Re: Btrfs scrub failure for raid 6 kernel 4.3

Wed, 30 Dec 2015 11:08:56 -0800 

Waxhead wrote:

Chris Murphy wrote:

Well all the generations on all devices are now the same, and so are
the chunk trees. I haven't looked at them in detail to see if there
are any discrepancies among them.

If you don't care much for this file system, then you could try btrfs
check --repair, using btrfs-progs 4.3.1 or integration branch. I have
no idea where btrfsck repair is at with raid56.

On the one hand, corruption should be fixed by scrub. But scrub fails
with a kernel trace. Maybe btrfs check --repair can fix the tree block
corruption since scrub can't, and then if that corruption is fixed,
possibly scrub will work.
I could not care less about this particular filesystem as I wrote in the original post. It's just for having some fun with btrfs. What I find troublesome is that corrupting one (or even two) drives in a Raid6 config fails. Granted the filesystem "works" e.g. I can mount it and access files, but I get a input/output error on a file on this filesystem and btrfs only shows warning (not errors) on device sdg1 where the csum failed. A raid6 setup should work fine even if two missing disks (or in this case chunks of data) is missing and even if I don't care about this filesystem I care about btrfs getting stable ;) so if I can help I'll keep this filesystem around for a little longer!
For your information I tried a balance on the filesystem - a new stack trace below (the system is still working). Sorry for flooding the mailinglist with the stack trace - this is what I got from dmesg , hope it is of some use... / gets used... :)
[ 243.603661] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.603664] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.603676] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.603687] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.603697] 00000078 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.603699] Call Trace:
[  243.603716]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.603724]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.603763]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.603798]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.603806]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.603837]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.603877]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.603889]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.603930]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.603969] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.604003]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.604110]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.604152]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.604198]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.604242] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.604282] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.604326]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.604338]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.604345]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.604391]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.604430]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.604437]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.604443]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.604453]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.604460]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.604468]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.604476]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.604520]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.604527]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.604534]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.604542]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.604549]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.604557]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.604563] ---[ end trace eb3e6200cba2a564 ]---
[  243.604654] ------------[ cut here ]------------
[ 243.604695] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.604813] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.604837] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.604847] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.604849] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.604862] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.604873] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 
[  243.604885] Call Trace:
[  243.604898]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.604905]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.604943]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.604975]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.604982]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.605014]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.605053]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.605064]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.605105]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.605145] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.605179]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.605224]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.605270]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.605312]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.605353] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.605397] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.605439]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.605449]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.605456]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.605498]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.605537]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.605547]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.605553]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.605562]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.605569]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.605576]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.605584]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.605627]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.605634]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.605641]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.605650]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.605657]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.605664]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.605669] ---[ end trace eb3e6200cba2a565 ]---
[  243.605717] ------------[ cut here ]------------
[ 243.605757] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.605866] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.605889] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.605897] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.605899] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.605911] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.605923] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.605937] 0000007a eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.605938] Call Trace:
[  243.605949]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.605956]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.605994]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.606030]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.606037]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.606069]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.606106]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.606117]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.606157]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.606200] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.606235]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.606276]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.606321]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.606368]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.606411] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.606450] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.606493]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.606504]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.606511]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.606556]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.606595]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.606602]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.606608]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.606617]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.606624]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.606632]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.606639]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.606682]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.606689]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.606696]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.606704]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.606710]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.606718]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.606722] ---[ end trace eb3e6200cba2a566 ]---
[  243.625448] ------------[ cut here ]------------
[ 243.625496] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.625624] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.625654] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.625664] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.625666] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.625680] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.625692] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.625702] 0000001e eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.625704] Call Trace:
[  243.625720]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.625728]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.625767]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.625800]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.625809]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.625844]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.625885]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.625896]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.625936]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.625974] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.626012]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.626060]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.626102]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.626143]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.626188] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.626234] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.626274]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.626285]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.626291]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.626335]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.626380]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.626388]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.626395]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.626404]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.626410]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.626419]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.626428]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.626471]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.626479]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.626487]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.626494]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.626501]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.626509]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.626514] ---[ end trace eb3e6200cba2a567 ]---
[  243.643463] ------------[ cut here ]------------
[ 243.643510] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.643638] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.643665] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.643674] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.643677] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.643691] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.643701] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.643716] 00000025 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.643718] Call Trace:
[  243.643734]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.643743]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.643782]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.643818]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.643826]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.643858]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.643898]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.643910]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.643951]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.643990] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.644022]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.644098]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.644143]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.644184]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.644225] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.644269] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.644314]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.644324]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.644331]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.644371]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.644410]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.644419]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.644426]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.644435]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.644442]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.644450]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.644458]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.644502]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.644510]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.644517]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.644525]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.644532]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.644542]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.644547] ---[ end trace eb3e6200cba2a568 ]---
[  243.644698] ------------[ cut here ]------------
[ 243.644739] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.644854] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.644878] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.644887] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.644890] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.644902] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.644913] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.644924] 00000038 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.644925] Call Trace:
[  243.644937]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.644944]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.644978]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.645015]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.645023]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.645059]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.645099]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.645109]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.645149]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.645192] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.645228]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.645270]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.645313]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.645360]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.645404] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.645444] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.645487]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.645497]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.645504]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.645550]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.645589]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.645596]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.645602]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.645611]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.645617]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.645625]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.645633]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.645677]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.645684]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.645691]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.645699]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.645706]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.645714]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.645718] ---[ end trace eb3e6200cba2a569 ]---
[  243.647013] ------------[ cut here ]------------
[ 243.647053] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.647164] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.647187] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.647195] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.647201] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.647214] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.647224] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.647235] 00000075 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.647237] Call Trace:
[  243.647248]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.647255]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.647294]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.647327]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.647334]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.647365]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.647405]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.647416]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.647457]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.647496] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.647531]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.647576]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.647621]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.647664]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.647705] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.647748] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.647793]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.647803]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.647810]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.647850]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.647889]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.647898]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.647904]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.647913]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.647919]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.647928]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.647936]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.647980]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.647988]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.647995]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.648002]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.648043]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.648051]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.648057] ---[ end trace eb3e6200cba2a56a ]---
[  243.648139] ------------[ cut here ]------------
[ 243.648181] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.648292] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.648315] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.648324] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.648326] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.648342] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.648353] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.648363] 00000078 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.648365] Call Trace:
[  243.648376]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.648383]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.648421]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.648456]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.648463]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.648495]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.648534]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.648545]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.648586]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.648625] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.648659]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.648704]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.648749]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.648791]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.648832] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.648876] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.648921]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.648930]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.648937]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.648976]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.649016]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.649025]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.649031]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.649040]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.649046]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.649054]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.649062]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.649105]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.649112]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.649119]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.649128]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.649135]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.649142]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.649147] ---[ end trace eb3e6200cba2a56b ]---
[  243.649514] ------------[ cut here ]------------
[ 243.649551] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.649661] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.649683] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.649691] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.649694] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.649708] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.649719] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.649729] 00000006 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.649731] Call Trace:
[  243.649742]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.649749]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.649787]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.649821]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.649828]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.649859]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.649899]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.649910]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.649950]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.649992] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.650027]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.650072]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.650117]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.650159]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.650201] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.650244] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.650289]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.650299]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.650306]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.650345]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.650384]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.650393]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.650400]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.650409]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.650415]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.650423]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.650430]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.650474]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.650481]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.650488]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.650496]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.650503]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.650509]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.650514] ---[ end trace eb3e6200cba2a56c ]---
[  243.650681] ------------[ cut here ]------------
[ 243.650721] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.650831] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.650855] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.650862] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.650865] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.650877] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.650888] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.650897] 00000009 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.650899] Call Trace:
[  243.650909]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.650918]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.650955]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.650992]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.650999]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.651033]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.651070]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.651081]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.651121]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.651164] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.651199]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.651240]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.651284]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.651331]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.651374] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.651413] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.651457]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.651467]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.651474]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.651520]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.651558]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.651565]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.651571]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.651580]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.651587]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.651595]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.651603]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.651646]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.651653]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.651660]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.651667]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.651674]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.651682]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.651688] ---[ end trace eb3e6200cba2a56d ]---
[  243.662959] ------------[ cut here ]------------
[ 243.663002] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.663129] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.663159] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.663169] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.663173] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.663186] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.663198] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.663208] 00000054 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.663210] Call Trace:
[  243.663226]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.663234]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.663271]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.663304]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.663313]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.663348]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.663390]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.663401]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.663439]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.663477] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.663514]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.663563]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.663604]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.663644]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.663689] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.663735] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.663776]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.663787]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.663793]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.663837]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.663883]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.663890]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.663897]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.663908]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.663914]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.663923]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.663932]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.663975]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.663984]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.663991]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.663999]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.664005]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.664062]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.664068] ---[ end trace eb3e6200cba2a56e ]---
[  243.664145] ------------[ cut here ]------------
[ 243.664184] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.664299] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.664323] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.664332] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.664334] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.664349] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.664360] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.664371] 00000055 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.664372] Call Trace:
[  243.664384]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.664392]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.664430]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.664465]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.664472]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.664504]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.664544]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.664555]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.664596]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.664635] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.664668]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.664713]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.664759]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.664800]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.664841] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.664885] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.664930]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.664939]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.664946]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.664985]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.665023]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.665033]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.665039]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.665049]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.665055]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.665063]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.665071]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.665115]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.665123]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.665130]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.665138]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.665145]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.665152]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.665157] ---[ end trace eb3e6200cba2a56f ]---
[  243.665538] ------------[ cut here ]------------
[ 243.665574] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.665687] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.665714] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.665721] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.665724] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.665736] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.665747] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.665757] 0000005f eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.665759] Call Trace:
[  243.665770]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.665777]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.665814]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.665849]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[ 243.665851] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.665857]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.665889]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.665927]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[ 243.665929] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.665937]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.665972]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.666010] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] [ 243.666012] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666043]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.666084]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.666123]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[ 243.666125] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666162]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.666202] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.666243] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] [ 243.666245] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666281]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.666290]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.666296]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.666336]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[ 243.666338] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666375]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.666381]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.666387]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.666397]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.666404]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.666411]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.666419]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.666457]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[ 243.666459] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666465]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.666472]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.666479]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.666486]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.666494]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[ 243.666496] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.666499] ---[ end trace eb3e6200cba2a570 ]---
[  243.666551] ------------[ cut here ]------------
[ 243.666588] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.666694] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.666718] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.666726] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.666729] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.666742] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.666752] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.666762] 00000060 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.666764] Call Trace:
[  243.666778]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.666785]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.666825]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.666860]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.666868]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.666902]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.666942]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.666954]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.666993]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.667035] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.667072]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.667119]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.667161]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.667207]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.667253] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.667295] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.667336]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.667347]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.667355]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.667398]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.667440]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.667448]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.667455]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.667464]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.667471]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.667479]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.667487]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.667530]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.667537]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.667544]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.667552]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.667559]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.667567]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.667573] ---[ end trace eb3e6200cba2a571 ]---
[  243.667637] ------------[ cut here ]------------
[ 243.667676] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.667712] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp [ 243.667713] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. [ 243.667821] pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.667830] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.667832] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.667845] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.667856] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.667866] 00000061 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.667868] Call Trace:
[  243.667881]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.667889]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.667930]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.667966]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.667974]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.668010]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.668093]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.668104]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.668143]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.668183] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.668219]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.668265]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.668308]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.668354]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.668400] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.668443] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.668486]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.668498]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.668505]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.668547]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.668591]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.668599]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.668605]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.668614]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.668620]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.668628]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.668636]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.668678]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.668685]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.668692]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.668702]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.668708]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.668716]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.668722] ---[ end trace eb3e6200cba2a572 ]---
[  243.668791] ------------[ cut here ]------------
[ 243.668833] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.668879] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops [ 243.668880] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. [ 243.668980] videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.668989] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.668991] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.669003] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.669014] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.669024] 00000062 eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.669025] Call Trace:
[  243.669039]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.669047]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.669086]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.669123]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.669131]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.669166]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.669207]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.669218]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.669257]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.669298] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.669335]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.669381]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.669425]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.669471]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.669516] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.669560] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.669603]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.669614]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.669622]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.669666]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.669710]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.669717]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.669723]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.669732]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.669738]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.669746]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.669755]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.669797]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.669805]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.669812]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.669820]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.669827]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.669835]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.669841] ---[ end trace eb3e6200cba2a573 ]---
[ 243.669892] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.670194] ------------[ cut here ]------------
[ 243.670236] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.670355] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.670381] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.670391] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.670394] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.670407] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.670418] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.670429] 0000006b eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.670431] Call Trace:
[  243.670445]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.670454]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.670494]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.670528]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.670536]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.670572]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.670613]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.670623]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.670662]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.670702] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.670739]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.670783]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.670828]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.670871]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.670913] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.670916] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. [ 243.670953] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.670991]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.671001]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.671008]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.671046]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.671086]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[ 243.671088] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.671094]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.671100]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.671109]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.671116]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.671124]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[ 243.671126] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.671132]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.671170]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.671177]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.671184]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.671193]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[ 243.671195] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.671200]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.671208]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.671213] ---[ end trace eb3e6200cba2a574 ]---
[ 243.671230] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.671279] ------------[ cut here ]------------
[ 243.671317] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.671432] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.671457] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.671466] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.671469] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.671482] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.671493] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.671505] 0000006c eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.671507] Call Trace:
[  243.671519]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.671527]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.671566]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.671602]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.671608]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.671643]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.671684]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.671696]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.671736]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.671778] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.671816]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.671861]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.671905]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.671950]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.671995] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.672026] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.672156]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.672168]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.672175]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.672220]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.672259]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.672266]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.672272]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.672281]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.672287]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.672295]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[ 243.672297] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.672304]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.672342]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.672349]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.672357]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.672366]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[ 243.672368] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.672373]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.672380]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.672387] ---[ end trace eb3e6200cba2a575 ]---
[ 243.672403] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.672456] ------------[ cut here ]------------
[ 243.672493] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.672610] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.672636] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.672646] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.672649] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.672662] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.672673] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.672684] 0000006d eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.672686] Call Trace:
[  243.672700]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.672708]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.672747]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.672783]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.672789]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.672823]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.672864]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.672876]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.672917]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.672960] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.672997]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.673043]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.673087]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.673131]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.673176] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.673220] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.673262]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.673273]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.673281]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.673324]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.673365]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.673373]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.673380]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.673389]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.673396]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.673403]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.673411]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.673455]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.673462]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.673469]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.673477]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.673483]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.673490]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.673497] ---[ end trace eb3e6200cba2a576 ]---
[ 243.673513] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.673563] ------------[ cut here ]------------
[ 243.673602] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.673718] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.673744] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.673754] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.673756] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.673770] 00000000 09f7a8eb eef57990 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.673781] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8b18 00000000 [ 243.673792] 0000006e eef579a0 c1066962 00000009 00000000 eef57a6c f86350ff 00000000 
[  243.673794] Call Trace:
[  243.673807]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.673815]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.673854]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.673890]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.673896]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.673931]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.673972]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.673983]  [<c12d4f2e>] ? __percpu_counter_add+0x8e/0xb0
[  243.674024]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[ 243.674065] [<f86520cc>] ? btrfs_should_end_transaction+0x3c/0x60 [btrfs] 
[  243.674104]  [<f863b276>] ? btrfs_drop_snapshot+0x426/0x850 [btrfs]
[  243.674150]  [<f86ae67e>] ? merge_reloc_roots+0xee/0x260 [btrfs]
[  243.674193]  [<f86a9777>] ? remove_backref_node+0x67/0xe0 [btrfs]
[  243.674237]  [<f86aea7f>] ? relocate_block_group+0x28f/0x750 [btrfs]
[ 243.674283] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.674326] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.674369]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.674380]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.674387]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.674431]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.674475]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.674482]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.674489]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.674497]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.674503]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.674511]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.674518]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[ 243.674520] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.674557]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.674564]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.674571]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.674578]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.674585]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.674593]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[ 243.674596] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. 
[  243.674599] ---[ end trace eb3e6200cba2a577 ]---
[  243.684117] ------------[ cut here ]------------
[ 243.684172] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.684186] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.684538] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.684585] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.684593] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.684601] 00000000 09f7a8eb eef579d8 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.684620] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8bf8 00000000 [ 243.684639] 000000aa eef579e8 c1066962 00000009 00000000 eef57ab4 f86350ff 00000000 
[  243.684657] Call Trace:
[  243.684676]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.684689]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.684731]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.684770]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.684782]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.684821]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.684865]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.684880]  [<c10cfeaa>] ? ktime_get+0x4a/0x120
[  243.684895]  [<c109d23b>] ? pick_next_task_fair+0x41b/0x4c0
[  243.684906]  [<c10cb0fb>] ? hrtimer_interrupt+0xbb/0x1a0
[  243.684947]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[  243.684992]  [<f865271c>] ? btrfs_commit_transaction+0x4c/0xe70 [btrfs]
[  243.685035]  [<f86535bd>] ? start_transaction+0x7d/0x5b0 [btrfs]
[  243.685049]  [<c1532aa8>] ? preempt_schedule_common+0x18/0x30
[  243.685060]  [<c1532ae5>] ? _cond_resched+0x25/0x30
[  243.685109]  [<f86aeae2>] ? relocate_block_group+0x2f2/0x750 [btrfs]
[ 243.685156] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.685205] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.685252]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.685273]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.685292]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.685339]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.685388]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.685405]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.685425]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.685442]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.685458]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.685478]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.685497]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.685547]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.685563]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.685580]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.685597]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.685613]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.685630]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.685644] ---[ end trace eb3e6200cba2a578 ]---
[  243.685702] ------------[ cut here ]------------
[ 243.685747] WARNING: CPU: 0 PID: 1182 at /build/linux-P8Ifgy/linux-4.3.3/fs/btrfs/extent-tree.c:6410 __btrfs_free_extent+0xbbf/0xec0 [btrfs]() [ 243.685762] Modules linked in: cpufreq_stats cpufreq_conservative cpufreq_userspace bnep cpufreq_powersave zram zsmalloc lz4_compress nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc joydev iTCO_wdt iTCO_vendor_support sparse_keymap arc4 acerhdf coretemp pcspkr evdev psmouse serio_raw i2c_i801 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev media lpc_ich mfd_core btusb btrtl btbcm btintel rng_core bluetooth ath5k ath snd_hda_codec_realtek snd_hda_codec_generic mac80211 jmb38x_ms snd_hda_intel i915 cfg80211 memstick snd_hda_codec rfkill snd_hda_core snd_hwdep drm_kms_helper snd_pcm snd_timer shpchp snd soundcore drm i2c_algo_bit wmi battery video ac button acpi_cpufreq processor sg loop autofs4 uas usb_storage ext4 crc16 mbcache jbd2 crc32c_generic btrfs xor [ 243.685928] raid6_pq md_mod sd_mod ata_generic ata_piix libata scsi_mod uhci_hcd ehci_pci ehci_hcd sdhci_pci usbcore sdhci usb_common mmc_core r8169 mii [ 243.685969] CPU: 0 PID: 1182 Comm: btrfs Tainted: G W 4.3.0-1-686-pae #1 Debian 4.3.3-2 
[  243.685976] Hardware name: Acer AOA150/        , BIOS v0.3310 10/06/2008
[ 243.685983] 00000000 09f7a8eb eef579d8 c12ae3c5 00000000 c106685d c1614e20 00000000 [ 243.686001] 0000049e f86df010 0000190a f86350ff 00000009 f86350ff f1dd8bf8 00000000 [ 243.686019] 0000003d eef579e8 c1066962 00000009 00000000 eef57ab4 f86350ff 00000000 
[  243.686037] Call Trace:
[  243.686051]  [<c12ae3c5>] ? dump_stack+0x3e/0x59
[  243.686063]  [<c106685d>] ? warn_slowpath_common+0x8d/0xc0
[  243.686104]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.686143]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.686155]  [<c1066962>] ? warn_slowpath_null+0x22/0x30
[  243.686195]  [<f86350ff>] ? __btrfs_free_extent+0xbbf/0xec0 [btrfs]
[  243.686239]  [<f86394ae>] ? __btrfs_run_delayed_refs+0x96e/0x11a0 [btrfs]
[  243.686253]  [<c10cfeaa>] ? ktime_get+0x4a/0x120
[  243.686269]  [<c109d23b>] ? pick_next_task_fair+0x41b/0x4c0
[  243.686279]  [<c10cb0fb>] ? hrtimer_interrupt+0xbb/0x1a0
[  243.686321]  [<f863caed>] ? btrfs_run_delayed_refs+0x6d/0x250 [btrfs]
[  243.686365]  [<f865271c>] ? btrfs_commit_transaction+0x4c/0xe70 [btrfs]
[  243.686409]  [<f86535bd>] ? start_transaction+0x7d/0x5b0 [btrfs]
[  243.686420]  [<c1532aa8>] ? preempt_schedule_common+0x18/0x30
[  243.686439]  [<c1532ae5>] ? _cond_resched+0x25/0x30
[  243.686487]  [<f86aeae2>] ? relocate_block_group+0x2f2/0x750 [btrfs]
[ 243.686535] [<f86af118>] ? btrfs_relocate_block_group+0x1d8/0x2e0 [btrfs] [ 243.686582] [<f8681bcd>] ? btrfs_relocate_chunk.isra.29+0x3d/0xf0 [btrfs] 
[  243.686629]  [<f868357c>] ? btrfs_balance+0x97c/0x12e0 [btrfs]
[  243.686649]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.686668]  [<c1154c5d>] ? get_page_from_freelist+0x3dd/0x5c0
[  243.686714]  [<f8690c05>] ? btrfs_ioctl_balance+0x385/0x390 [btrfs]
[  243.686761]  [<f86931f3>] ? btrfs_ioctl+0x793/0x2c50 [btrfs]
[  243.686777]  [<c115505b>] ? __alloc_pages_nodemask+0x13b/0x850
[  243.686793]  [<c11b5349>] ? terminate_walk+0x69/0xc0
[  243.686809]  [<c1182edf>] ? anon_vma_prepare+0xdf/0x130
[  243.686828]  [<c118218c>] ? page_add_new_anon_rmap+0x6c/0x90
[  243.686848]  [<c1179823>] ? handle_mm_fault+0xa63/0x14f0
[  243.686864]  [<c12b45c3>] ? __rb_insert_augmented+0xf3/0x1c0
[  243.686911]  [<f8692a60>] ? update_ioctl_balance_args+0x1c0/0x1c0 [btrfs]
[  243.686928]  [<c11be382>] ? do_vfs_ioctl+0x2e2/0x500
[  243.686944]  [<c117e6f3>] ? do_brk+0x113/0x2b0
[  243.686964]  [<c1058900>] ? __do_page_fault+0x1a0/0x460
[  243.686981]  [<c11be608>] ? SyS_ioctl+0x68/0x80
[  243.686997]  [<c1536257>] ? sysenter_do_call+0x12/0x12
[  243.687011] ---[ end trace eb3e6200cba2a579 ]---
[ 243.700346] systemd-journald[228]: /dev/kmsg buffer overrun, some messages lost. [ 247.003571] perf interrupt took too long (2531 > 2500), lowering kernel.perf_event_max_sample_rate to 50000 

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