Hi
At my home machine I use btrfs from the latest Linux kernel (Linux Arch).
A few days ago I started rebalance but unfortunately the machine got
rebooted. It looks like rebalance operation is not interrupt-tolerant
and now my filesystem got corrupted.
I see a lot of checksum errors, but as I use RAID most of these error
got fixed, I started scrub operation to find/fix all the problems but
the scrub operation got cancelled at the very beginning. I see
following error in kernel logs, it says "(device sdb):
run_one_delayed_ref returned -5" and after that "(device sdb): forced
readonly". What does it suppose to mean? I expect that scrub either
fix filesystem inconsistency problems. Or tell me what file are not
recoverable so I can delete/restore the data from backup. But now I
have a readonly filsystem and scrub refuses to recover it.
I see the same issue with current HEAD (v4.2-rc3). I enabled btrfs
debugging to get more info what is going on here
[ 609.802479] BTRFS: read error corrected: ino 1 off 25324783960064
(dev /dev/sdc sector 2530931648)
[ 609.814791] BTRFS (device sdb): parent transid verify failed on
25324789198848 wanted 443932 found 413701
[ 609.835181] BTRFS: read error corrected: ino 1 off 25324789198848
(dev /dev/sdc sector 2530941880)
[ 609.846056] BTRFS (device sdb): parent transid verify failed on
25324789448704 wanted 443932 found 413701
[ 609.858280] BTRFS: read error corrected: ino 1 off 25324789448704
(dev /dev/sdc sector 2530942368)
[ 609.859835] BTRFS (device sdb): parent transid verify failed on
25324789387264 wanted 443932 found 413701
[ 609.870867] BTRFS: read error corrected: ino 1 off 25324789387264
(dev /dev/sdc sector 2530942248)
[ 609.872679] BTRFS (device sdb): parent transid verify failed on
25324822609920 wanted 443938 found 441825
[ 609.909616] BTRFS: read error corrected: ino 1 off 25324822609920
(dev /dev/sdc sector 2531007136)
[ 609.967041] BTRFS (device sdb): parent transid verify failed on
25324678742016 wanted 443932 found 441820
[ 609.970855] BTRFS: read error corrected: ino 1 off 25324678742016
(dev /dev/sdc sector 2530726144)
[ 610.008460] BTRFS (device sdb): parent transid verify failed on
25324908392448 wanted 443938 found 415080
[ 610.041669] BTRFS: read error corrected: ino 1 off 25324908392448
(dev /dev/sdc sector 2531174680)
[ 610.116968] BTRFS (device sdb): parent transid verify failed on
25325058904064 wanted 443941 found 441828
[ 610.123595] BTRFS: read error corrected: ino 1 off 25325058904064
(dev /dev/sdc sector 4024575336)
[ 610.128482] BTRFS: read error corrected: ino 1 off 25324674007040
(dev /dev/sdc sector 2530716896)
[ 640.028885] verify_parent_transid: 19 callbacks suppressed
[ 640.030377] BTRFS (device sdb): parent transid verify failed on
25324845932544 wanted 443938 found 441825
[ 640.062917] repair_io_failure: 18 callbacks suppressed
[ 640.064486] BTRFS: read error corrected: ino 1 off 25324845932544
(dev /dev/sdc sector 2531052688)
[ 640.119903] BTRFS (device sdb): parent transid verify failed on
25324845969408 wanted 443938 found 441827
[ 640.125322] BTRFS: read error corrected: ino 1 off 25324845969408
(dev /dev/sdc sector 2531052760)
[ 640.142157] BTRFS (device sdb): parent transid verify failed on
25325043716096 wanted 443940 found 441827
[ 640.174974] BTRFS: read error corrected: ino 1 off 25325043716096
(dev /dev/sdc sector 4024545672)
[ 640.185464] BTRFS (device sdb): parent transid verify failed on
25325503774720 wanted 443950 found 441837
[ 640.238762] BTRFS: read error corrected: ino 1 off 25325503774720
(dev /dev/sdc sector 4025444224)
[ 641.718129] BTRFS (device sdb): parent transid verify failed on
25325006667776 wanted 443940 found 441827
[ 641.721734] BTRFS: read error corrected: ino 1 off 25325006667776
(dev /dev/sdc sector 4024473312)
[ 641.723841] BTRFS (device sdb): parent transid verify failed on
25325006692352 wanted 443940 found 441827
[ 641.725775] BTRFS: read error corrected: ino 1 off 25325006692352
(dev /dev/sdc sector 4024473360)
[ 641.742454] BTRFS (device sdb): parent transid verify failed on
25325006716928 wanted 443940 found 441827
[ 641.744649] BTRFS: read error corrected: ino 1 off 25325006716928
(dev /dev/sdc sector 4024473408)
[ 641.778807] BTRFS (device sdb): parent transid verify failed on
25324804997120 wanted 443937 found 413700
[ 641.819483] BTRFS: read error corrected: ino 1 off 25324804997120
(dev /dev/sdc sector 2530972736)
[ 641.821201] BTRFS (device sdb): parent transid verify failed on
25324782997504 wanted 443937 found 441823
[ 641.834794] BTRFS: read error corrected: ino 1 off 25324782997504
(dev /dev/sdc sector 2530929768)
[ 641.836415] BTRFS (device sdb): parent transid verify failed on
25324805001216 wanted 443937 found 413700
[ 641.838488] BTRFS: read error corrected: ino 1 off 25324805001216
(dev /dev/sdc sector 2530972744)
[ 644.531005] BTRFS error (device sdb): run_one_delayed_ref returned -5
[ 644.534562] ------------[ cut here ]------------
[ 644.536283] WARNING: CPU: 1 PID: 106 at fs/btrfs/extent-tree.c:2783
btrfs_run_delayed_refs.part.40+0x223/0x250 [btrfs]()
[ 644.538163] BTRFS: Transaction aborted (error -5)
[ 644.538166] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 644.550463] CPU: 1 PID: 106 Comm: kworker/u4:9 Not tainted
4.2.0-rc4-gc4b5fd3 #1
[ 644.552217] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 644.553897] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
[ 644.555567] 0000000000000000 00000000bd668e66 ffff8800c88d7c68
ffffffff81565fb9
[ 644.557249] 0000000000000000 ffff8800c88d7cc0 ffff8800c88d7ca8
ffffffff810737a6
[ 644.558888] 0000000000000174 ffff88005d8e7000 ffff8800b8ed85a0
ffff8800c9716000
[ 644.560498] Call Trace:
[ 644.562131] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 644.563664] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 644.565160] [<ffffffff81073835>] warn_slowpath_fmt+0x55/0x70
[ 644.566662] [<ffffffffa0778623>]
btrfs_run_delayed_refs.part.40+0x223/0x250 [btrfs]
[ 644.568176] [<ffffffffa07786ee>] delayed_ref_async_start+0x7e/0x90 [btrfs]
[ 644.569642] [<ffffffffa07bc227>] btrfs_scrubparity_helper+0x77/0x2e0 [btrfs]
[ 644.571116] [<ffffffffa07bc4ce>] btrfs_extent_refs_helper+0xe/0x10 [btrfs]
[ 644.572502] [<ffffffff8108b49b>] process_one_work+0x14b/0x440
[ 644.573905] [<ffffffff8108b7d8>] worker_thread+0x48/0x4a0
[ 644.575260] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 644.576587] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 644.577914] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 644.579198] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 644.580500] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 644.581770] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 644.582992] ---[ end trace 7d2de1231b57cbbb ]---
[ 644.584178] BTRFS: error (device sdb) in
btrfs_run_delayed_refs:2783: errno=-5 IO failure
[ 644.585389] BTRFS error (device sdb): forced readonly
[ 645.146126] verify_parent_transid: 46 callbacks suppressed
[ 645.147359] BTRFS (device sdb): parent transid verify failed on
25325295259648 wanted 443949 found 441837
[ 645.164884] BTRFS (device sdb): parent transid verify failed on
25325007695872 wanted 443940 found 414638
[ 645.174681] BTRFS (device sdb): parent transid verify failed on
25325007749120 wanted 443940 found 414638
[ 645.178334] BTRFS (device sdb): parent transid verify failed on
25325007753216 wanted 443940 found 414638
[ 645.237449] BTRFS (device sdb): parent transid verify failed on
25325007773696 wanted 443940 found 441827
[ 645.242862] BTRFS (device sdb): parent transid verify failed on
25324802801664 wanted 443937 found 441823
[ 645.254271] BTRFS (device sdb): parent transid verify failed on
25325101031424 wanted 443941 found 441828
[ 645.285372] BTRFS (device sdb): parent transid verify failed on
25325007802368 wanted 443940 found 414638
[ 645.287101] BTRFS (device sdb): parent transid verify failed on
25325007872000 wanted 443940 found 441827
[ 645.288678] BTRFS (device sdb): parent transid verify failed on
25325007884288 wanted 443940 found 441827
[ 645.422416] ------------[ cut here ]------------
[ 645.423418] WARNING: CPU: 1 PID: 97 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 645.424480] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 645.431851] CPU: 1 PID: 97 Comm: kworker/u4:4 Tainted: G W
4.2.0-rc4-gc4b5fd3 #1
[ 645.432859] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 645.433877] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
[ 645.434881] 0000000000000000 000000006a3037c0 ffff8800c8853b78
ffffffff81565fb9
[ 645.435889] 0000000000000000 0000000000000000 ffff8800c8853bb8
ffffffff810737a6
[ 645.436871] ffff8800c8946400 ffff88005d8e7f18 ffff8800b8ed8468
0000000000000000
[ 645.437850] Call Trace:
[ 645.438827] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 645.439808] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 645.440787] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 645.441765] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 645.442750] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 645.443747] [<ffffffffa07888ce>] ?
join_transaction.isra.3+0x10e/0x410 [btrfs]
[ 645.444734] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 645.445728] [<ffffffffa07786ee>] delayed_ref_async_start+0x7e/0x90 [btrfs]
[ 645.446721] [<ffffffffa07bc227>] btrfs_scrubparity_helper+0x77/0x2e0 [btrfs]
[ 645.447717] [<ffffffffa07bc4ce>] btrfs_extent_refs_helper+0xe/0x10 [btrfs]
[ 645.448707] [<ffffffff8108b49b>] process_one_work+0x14b/0x440
[ 645.449694] [<ffffffff8108b7d8>] worker_thread+0x48/0x4a0
[ 645.450681] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 645.451680] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 645.452679] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 645.453679] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 645.454676] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 645.455677] ---[ end trace 7d2de1231b57cbbc ]---
[ 647.522620] ------------[ cut here ]------------
[ 647.523817] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.524955] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.534023] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.535333] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.536686] 0000000000000000 00000000f9176ba6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.538039] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.539430] ffff8800c24c3b48 ffff88005d9827e8 ffff8800b8ed8468
0000000000000000
[ 647.540822] Call Trace:
[ 647.542221] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.543554] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.544838] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.546112] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.547290] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.548487] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.549691] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.550823] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.552024] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.553221] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.554295] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.555464] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.556609] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.557662] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.558821] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.559917] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.560963] ---[ end trace 7d2de1231b57cbbd ]---
[ 647.593339] ------------[ cut here ]------------
[ 647.594465] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.595774] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.606558] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.607870] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.609407] 0000000000000000 00000000f9176ba[ 609.802479] BTRFS:
read error corrected: ino 1 off 25324783960064
(dev /dev/sdc sector 2530931648)
[ 609.814791] BTRFS (device sdb): parent transid verify failed on
25324789198848 wanted 443932 found 413701
[ 609.835181] BTRFS: read error corrected: ino 1 off 25324789198848
(dev /dev/sdc sector 2530941880)
[ 609.846056] BTRFS (device sdb): parent transid verify failed on
25324789448704 wanted 443932 found 413701
[ 609.858280] BTRFS: read error corrected: ino 1 off 25324789448704
(dev /dev/sdc sector 2530942368)
[ 609.859835] BTRFS (device sdb): parent transid verify failed on
25324789387264 wanted 443932 found 413701
[ 609.870867] BTRFS: read error corrected: ino 1 off 25324789387264
(dev /dev/sdc sector 2530942248)
[ 609.872679] BTRFS (device sdb): parent transid verify failed on
25324822609920 wanted 443938 found 441825
[ 609.909616] BTRFS: read error corrected: ino 1 off 25324822609920
(dev /dev/sdc sector 2531007136)
[ 609.967041] BTRFS (device sdb): parent transid verify failed on
25324678742016 wanted 443932 found 441820
[ 609.970855] BTRFS: read error corrected: ino 1 off 25324678742016
(dev /dev/sdc sector 2530726144)
[ 610.008460] BTRFS (device sdb): parent transid verify failed on
25324908392448 wanted 443938 found 415080
[ 610.041669] BTRFS: read error corrected: ino 1 off 25324908392448
(dev /dev/sdc sector 2531174680)
[ 610.116968] BTRFS (device sdb): parent transid verify failed on
25325058904064 wanted 443941 found 441828
[ 610.123595] BTRFS: read error corrected: ino 1 off 25325058904064
(dev /dev/sdc sector 4024575336)
[ 610.128482] BTRFS: read error corrected: ino 1 off 25324674007040
(dev /dev/sdc sector 2530716896)
[ 640.028885] verify_parent_transid: 19 callbacks suppressed
[ 640.030377] BTRFS (device sdb): parent transid verify failed on
25324845932544 wanted 443938 found 441825
[ 640.062917] repair_io_failure: 18 callbacks suppressed
[ 640.064486] BTRFS: read error corrected: ino 1 off 25324845932544
(dev /dev/sdc sector 2531052688)
[ 640.119903] BTRFS (device sdb): parent transid verify failed on
25324845969408 wanted 443938 found 441827
[ 640.125322] BTRFS: read error corrected: ino 1 off 25324845969408
(dev /dev/sdc sector 2531052760)
[ 640.142157] BTRFS (device sdb): parent transid verify failed on
25325043716096 wanted 443940 found 441827
[ 640.174974] BTRFS: read error corrected: ino 1 off 25325043716096
(dev /dev/sdc sector 4024545672)
[ 640.185464] BTRFS (device sdb): parent transid verify failed on
25325503774720 wanted 443950 found 441837
[ 640.238762] BTRFS: read error corrected: ino 1 off 25325503774720
(dev /dev/sdc sector 4025444224)
[ 641.718129] BTRFS (device sdb): parent transid verify failed on
25325006667776 wanted 443940 found 441827
[ 641.721734] BTRFS: read error corrected: ino 1 off 25325006667776
(dev /dev/sdc sector 4024473312)
[ 641.723841] BTRFS (device sdb): parent transid verify failed on
25325006692352 wanted 443940 found 441827
[ 641.725775] BTRFS: read error corrected: ino 1 off 25325006692352
(dev /dev/sdc sector 4024473360)
[ 641.742454] BTRFS (device sdb): parent transid verify failed on
25325006716928 wanted 443940 found 441827
[ 641.744649] BTRFS: read error corrected: ino 1 off 25325006716928
(dev /dev/sdc sector 4024473408)
[ 641.778807] BTRFS (device sdb): parent transid verify failed on
25324804997120 wanted 443937 found 413700
[ 641.819483] BTRFS: read error corrected: ino 1 off 25324804997120
(dev /dev/sdc sector 2530972736)
[ 641.821201] BTRFS (device sdb): parent transid verify failed on
25324782997504 wanted 443937 found 441823
[ 641.834794] BTRFS: read error corrected: ino 1 off 25324782997504
(dev /dev/sdc sector 2530929768)
[ 641.836415] BTRFS (device sdb): parent transid verify failed on
25324805001216 wanted 443937 found 413700
[ 641.838488] BTRFS: read error corrected: ino 1 off 25324805001216
(dev /dev/sdc sector 2530972744)
[ 644.531005] BTRFS error (device sdb): run_one_delayed_ref returned -5
[ 644.534562] ------------[ cut here ]------------
[ 644.536283] WARNING: CPU: 1 PID: 106 at fs/btrfs/extent-tree.c:2783
btrfs_run_delayed_refs.part.40+0x223/0x250 [btrfs]()
[ 644.538163] BTRFS: Transaction aborted (error -5)
[ 644.538166] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 644.550463] CPU: 1 PID: 106 Comm: kworker/u4:9 Not tainted
4.2.0-rc4-gc4b5fd3 #1
[ 644.552217] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 644.553897] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
[ 644.555567] 0000000000000000 00000000bd668e66 ffff8800c88d7c68
ffffffff81565fb9
[ 644.557249] 0000000000000000 ffff8800c88d7cc0 ffff8800c88d7ca8
ffffffff810737a6
[ 644.558888] 0000000000000174 ffff88005d8e7000 ffff8800b8ed85a0
ffff8800c9716000
[ 644.560498] Call Trace:
[ 644.562131] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 644.563664] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 644.565160] [<ffffffff81073835>] warn_slowpath_fmt+0x55/0x70
[ 644.566662] [<ffffffffa0778623>]
btrfs_run_delayed_refs.part.40+0x223/0x250 [btrfs]
[ 644.568176] [<ffffffffa07786ee>] delayed_ref_async_start+0x7e/0x90 [btrfs]
[ 644.569642] [<ffffffffa07bc227>] btrfs_scrubparity_helper+0x77/0x2e0 [btrfs]
[ 644.571116] [<ffffffffa07bc4ce>] btrfs_extent_refs_helper+0xe/0x10 [btrfs]
[ 644.572502] [<ffffffff8108b49b>] process_one_work+0x14b/0x440
[ 644.573905] [<ffffffff8108b7d8>] worker_thread+0x48/0x4a0
[ 644.575260] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 644.576587] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 644.577914] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 644.579198] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 644.580500] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 644.581770] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 644.582992] ---[ end trace 7d2de1231b57cbbb ]---
[ 644.584178] BTRFS: error (device sdb) in
btrfs_run_delayed_refs:2783: errno=-5 IO failure
[ 644.585389] BTRFS error (device sdb): forced readonly
[ 645.146126] verify_parent_transid: 46 callbacks suppressed
[ 645.147359] BTRFS (device sdb): parent transid verify failed on
25325295259648 wanted 443949 found 441837
[ 645.164884] BTRFS (device sdb): parent transid verify failed on
25325007695872 wanted 443940 found 414638
[ 645.174681] BTRFS (device sdb): parent transid verify failed on
25325007749120 wanted 443940 found 414638
[ 645.178334] BTRFS (device sdb): parent transid verify failed on
25325007753216 wanted 443940 found 414638
[ 645.237449] BTRFS (device sdb): parent transid verify failed on
25325007773696 wanted 443940 found 441827
[ 645.242862] BTRFS (device sdb): parent transid verify failed on
25324802801664 wanted 443937 found 441823
[ 645.254271] BTRFS (device sdb): parent transid verify failed on
25325101031424 wanted 443941 found 441828
[ 645.285372] BTRFS (device sdb): parent transid verify failed on
25325007802368 wanted 443940 found 414638
[ 645.287101] BTRFS (device sdb): parent transid verify failed on
25325007872000 wanted 443940 found 441827
[ 645.288678] BTRFS (device sdb): parent transid verify failed on
25325007884288 wanted 443940 found 441827
[ 645.422416] ------------[ cut here ]------------
[ 645.423418] WARNING: CPU: 1 PID: 97 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 645.424480] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 645.431851] CPU: 1 PID: 97 Comm: kworker/u4:4 Tainted: G W
4.2.0-rc4-gc4b5fd3 #1
[ 645.432859] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 645.433877] Workqueue: btrfs-extent-refs btrfs_extent_refs_helper [btrfs]
[ 645.434881] 0000000000000000 000000006a3037c0 ffff8800c8853b78
ffffffff81565fb9
[ 645.435889] 0000000000000000 0000000000000000 ffff8800c8853bb8
ffffffff810737a6
[ 645.436871] ffff8800c8946400 ffff88005d8e7f18 ffff8800b8ed8468
0000000000000000
[ 645.437850] Call Trace:
[ 645.438827] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 645.439808] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 645.440787] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 645.441765] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 645.442750] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 645.443747] [<ffffffffa07888ce>] ?
join_transaction.isra.3+0x10e/0x410 [btrfs]
[ 645.444734] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 645.445728] [<ffffffffa07786ee>] delayed_ref_async_start+0x7e/0x90 [btrfs]
[ 645.446721] [<ffffffffa07bc227>] btrfs_scrubparity_helper+0x77/0x2e0 [btrfs]
[ 645.447717] [<ffffffffa07bc4ce>] btrfs_extent_refs_helper+0xe/0x10 [btrfs]
[ 645.448707] [<ffffffff8108b49b>] process_one_work+0x14b/0x440
[ 645.449694] [<ffffffff8108b7d8>] worker_thread+0x48/0x4a0
[ 645.450681] [<ffffffff8108b790>] ? process_one_work+0x440/0x440
[ 645.451680] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 645.452679] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 645.453679] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 645.454676] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 645.455677] ---[ end trace 7d2de1231b57cbbc ]---
[ 647.522620] ------------[ cut here ]------------
[ 647.523817] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.524955] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.534023] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.535333] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.536686] 0000000000000000 00000000f9176ba6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.538039] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.539430] ffff8800c24c3b48 ffff88005d9827e8 ffff8800b8ed8468
0000000000000000
[ 647.540822] Call Trace:
[ 647.542221] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.543554] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.544838] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.546112] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.547290] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.548487] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.549691] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.550823] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.552024] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.553221] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.554295] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.555464] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.556609] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.557662] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.558821] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.559917] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.560963] ---[ end trace 7d2de1231b57cbbd ]---
[ 647.593339] ------------[ cut here ]------------
[ 647.594465] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.595774] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.606558] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.607870] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.609407] 0000000000000000 00000000f9176ba6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.610719] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.612201] ffff8800c24c3b48 ffff88005d982c38 ffff8800b8ed8468
0000000000000000
[ 647.613602] Call Trace:
[ 647.615053] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.616350] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.617691] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.619082] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.620360] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.621707] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.622969] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.624212] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.625448] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.626655] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.627808] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.629000] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.630149] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.631276] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.632441] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.633604] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.634698] ---[ end trace 7d2de1231b57cbbe ]---
[ 647.650381] ------------[ cut here ]------------
[ 647.651534] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.652641] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.661181] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.662412] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.663648] 0000000000000000 00000000f9176ba6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.664952] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.666267] ffff8800c24c3b48 ffff88005d9820b8 ffff8800b8ed8468
0000000000000000
[ 647.667527] Call Trace:
[ 647.668794] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.670109] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.671368] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.672627] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.673858] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.675099] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.676337] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.677492] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.678594] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.679780] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.680935] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.682019] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.683130] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.684251] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.685326] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.686445] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.687537] ---[ end trace 7d2de1231b57cbbf ]---
[ 650.786951] BTRFS error (device sdb): Skipping commit of aborted transaction.
[ 650.788422] BTRFS: error (device sdb) in cleanup_transaction:1710:
errno=-5 IO failure6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.610719] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.612201] ffff8800c24c3b48 ffff88005d982c38 ffff8800b8ed8468
0000000000000000
[ 647.613602] Call Trace:
[ 647.615053] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.616350] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.617691] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.619082] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.620360] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.621707] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.622969] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.624212] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.625448] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.626655] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.627808] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.629000] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.630149] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.631276] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.632441] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.633604] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.634698] ---[ end trace 7d2de1231b57cbbe ]---
[ 647.650381] ------------[ cut here ]------------
[ 647.651534] WARNING: CPU: 0 PID: 275 at fs/btrfs/delayed-ref.c:265
btrfs_select_ref_head+0x116/0x130 [btrfs]()
[ 647.652641] Modules linked in: nct6775 hwmon_vid btrfs xor
intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel kvm iTCO_wdt iTCO_vendor_support ppdev evdev mac_hid
snd_hda_codec_hdmi serio_raw psmouse snd_hda_codec_realtek
snd_hda_codec_generic i2c_i801 crct10dif_pclmul crc32_pclmul
crc32c_intel i915 ghash_clmulni_intel cryptd pcspkr snd_hda_intel
snd_hda_codec raid6_pq snd_hda_core snd_hwdep drm_kms_helper atl1c
snd_pcm drm snd_timer intel_gtt snd i2c_algo_bit i2c_core lpc_ich
soundcore shpchp mei_me parport_pc nuvoton_cir mei rc_core parport
battery tpm_tis tpm video button processor sch_fq_codel ip_tables
x_tables ext4 crc16 mbcache jbd2 sd_mod uas usb_storage atkbd libps2
ahci libahci ehci_pci ehci_hcd xhci_pci libata xhci_hcd scsi_mod
usbcore usb_common i8042 serio
[ 647.661181] CPU: 0 PID: 275 Comm: btrfs-transacti Tainted: G
W 4.2.0-rc4-gc4b5fd3 #1
[ 647.662412] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./H61M/U3S3, BIOS P2.20 07/30/2012
[ 647.663648] 0000000000000000 00000000f9176ba6 ffff8800c24c3b18
ffffffff81565fb9
[ 647.664952] 0000000000000000 0000000000000000 ffff8800c24c3b58
ffffffff810737a6
[ 647.666267] ffff8800c24c3b48 ffff88005d9820b8 ffff8800b8ed8468
0000000000000000
[ 647.667527] Call Trace:
[ 647.668794] [<ffffffff81565fb9>] dump_stack+0x4c/0x6e
[ 647.670109] [<ffffffff810737a6>] warn_slowpath_common+0x86/0xc0
[ 647.671368] [<ffffffff810738da>] warn_slowpath_null+0x1a/0x20
[ 647.672627] [<ffffffffa07d9c56>] btrfs_select_ref_head+0x116/0x130 [btrfs]
[ 647.673858] [<ffffffffa0773330>]
__btrfs_run_delayed_refs+0x250/0x1120 [btrfs]
[ 647.675099] [<ffffffffa078156e>] ? btree_set_page_dirty+0xe/0x10 [btrfs]
[ 647.676337] [<ffffffffa0778473>]
btrfs_run_delayed_refs.part.40+0x73/0x250 [btrfs]
[ 647.677492] [<ffffffffa0778d03>]
btrfs_start_dirty_block_groups+0x353/0x3f0 [btrfs]
[ 647.678594] [<ffffffffa0789b50>]
btrfs_commit_transaction+0x1d0/0xd10 [btrfs]
[ 647.679780] [<ffffffffa078a741>] ? start_transaction+0xb1/0x5d0 [btrfs]
[ 647.680935] [<ffffffffa0785113>] transaction_kthread+0x1c3/0x230 [btrfs]
[ 647.682019] [<ffffffffa0784f50>] ?
btrfs_cleanup_transaction+0x560/0x560 [btrfs]
[ 647.683130] [<ffffffff81091378>] kthread+0xd8/0xf0
[ 647.684251] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.685326] [<ffffffff8156b89f>] ret_from_fork+0x3f/0x70
[ 647.686445] [<ffffffff810912a0>] ? kthread_worker_fn+0x170/0x170
[ 647.687537] ---[ end trace 7d2de1231b57cbbf ]---
[ 650.786951] BTRFS error (device sdb): Skipping commit of aborted transaction.
[ 650.788422] BTRFS: error (device sdb) in cleanup_transaction:1710:
errno=-5 IO failure
run_one_delayed_ref returned returns EIO. What does it mean? I can do
some kernel debugging if you give me some pointer about this problem.
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