On Fri, Jun 20, 2014 at 08:40:49AM -0700, Josef Bacik wrote:
> On 06/19/2014 05:53 PM, Marc MERLIN wrote:
> >On Thu, Jun 19, 2014 at 03:50:16PM -0700, Josef Bacik wrote:
> >>Ok same drill as before, reset and apply this, hopefully no panic this
> >>time
> >>
> >>
> >>diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
> >>index 65245a0..bca5240 100644
> >
>
> Ok I see what it is but I want to get rid of the panicing so we're going
> to do this dance a few more times until it's just failing to mount instead
> of panicing, and then we'll fix the actual bug. Give this a whirl, and
> I've added another printk just to make sure what I think is happening is
> actually what's happening, so same drill as before. Thanks,
Patch applied. The panic moved :)
[ 313.756971] BTRFS: device label btrfs_pool2 devid 1 transid 254006 /dev/sda1
[ 313.757467] BTRFS info (device sda1): disk space caching is enabled
[ 313.835538] BTRFS: detected SSD devices, enabling SSD mode
[ 313.932327] BTRFS info (device sda1): continuing balance
[ 313.990048] BTRFS info (device sda1): relocating block group 82699091968
flags 1
[ 316.085055] BTRFS info (device sda1): found 3719 extents
[ 317.797058] running build_backref_tree
[ 317.797075] building backref for bytenr 73005293568 level 0
[ 317.797090] eb in path 173444124672, level 1, cowonly 0, owner 256, gen
231481, last snap 243545, reloc 0, root 256
[ 317.797097] is shared, need_check 1
[ 317.797104] eb in path 67327229952, level 2, cowonly 0, owner 256, gen
243615, last snap 243545, reloc 0, root 256
[ 317.797109] isn't shared, need_check 0
[ 317.797117] eb in path 2176913408, level 3, cowonly 0, owner 256, gen
253956, last snap 243545, reloc 1, root 256
[ 317.797122] is shared, need_check 0
[ 317.797129] eb in path 2320281600, level 4, cowonly 0, owner 256, gen
253957, last snap 243545, reloc 0, root 256
[ 317.797134] isn't shared, need_check 0
[ 317.797139] doing the checking for block 173444124672
[ 317.797144] building backref for bytenr 173444124672 level 1
[ 317.797562] exist is 67327229952, checked 1
[ 317.797571] exist is fucking us, bytenr 67327229952, type 176
[ 317.797578] found shared ref 173244198912, needs checking
[ 317.797583] doing the checking for block 173244198912
[ 317.797588] building backref for bytenr 173244198912 level 2
[ 317.798242] found shared ref 2177122304, needs checking
[ 317.798251] found shared ref 2177081344, needs checking
[ 317.798257] found shared ref 2176827392, needs checking
[ 317.798263] doing the checking for block 2177122304
[ 317.798268] building backref for bytenr 2177122304 level 3
[ 317.798779] eb in path 2314657792, level 4, cowonly 0, owner 6125, gen
253957, last snap 243545, reloc 0, root 6125
[ 317.798787] isn't shared, need_check 1
[ 317.798798] doing the checking for block 2177081344
[ 317.798804] building backref for bytenr 2177081344 level 3
[ 317.798962] eb in path 2320146432, level 4, cowonly 0, owner 6123, gen
253957, last snap 243338, reloc 0, root 6123
[ 317.798970] isn't shared, need_check 1
[ 317.798976] doing the checking for block 2176827392
[ 317.798981] building backref for bytenr 2176827392 level 3
[ 317.799144] eb in path 2320363520, level 4, cowonly 0, owner 6124, gen
253957, last snap 243441, reloc 0, root 6124
[ 317.799151] isn't shared, need_check 1
[ 317.799158] block 2176913408 wasn't checked
[ 317.799162] done building backref tree
[ 317.799193] general protection fault: 0000 [#1] PREEMPT SMP
[ 317.799207] Modules linked in: xt_NFLOG xt_tcpudp xt_comment xt_multiport
ip6table_filter ip6_tables iptable_filter ip_tables x_tables nfnetlink_log
nfnetlink fuse autofs4 rfcomm bnep bluetooth 6lowpan_iphc rfkill binfmt_misc
snd_hda_codec_hdmi snd_hda_codec_analog snd_hda_codec_generic intel_powerclamp
coretemp kvm_intel kvm snd_hda_intel snd_hda_controller snd_hda_codec
crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel
ehci_pci snd_hwdep rpcsec_gss_krb5 snd_pcm_oss snd_mixer_oss snd_pcm nfsd
auth_rpcgss snd_seq_midi snd_seq_midi_event nfs_acl snd_rawmidi nfs lockd
sunrpc snd_seq snd_seq_device ppdev aes_x86_64 ehci_hcd snd_timer lrw
parport_pc dcdbas i7core_edac lp gf128mul gpio_ich dell_wmi parport snd
edac_core acpi_cpufreq soundcore lpc_ich processor loop glue_helper tpm_tis tpm
sparse_keymap wmi psmouse serio_raw joydev ablk_helper cryptd evdev fscache
microcode hid_generic usbhid hid sr_mod cdrom dm_mod tg3 libphy ptp pps_core
uhci_hcd usbcore usb_common
[ 317.799543] CPU: 1 PID: 4903 Comm: btrfs-balance Not tainted
3.15.1-amd64-i915-preempt-20140216jbp4 #1
[ 317.799548] Hardware name: Dell Inc. Precision WorkStation T3500 /09KPNV,
BIOS A10 01/21/2011
[ 317.799555] task: ffff8805abd56450 ti: ffff8805abd58000 task.ti:
ffff8805abd58000
[ 317.799560] RIP: 0010:[<ffffffff81265654>] [<ffffffff81265654>]
list_del+0x8/0x2f
[ 317.799573] RSP: 0018:ffff8805abd5bc00 EFLAGS: 00010287
[ 317.799579] RAX: dead000000200200 RBX: ffff8805abfb1640 RCX: ffff8805f57b88e8
[ 317.799584] RDX: dead000000100100 RSI: ffff8805f6d83940 RDI: ffff8805abff8750
[ 317.799589] RBP: ffff8805abd5bc40 R08: 0000000000000000 R09: 0000000000000000
[ 317.799594] R10: 00000000ffffffff R11: 0000000000000000 R12: ffff8805f6d83940
[ 317.799599] R13: ffff8805f57b8820 R14: ffff8805abff8740 R15: ffff8805f6d83980
[ 317.799605] FS: 0000000000000000(0000) GS:ffff880617220000(0000)
knlGS:0000000000000000
[ 317.799610] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 317.799615] CR2: 00007f644026f000 CR3: 0000000001c13000 CR4: 00000000000007e0
[ 317.799621] Stack:
[ 317.799625] ffff8805abd5bc40 ffffffff81268c9d ffff8805f57b8924
ffff8805ba7f86e0
[ 317.799643] ffff8805f57b8908 ffff8805f57b88e8 00000000ffffffea
ffff8805f57b8800
[ 317.799659] ffff8805abd5bcb8 ffffffff8126af28 ffff8805f57b8820
00000001138d93a8
[ 317.799674] Call Trace:
[ 317.799683] [<ffffffff81268c9d>] ? remove_backref_node+0x4c/0xd5
[ 317.799690] [<ffffffff8126af28>] relocate_block_group+0x390/0x49a
[ 317.799698] [<ffffffff8126b18d>] btrfs_relocate_block_group+0x15b/0x26d
[ 317.799706] [<ffffffff81249b80>] btrfs_relocate_chunk.isra.23+0x5c/0x5e8
[ 317.799715] [<ffffffff8161fc1b>] ? _raw_spin_unlock+0x17/0x2a
[ 317.799722] [<ffffffff812458cc>] ? free_extent_buffer+0x8a/0x8d
[ 317.799729] [<ffffffff8124c406>] btrfs_balance+0x9b6/0xb74
[ 317.799737] [<ffffffff816167cd>] ? printk+0x54/0x56
[ 317.799745] [<ffffffff8124c5c4>] ? btrfs_balance+0xb74/0xb74
[ 317.799752] [<ffffffff8124c61d>] balance_kthread+0x59/0x7b
[ 317.799759] [<ffffffff8106b4b4>] kthread+0xae/0xb6
[ 317.799765] [<ffffffff8106b406>] ? __kthread_parkme+0x61/0x61
[ 317.799774] [<ffffffff8162677c>] ret_from_fork+0x7c/0xb0
[ 317.799780] [<ffffffff8106b406>] ? __kthread_parkme+0x61/0x61
[ 317.799785] Code: 00 00 00 48 c7 c7 fd 89 aa 81 e8 ad 41 eb ff 48 85 c0 48
89 05 6e 6b cb 00 0f 84 7b ff ff ff 31 c0 5d c3 48 8b 47 08 48 8b 17 55 <48> 89
42 08 48 89 10 48 b8 00 01 10 00 00 00 ad de 48 89 07 48
[ 317.799984] RIP [<ffffffff81265654>] list_del+0x8/0x2f
[ 317.799994] RSP <ffff8805abd5bc00>
[ 317.800032] ---[ end trace a9b76875452f420d ]---
[ 317.800039] Kernel panic - not syncing: Fatal exception
[ 317.800181] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range:
0xffffffff80000000-0xffffffff9fffffff)
[ 317.800187] ---[ end Kernel panic - not syncing: Fatal exception
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
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