On 8/4/13 6:58 PM, Alfredo Esteban wrote: > I tried to unmount a btrfs filesystem located in a external usb hard > drive. This belonged to a raid1 data and metadata filesystem mounted > in degraded mode. > > Unfortunately, I couldn't save the image of filesystem but I could see > this error in kern.log: > > Aug 4 02:23:55 rohan kernel: [ 3747.840027] usb 1-3: new high-speed > USB device number 8 using ehci_hcd > Aug 4 02:23:55 rohan kernel: [ 3747.973554] usb-storage 1-3:1.0: > Quirks match for vid 14cd pid 6600: 20 > Aug 4 02:23:55 rohan kernel: [ 3747.973584] scsi8 : usb-storage 1-3:1.0 > Aug 4 02:23:56 rohan kernel: [ 3748.972895] scsi 8:0:0:0: > Direct-Access ST316002 1A PQ: 0 ANSI: 0 > Aug 4 02:23:56 rohan kernel: [ 3748.973642] sd 8:0:0:0: Attached scsi > generic sg9 type 0 > Aug 4 02:23:56 rohan kernel: [ 3748.974408] sd 8:0:0:0: [sdi] > 312581808 512-byte logical blocks: (160 GB/149 GiB) > Aug 4 02:23:56 rohan kernel: [ 3748.975660] sd 8:0:0:0: [sdi] Write > Protect is off > Aug 4 02:23:56 rohan kernel: [ 3748.975664] sd 8:0:0:0: [sdi] Mode > Sense: 03 00 00 00 > Aug 4 02:23:56 rohan kernel: [ 3748.976262] sd 8:0:0:0: [sdi] No > Caching mode page present > Aug 4 02:23:56 rohan kernel: [ 3748.976266] sd 8:0:0:0: [sdi] > Assuming drive cache: write through > Aug 4 02:23:56 rohan kernel: [ 3748.978006] sd 8:0:0:0: [sdi] No > Caching mode page present > Aug 4 02:23:56 rohan kernel: [ 3748.978009] sd 8:0:0:0: [sdi] > Assuming drive cache: write through > Aug 4 02:23:56 rohan kernel: [ 3748.998148] sdi: sdi1 > Aug 4 02:23:56 rohan kernel: [ 3749.000138] sd 8:0:0:0: [sdi] No > Caching mode page present > Aug 4 02:23:56 rohan kernel: [ 3749.000142] sd 8:0:0:0: [sdi] > Assuming drive cache: write through > Aug 4 02:23:56 rohan kernel: [ 3749.000146] sd 8:0:0:0: [sdi] > Attached SCSI disk > Aug 4 02:24:26 rohan kernel: [ 3778.904274] device fsid > ab74ba21-3b11-42f1-b388-f3a7c059e7eb devid 1 transid 9 /dev/sdi1 > Aug 4 02:24:26 rohan kernel: [ 3778.924259] btrfs: disk space caching > is enabled > Aug 4 02:25:36 rohan kernel: [ 3849.110130] btrfs: space cache > generation (8) does not match inode (12) > Aug 4 02:25:36 rohan kernel: [ 3849.110138] btrfs: failed to load > free space cache for block group 29360128 > Aug 4 02:26:06 rohan kernel: [ 3878.947113] parent transid verify > failed on 30580736 wanted 12 found 8 > Aug 4 02:26:06 rohan kernel: [ 3878.947120] parent transid verify > failed on 30580736 wanted 12 found 8 > Aug 4 02:26:06 rohan kernel: [ 3878.947124] parent transid verify > failed on 30580736 wanted 12 found 8 > Aug 4 02:26:06 rohan kernel: [ 3878.947129] parent transid verify > failed on 30580736 wanted 12 found 8 > Aug 4 02:26:06 rohan kernel: [ 3878.947132] parent transid verify > failed on 30580736 wanted 12 found 8 > Aug 4 02:26:06 rohan kernel: [ 3878.947156] ------------[ cut here > ]------------ > Aug 4 02:26:06 rohan kernel: [ 3878.947184] kernel BUG at > /build/buildd/linux-3.2.0/fs/btrfs/inode.c:806! This is against the 3.2 kernel, which is now 19 months old and ancient in terms of btrfs support. Please see if you can reproduce with a more recent kernel. Otherwise, file a bug report with Ubuntu if they are doing substantial btrfs backports. -Jeff > Aug 4 02:26:06 rohan kernel: [ 3878.947216] invalid opcode: 0000 [#1] SMP > Aug 4 02:26:06 rohan kernel: [ 3878.947238] CPU 1 > Aug 4 02:26:06 rohan kernel: [ 3878.947248] Modules linked in: btrfs > zlib_deflate libcrc32c pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) > vboxdrv(O) xt_recent xt_state xt_tcpudp iptable_nat nf_nat > nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables > x_tables rfcomm bnep bluetooth parport_pc ppdev binfmt_misc dm_crypt > snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm > snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer > snd_seq_device snd asus_atk0110 psmouse soundcore snd_page_alloc > serio_raw lp parport mac_hid usbhid hid usb_storage i915 r8169 > drm_kms_helper drm i2c_algo_bit video > Aug 4 02:26:06 rohan kernel: [ 3878.947556] > Aug 4 02:26:06 rohan kernel: [ 3878.947566] Pid: 4629, comm: > btrfs-transacti Tainted: G O 3.2.0-51-generic #77-Ubuntu > System manufacturer System Product Name/P5KPL-AM SE > Aug 4 02:26:06 rohan kernel: [ 3878.947628] RIP: > 0010:[<ffffffffa050c538>] [<ffffffffa050c538>] > cow_file_range+0x388/0x3a0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.947687] RSP: > 0018:ffff880061bfd6a0 EFLAGS: 00010246 > Aug 4 02:26:06 rohan kernel: [ 3878.947712] RAX: ffff8800d8ede000 > RBX: 0000000000000000 RCX: 000000000000ffff > Aug 4 02:26:06 rohan kernel: [ 3878.947743] RDX: ffff8800d6fcf000 > RSI: ffffea00044892c0 RDI: ffff88007aa08910 > Aug 4 02:26:06 rohan kernel: [ 3878.947775] RBP: ffff880061bfd760 > R08: ffff880061bfd94c R09: ffff880061bfd940 > Aug 4 02:26:06 rohan kernel: [ 3878.947807] R10: 0000000000000002 > R11: 0000000000000001 R12: ffff88007aa08910 > Aug 4 02:26:06 rohan kernel: [ 3878.947839] R13: 0000000000001000 > R14: 000000000000ffff R15: ffff88007aa08780 > Aug 4 02:26:06 rohan kernel: [ 3878.947871] FS: > 0000000000000000(0000) GS:ffff88011fc80000(0000) > knlGS:0000000000000000 > Aug 4 02:26:06 rohan kernel: [ 3878.947907] CS: 0010 DS: 0000 ES: > 0000 CR0: 000000008005003b > Aug 4 02:26:06 rohan kernel: [ 3878.947933] CR2: 00007ff051357019 > CR3: 00000000d9913000 CR4: 00000000000406e0 > Aug 4 02:26:06 rohan kernel: [ 3878.947965] DR0: 0000000000000000 > DR1: 0000000000000000 DR2: 0000000000000000 > Aug 4 02:26:06 rohan kernel: [ 3878.949197] DR3: 0000000000000000 > DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Aug 4 02:26:06 rohan kernel: [ 3878.950413] Process btrfs-transacti > (pid: 4629, threadinfo ffff880061bfc000, task ffff8800d10fae00) > Aug 4 02:26:06 rohan kernel: [ 3878.951105] Stack: > Aug 4 02:26:06 rohan kernel: [ 3878.951105] ffff880061bfd6b0 > ffff880075553948 0000000000000286 ffff880061bfd6d0 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] 0000000000000286 > ffff880075553948 ffff880061bfd710 ffffea00044892c0 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] 0080ffffffffffff > ffff8800d6fcf000 ffff88006a53f2d0 ffff880061bfd94c > Aug 4 02:26:06 rohan kernel: [ 3878.951105] Call Trace: > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa0533120>] ? > btrfs_tree_read_unlock_blocking+0x40/0x60 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa050c8e7>] > run_delalloc_nocow+0x397/0x7a0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa050cd47>] > run_delalloc_range+0x57/0x80 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa052303d>] > __extent_writepage+0x5bd/0x700 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8131443d>] ? > radix_tree_gang_lookup_tag_slot+0x8d/0xd0 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa0523442>] > extent_write_cache_pages.isra.21.constprop.31+0x2c2/0x3e0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa05237a5>] > extent_writepages+0x45/0x60 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa05085d0>] ? > btrfs_read_locked_inode+0x390/0x390 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa051fade>] ? > clear_extent_bit+0x1ce/0x3f0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa0506ff8>] > btrfs_writepages+0x28/0x30 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff811245c1>] > do_writepages+0x21/0x40 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8111a8bb>] > __filemap_fdatawrite_range+0x5b/0x60 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8111b2af>] > filemap_fdatawrite+0x1f/0x30 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8111b2f5>] > filemap_write_and_wait+0x35/0x60 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa053ad2f>] > __btrfs_write_out_cache+0x6cf/0x950 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff816606be>] ? > _raw_spin_lock+0xe/0x20 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa053b069>] > btrfs_write_out_cache+0xb9/0xf0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa04f4424>] > btrfs_write_dirty_block_groups+0x224/0x280 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa0502b62>] > update_cowonly_root+0x42/0xd0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa0502cac>] > commit_cowonly_roots+0xbc/0x100 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa050448f>] > btrfs_commit_transaction+0x3bf/0x840 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8108c230>] ? > add_wait_queue+0x60/0x60 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa04fd3b5>] > transaction_kthread+0x265/0x280 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa04fd150>] ? > btrfs_congested_fn+0xb0/0xb0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8108b78c>] > kthread+0x8c/0xa0 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8166ae74>] > kernel_thread_helper+0x4/0x10 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8108b700>] ? > flush_kthread_worker+0xa0/0xa0 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8166ae70>] ? > gs_change+0x13/0x13 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] Code: 10 c7 02 01 00 00 > 00 e9 4a ff ff ff 48 8b 7d 80 4c 89 e6 4c 89 95 68 ff ff ff e8 d4 6f > 00 00 4c 8b 95 68 ff ff ff e9 4c fd ff ff <0f> 0b 0f 0b 0f 0b 0f 0b 0f > 0b 0f 0b 66 66 66 2e 0f 1f 84 00 00 > Aug 4 02:26:06 rohan kernel: [ 3878.951105] RIP [<ffffffffa050c538>] > cow_file_range+0x388/0x3a0 [btrfs] > Aug 4 02:26:06 rohan kernel: [ 3878.951105] RSP <ffff880061bfd6a0> > Aug 4 02:26:06 rohan kernel: [ 3879.008489] ---[ end trace > 6751139acfeba416 ]--- > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Jeff Mahoney SUSE Labs
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