Hi All I've been using btrfs for some time already however recently the filesystem got corrupted somehow. Currently when I try to mount the filesystem the following error message is displayed and after few seconds system freezes completely:
[ 250.620511] ------------[ cut here ]------------ [ 250.620525] kernel BUG at /home/kernel-ppa/COD/linux/fs/btrfs/extent-tree.c:1418! [ 250.620532] invalid opcode: 0000 [#1] SMP [ 250.620540] last sysfs file: /sys/devices/virtual/bdi/btrfs-2/uevent [ 250.620545] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat binfmt_misc vboxnetadp vboxnetflt vboxdrv nfsd lockd nfs_acl auth_rpcgss sunrpc kvm_amd kvm snd_hda_codec_hdmi snd_hda_codec_analog arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq p54usb p54common snd_timer snd_seq_device crc_ccitt mac80211 nv_tco snd ppdev soundcore cfg80211 snd_page_alloc parport_pc psmouse lp asus_atk0110 serio_raw i2c_nforce2 k8temp parport usb_storage usbhid hid uas pata_amd forcedeth sata_nv dmfe raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear btrfs zlib_deflate libcrc32c [ 250.620648] [ 250.620654] Pid: 2402, comm: mount Not tainted 2.6.39-999-generic #201105161320 System manufacturer System Product Name/M2NPV-VM [ 250.620668] EIP: 0060:[<f80fffbd>] EFLAGS: 00010202 CPU: 0 [ 250.620716] EIP is at lookup_inline_extent_backref+0x46d/0x490 [btrfs] [ 250.620723] EAX: 00000001 EBX: 00000001 ECX: f376e000 EDX: 00000002 [ 250.620729] ESI: f6b7d030 EDI: f376e000 EBP: f1e33a30 ESP: f1e339c4 [ 250.620736] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 250.620743] Process mount (pid: 2402, ti=f1e32000 task=f1cc8ca0 task.ti=f1e32000) [ 250.620749] Stack: [ 250.620752] f376e000 ffffffff 00000001 00000000 f72dc098 f72dc07c f1017e18 f376e000 [ 250.620766] f1e12000 078f3fff 00000000 f1017e28 078f3fff 00000000 00000000 ffffffff [ 250.620779] f813491a 000000b0 00000000 00001001 0004a060 a8000000 00001000 00000000 [ 250.620793] Call Trace: [ 250.620855] [<f813491a>] ? set_extent_dirty+0x4a/0x60 [btrfs] [ 250.620904] [<f8100359>] lookup_extent_backref+0x89/0x150 [btrfs] [ 250.620952] [<f81032f1>] __btrfs_free_extent+0xc1/0x700 [btrfs] [ 250.621002] [<f8103b23>] run_delayed_tree_ref+0x1f3/0x200 [btrfs] [ 250.621050] [<f8103d94>] run_one_delayed_ref+0x54/0xf0 [btrfs] [ 250.621098] [<f8103ecc>] run_clustered_refs+0x9c/0x1e0 [btrfs] [ 250.621147] [<f81040ba>] btrfs_run_delayed_refs+0xaa/0x1d0 [btrfs] [ 250.621200] [<f8111aa9>] btrfs_should_end_transaction+0x69/0x70 [btrfs] [ 250.621248] [<f81043b3>] btrfs_drop_snapshot+0x1d3/0x540 [btrfs] [ 250.621307] [<f8158789>] merge_reloc_roots+0xa9/0x120 [btrfs] [ 250.621367] [<f815a8cd>] btrfs_recover_relocation+0x32d/0x3c0 [btrfs] [ 250.621421] [<f8110bf8>] open_ctree+0x12f8/0x1460 [btrfs] [ 250.621471] [<f810d410>] ? btree_writepage+0x110/0x110 [btrfs] [ 250.621493] [<c1150001>] ? get_source+0x51/0x80 [ 250.621505] [<c12846ed>] ? snprintf+0x1d/0x20 [ 250.621545] [<f80ed72c>] btrfs_fill_super+0x5c/0x110 [btrfs] [ 250.621553] [<c1281dc9>] ? strlcpy+0x39/0x50 [ 250.621596] [<f80f0fe3>] btrfs_mount+0x2e3/0x360 [btrfs] [ 250.621620] [<c113082e>] mount_fs+0x3e/0x170 [ 250.621641] [<c114768c>] vfs_kern_mount+0x4c/0x90 [ 250.621656] [<c114833e>] do_kern_mount+0x3e/0x80 [ 250.621663] [<c1149765>] do_new_mount+0x55/0x80 [ 250.621670] [<c1149a38>] do_mount+0x188/0x1a0 [ 250.621678] [<c1149abd>] sys_mount+0x6d/0xa0 [ 250.621689] [<c152fe5f>] sysenter_do_call+0x12/0x28 [ 250.621694] Code: 87 1f ff ff ff 39 c6 8d b4 26 00 00 00 00 0f 82 09 fe ff ff e9 0b ff ff ff bb f5 ff ff ff e9 7a fe ff ff 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 31 db e9 58 fe ff ff ba b0 05 00 00 b8 50 fd 15 f8 [ 250.621765] EIP: [<f80fffbd>] lookup_inline_extent_backref+0x46d/0x490 [btrfs] SS:ESP 0068:f1e339c4 [ 250.621811] ---[ end trace 107ba8e4b5f4d7fb ]--- Let me know if you need any additional information. Regards Maciek -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
