Hi,
os: Gentoo
kernel: 3.7.3 from kernel.org
2 harddisks with btrfs and Raid1, lzo compression
trying to start a virtual machine (qemu-kvm) the system crashed giving
following messages:
kernel: [177417.378526] ------------[ cut here ]------------
kernel: [177417.378562] kernel BUG at fs/btrfs/ctree.c:2950!
kernel: [177417.378579] invalid opcode: 0000 [#1] SMP
kernel: [177417.378599] Modules linked in: it87 hwmon_vid k10temp i2c_piix4
kernel: [177417.378630] CPU 2
kernel: [177417.378645] Pid: 13388, comm: qemu-system-x86 Not tainted
3.7.3-system #2 Gigabyte Technology Co., Ltd.
GA-MA790XT-UD4P/GA-MA790XT-UD4P
kernel: [177417.378673] RIP: 0010:[<ffffffff8137e278>]
[<ffffffff8137e278>] btrfs_set_item_key_safe+0x168/0x170
kernel: [177417.378708] RSP: 0018:ffff88011149d8a8 EFLAGS: 00010286
kernel: [177417.378723] RAX: 00000000ffffffff RBX: 000000000000000c RCX:
000000003e999000
kernel: [177417.378744] RDX: 00000000ffffffff RSI: ffff88011149d9d6 RDI:
ffff88011149d887
kernel: [177417.378761] RBP: ffff88011149d908 R08: 0000000000000d3d R09:
ffff88011149d8c8
kernel: [177417.378778] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8802026aaec8
kernel: [177417.378795] R13: ffff88011149d9d6 R14: ffff88011149d8c7 R15:
ffff880426c37b40
kernel: [177417.378813] FS: 00007f3e7abdb700(0000)
GS:ffff880437d00000(0000) knlGS:0000000000000000
kernel: [177417.378831] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
kernel: [177417.378846] CR2: 00007f3e3801e138 CR3: 00000001cc7dc000 CR4:
00000000000007e0
kernel: [177417.378863] DR0: 0000000000000045 DR1: 0000000000000000 DR2:
0000000000000000
kernel: [177417.378880] DR3: 0000000000000005 DR6: 00000000ffff0ff0 DR7:
0000000000000400
kernel: [177417.378898] Process qemu-system-x86 (pid: 13388, threadinfo
ffff88011149c000, task ffff8801a3053600)
kernel: [177417.378916] Stack:
kernel: [177417.378925] ffff88011149d908 ffff8804064c1800
ffff88002cbb4000 3000000000000000
kernel: [177417.378953] 6c00000000000aef 000000003e998000
ffff88011149d908 ffff880426c37b40
kernel: [177417.378981] ffff8802026aaec8 000000003e998000
0000000000000001 0000000000000000
kernel: [177417.379007] Call Trace:
kernel: [177417.379025] [<ffffffff813b17fb>]
__btrfs_drop_extents+0x58b/0xb20
kernel: [177417.379046] [<ffffffff813d25c5>]
btrfs_log_changed_extents+0x625/0x690
kernel: [177417.379066] [<ffffffff813bc2b2>] ? free_extent_buffer+0x32/0x90
kernel: [177417.379085] [<ffffffff813d45d3>] btrfs_log_inode+0x513/0x5b0
kernel: [177417.379104] [<ffffffff819f1c84>] ? __schedule+0x2a4/0x6a0
kernel: [177417.379123] [<ffffffff813d6198>]
btrfs_log_inode_parent+0x188/0x470
kernel: [177417.379142] [<ffffffff813d64bf>]
btrfs_log_dentry_safe+0x3f/0x60
kernel: [177417.379160] [<ffffffff813af2c2>] btrfs_sync_file+0x122/0x230
kernel: [177417.379181] [<ffffffff81191d70>] generic_write_sync+0x50/0x70
kernel: [177417.379198] [<ffffffff813b0886>]
btrfs_file_aio_write+0x2c6/0x490
kernel: [177417.379217] [<ffffffff810c3c4e>] ? get_futex_key+0x7e/0x250
kernel: [177417.379237] [<ffffffff8116526b>] do_sync_write+0x9b/0xe0
kernel: [177417.379255] [<ffffffff811658de>] vfs_write+0xae/0x170
kernel: [177417.379272] [<ffffffff81165d6a>] sys_pwrite64+0x9a/0xa0
kernel: [177417.379290] [<ffffffff819f3a92>] system_call_fastpath+0x16/0x1b
kernel: [177417.379305] Code: 89 d0 48 c1 e0 05 48 29 c8 b9 11 00 00 00
48 8d 54 02 65 e8 eb f0 03 00 4c 89 ee 4c 89 f7 e8 70 f2 ff ff 85 c0 0f
8f 41 ff ff ff <0f> 0b 0f 0b 0f 1f 40 00 55 48 b8 00 00 00 00 00 16 00
00 48 89
kernel: [177417.379526] RIP [<ffffffff8137e278>]
btrfs_set_item_key_safe+0x168/0x170
kernel: [177417.379547] RSP <ffff88011149d8a8>
kernel: [177417.407514] ---[ end trace 9e7b00faf79e316d ]---
trying to mount the filesystem after a restart failed with following
messages:
kernel: [ 56.481202] device label BTRFS devid 3 transid 78332 /dev/sdc
kernel: [ 56.482323] btrfs: use lzo compression
kernel: [ 56.482330] btrfs: disk space caching is enabled
kernel: [ 61.926886] btrfs: corrupt leaf, bad key order:
block=2177786388480,root=1, slot=12
kernel: [ 61.926925] ------------[ cut here ]------------
kernel: [ 61.927356] kernel BUG at fs/btrfs/tree-log.c:3832!
kernel: [ 61.927780] invalid opcode: 0000 [#1] SMP
kernel: [ 61.927787] Modules linked in: it87 hwmon_vid k10temp i2c_piix4
kernel: [ 61.927797] CPU 1
kernel: [ 61.927797] Pid: 3816, comm: mount Not tainted 3.7.3-system
#2 Gigabyte Technology Co., Ltd. GA-MA790XT-UD4P/GA-MA790XT-UD4P
kernel: [ 61.927811] RIP: 0010:[<ffffffff813d685a>]
[<ffffffff813d685a>] btrfs_recover_log_trees+0x37a/0x3e0
kernel: [ 61.927814] RSP: 0018:ffff880417625958 EFLAGS: 00010282
kernel: [ 61.927824] RAX: 00000000fffffffb RBX: ffff880426c58900 RCX:
0000000000002c6f
kernel: [ 61.927827] RDX: 0000000000002c6e RSI: ffff880426c58990 RDI:
ffffea00109b1600
kernel: [ 61.927829] RBP: ffff880417625a18 R08: 0000000000017970 R09:
ffffffff8137b295
kernel: [ 61.927831] R10: 0000000000000000 R11: 0000000000000001 R12:
0000000000000001
kernel: [ 61.927833] R13: ffff88041d8bd130 R14: ffff88041b98d800 R15:
ffff88041b98c000
kernel: [ 61.927837] FS: 00007f0500ff3740(0000)
GS:ffff880437c80000(0000) knlGS:0000000000000000
kernel: [ 61.927839] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
kernel: [ 61.927841] CR2: 00007ffffe1ad5f0 CR3: 0000000419c9a000 CR4:
00000000000007e0
kernel: [ 61.927843] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
kernel: [ 61.927846] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
kernel: [ 61.927849] Process mount (pid: 3816, threadinfo
ffff880417624000, task ffff88041a78ca40)
kernel: [ 61.927850] Stack:
kernel: [ 61.927855] ffff880415989d90 ffff88041fe2e000
0000000000000000 0000000000000000
kernel: [ 61.927858] 0000000000000000 0000000000000001
ffff88041b98a800 ffff88041d8bd130
kernel: [ 61.927862] ffffffff813d51a0 fffffffa000131fd
ffffff84ffffffff fffffaffffffffff
kernel: [ 61.927863] Call Trace:
kernel: [ 61.927871] [<ffffffff813d51a0>] ?
fixup_inode_link_counts+0x160/0x160
kernel: [ 61.927879] [<ffffffff8139e04b>] open_ctree+0x151b/0x1bd0
kernel: [ 61.927886] [<ffffffff814631b6>] ? ida_get_new_above+0x236/0x2f0
kernel: [ 61.927892] [<ffffffff81377d5d>] btrfs_mount+0x5bd/0x690
kernel: [ 61.927897] [<ffffffff8111e7d7>] ? __free_pages+0x47/0x70
kernel: [ 61.927904] [<ffffffff8141178c>] ?
selinux_sb_copy_data+0x17c/0x230
kernel: [ 61.927910] [<ffffffff8116904e>] mount_fs+0x3e/0x1b0
kernel: [ 61.927917] [<ffffffff81181a3b>] vfs_kern_mount+0x5b/0xf0
kernel: [ 61.927921] [<ffffffff81377900>] btrfs_mount+0x160/0x690
kernel: [ 61.927925] [<ffffffff8111e7d7>] ? __free_pages+0x47/0x70
kernel: [ 61.927930] [<ffffffff8141178c>] ?
selinux_sb_copy_data+0x17c/0x230
kernel: [ 61.927936] [<ffffffff8116904e>] mount_fs+0x3e/0x1b0
kernel: [ 61.927942] [<ffffffff81181a3b>] vfs_kern_mount+0x5b/0xf0
kernel: [ 61.927947] [<ffffffff8118223f>] do_kern_mount+0x4f/0x100
kernel: [ 61.927953] [<ffffffff81183b9c>] do_mount+0x19c/0x880
kernel: [ 61.927958] [<ffffffff81183885>] ? copy_mount_options+0x35/0x170
kernel: [ 61.927964] [<ffffffff8118430b>] sys_mount+0x8b/0xe0
kernel: [ 61.927970] [<ffffffff819f3a92>] system_call_fastpath+0x16/0x1b
kernel: [ 61.928006] Code: 4c 89 ef 48 8b 72 28 c7 82 10 0e 00 00 00
00 00 00 e8 1b 96 fc ff 4c 89 ff e8 53 21 d8 ff eb 84 41 bc f4 ff ff ff
e9 79 ff ff ff <0f> 0b 48 8b bd 48 ff ff ff 41 89 c4 89 c1 49 c7 c0 38
82 c0 81
kernel: [ 61.928012] RIP [<ffffffff813d685a>]
btrfs_recover_log_trees+0x37a/0x3e0
kernel: [ 61.928013] RSP <ffff880417625958>
kernel: [ 61.928033] ---[ end trace bf74eeb72ea83677 ]---
right now I copy the data with "restore" from
git://github.com/josefbacik/btrfs-progs (master)
but sometimes I get "failed to inflate: -6" and the system is idle for
several minutes.
What are your suggestions regarding the next steps in mounting the
filesystem, especially do you
suggest to keep the raid devices together or to take off one and try to
mount in degraded mode ?
Is there anything you are interested in to analyse, do you want me to
try patches?
thanks and best regards
Falk Frederich
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