Hi,
i got this message while i was running a balance, after adding the two
smaller disks.
But it seems that the Bug was triggered from a java process working on
that disk?!
After the Bug message the balance process was blocked.
There was no further process or diskload from that process.
I had to reset the system.
[ 10.072178] Btrfs loaded
[ 10.072750] device fsid 51b929a2-163f-4b47-8ac4-038670e80676 devid 3
transid 26081 /dev/sdc
[ 10.073757] btrfs: disk space caching is enabled
[ 10.074134] btrfs: failed to read the system array on sdc
[ 10.074400] btrfs: open_ctree failed
But after a manual mount everything was "fine" again:
[ 104.990461] device fsid 51b929a2-163f-4b47-8ac4-038670e80676 devid 1
transid 26081 /dev/sdb
[ 105.407555] device fsid 51b929a2-163f-4b47-8ac4-038670e80676 devid 2
transid 26081 /dev/sdd
[ 105.810686] device fsid 51b929a2-163f-4b47-8ac4-038670e80676 devid 3
transid 26081 /dev/sdc
[ 117.531293] device fsid 51b929a2-163f-4b47-8ac4-038670e80676 devid 1
transid 26081 /dev/sdb
[ 117.532602] btrfs: disk space caching is enabled
[ 120.927683] btrfs: unlinked 1 orphans
[ 120.945804] btrfs: continuing balance
[ 144.562543] btrfs: relocating block group 214777724928 flags 1
[ 149.250326] btrfs: unlinked 2 orphans
Maybe this informations can help you to make the btrfs more stable - i
really like the features :-)
Kind regards
Lars
btrfs balance start dconvert=raid1 mconvert=raid1 /data/
uname -a
Linux n40l 3.7.1 #1 SMP Mon Dec 31 09:55:24 CET 2012 x86_64 GNU/Linux
btrfs fi show
Label: none uuid: 51b929a2-163f-4b47-8ac4-038670e80676
Total devices 3 FS bytes used 2.14TB
devid 3 size 1.36TB used 1.22TB path /dev/sdc
devid 2 size 1.36TB used 1.22TB path /dev/sdd
devid 1 size 2.73TB used 1.78TB path /dev/sdb
Btrfs v0.20-rc1-37-g91d9eec
[125072.382549] btrfs: relocating block group 214777724928 flags 1
[125109.399900] btrfs: found 185 extents
[125124.476225] btrfs: found 185 extents
[125128.126892] ------------[ cut here ]------------
[125128.130251] kernel BUG at fs/btrfs/inode.c:3865!
[125128.133866] invalid opcode: 0000 [#1] SMP
[125128.137439] Modules linked in: ip6table_filter ip6_tables
ebtable_nat ebtables ipt_REJECT xt_tcpudp iptable_filter ip_tables
x_tables bridge stp llc nfsd nfs_acl auth_rpcgss nfs fscache lockd
sunrpc btrfs zlib_deflate crc32c libcrc32c ext2 loop radeon evdev ttm
drm_kms_helper drm snd_pcm snd_timer snd soundcore snd_page_alloc
amd64_edac_mod k10temp edac_core tpm_tis sp5100_tco tpm processor
i2c_piix4 i2c_algo_bit edac_mce_amd button tpm_bios pcspkr i2c_core
kvm_amd kvm shpchp thermal_sys microcode ext4 mbcache jbd2 crc16 dm_mod
sd_mod crc_t10dif ohci_hcd ahci libahci libata tg3 libphy scsi_mod
ehci_hcd usbcore usb_common
[125128.157060] CPU 0
[125128.157100] Pid: 6850, comm: java Not tainted 3.7.1 #1 HP ProLiant
MicroServer
[125128.165237] RIP: 0010:[<ffffffffa03e5e89>] [<ffffffffa03e5e89>]
btrfs_evict_inode+0x202/0x2dc [btrfs]
[125128.169520] RSP: 0018:ffff880050547df8 EFLAGS: 00010286
[125128.173785] RAX: 00000000ffffffe4 RBX: ffff88004fc7a5f8 RCX:
000000000000df3e
[125128.178091] RDX: 000000000b690b69 RSI: ffff88000f947848 RDI:
ffff88000f947890
[125128.182425] RBP: ffff880037c0f800 R08: 000000000000011a R09:
ffff88005b13c598
[125128.186756] R10: ffff88005b13c598 R11: ffff88005b13c598 R12:
ffff88005b13c598
[125128.191111] R13: ffff880073b15540 R14: 0000000000020000 R15:
ffff880072518140
[125128.195498] FS: 00007fe624bbf700(0000) GS:ffff880077c00000(0000)
knlGS:0000000000000000
[125128.199936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[125128.204367] CR2: 00007fe62b929028 CR3: 00000000747fb000 CR4:
00000000000007f0
[125128.208852] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[125128.213325] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[125128.217781] Process java (pid: 6850, threadinfo ffff880050546000,
task ffff8800131dd140)
[125128.222310] Stack:
[125128.226746] ffff880050547df0 0000000000000000 0000000000000000
ffff88004fc7a5f8
[125128.231282] ffff88004fc7a6f8 ffffffffa0428440 dead000000100100
ffff88004fc3a800
[125128.235783] ffff880074b8f890 ffffffff81123c45 ffff88004fc3a800
ffff88006bc5d0c0
[125128.240281] Call Trace:
[125128.244734] [<ffffffff81123c45>] ? evict+0xa3/0x158
[125128.249244] [<ffffffff81121c44>] ? dentry_kill+0x150/0x16e
[125128.253851] [<ffffffff811222d9>] ? dput+0xed/0xf9
[125128.258361] [<ffffffff81111d8c>] ? __fput+0x196/0x1ae
[125128.262865] [<ffffffff8105a0c7>] ? task_work_run+0x7f/0x96
[125128.267384] [<ffffffff8100f563>] ? do_notify_resume+0x56/0x67
[125128.271891] [<ffffffff8105a185>] ? task_work_add+0x47/0x4e
[125128.276405] [<ffffffff813938a2>] ? int_signal+0x12/0x17
[125128.280963] Code: ff ff 83 f8 e4 75 4f 48 8b 85 e8 01 00 00 48 89 da
48 89 ee 4c 89 e7 48 05 90 01 00 00 49 89 44 24 40 e8 cb 9f ff ff 85 c0
74 04 <0f> 0b eb fe 49 8b 44 24 28 48 89 ee 4c 89 e7 48 89 44 24 08 e8
[125128.290503] RIP [<ffffffffa03e5e89>] btrfs_evict_inode+0x202/0x2dc
[btrfs]
[125128.295170] RSP <ffff880050547df8>
[125128.316881] ---[ end trace 9a9c4f2a5cfda34a ]---
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