Re: [bcachefs][tier] kernel BUG at drivers/md/bcache/super.c:1561! after double changing state of device
From: Marcin Mirosław <hidden>
Date: 2016-08-25 11:46:56
W dniu 25.08.2016 o 13:04, Marcin Mirosław pisze:
And now I've got data corruption: # md5sum * md5sum: gentoo: Jest katalogiem md5sum: proxmox-ve_3.1-93bf03d4-8.iso: Błąd wejścia/wyjścia /* in english: IO error */ dmesg: [ 1857.151644] bcache (181708b5-8f1d-4533-bad9-c3ebfea4db0c): IO error on dm-10 for checksum error [ 1857.349356] bcache (181708b5-8f1d-4533-bad9-c3ebfea4db0c): IO error on dm-10 for checksum error
# umount /mnt/test hangs forever. I issued # echo t >/proc/sysrq-trigger [...] Aug 25 13:42:11 localhost kernel: [ 4321.952551] umount D ffff8800cf5cbce8 0 2620 20218 0x00000000 Aug 25 13:42:11 localhost kernel: [ 4321.952555] ffff8800cf5cbce8 ffff8800cf5cbcf8 ffff88014a1a0000 ffff8800a0899b40 Aug 25 13:42:11 localhost kernel: [ 4321.952558] ffff880149868000 ffff8800cf5cc000 ffff8800cf5cbe20 ffff8800cf5cbe18 Aug 25 13:42:11 localhost kernel: [ 4321.952562] ffff8800a0899b40 ffff8800a089a238 ffff8800cf5cbd00 ffffffff8156fcea Aug 25 13:42:11 localhost kernel: [ 4321.952566] Call Trace: Aug 25 13:42:11 localhost kernel: [ 4321.952568] [<ffffffff8156fcea>] schedule+0x3a/0x90 Aug 25 13:42:11 localhost kernel: [ 4321.952571] [<ffffffff81572f93>] schedule_timeout+0x1b3/0x280 Aug 25 13:42:11 localhost kernel: [ 4321.952573] [<ffffffff8157001f>] ? preempt_schedule+0x1f/0x30 Aug 25 13:42:11 localhost kernel: [ 4321.952576] [<ffffffff81002016>] ? ___preempt_schedule+0x16/0x18 Aug 25 13:42:11 localhost kernel: [ 4321.952579] [<ffffffff815711f5>] wait_for_completion+0xd5/0x110 Aug 25 13:42:11 localhost kernel: [ 4321.952581] [<ffffffff81082760>] ? wake_up_q+0x70/0x70 Aug 25 13:42:11 localhost kernel: [ 4321.952597] [<ffffffffc0938c40>] bch_kill_sb+0x90/0xa0 [bcache] Aug 25 13:42:11 localhost kernel: [ 4321.952600] [<ffffffff811921ae>] deactivate_locked_super+0x3e/0x70 Aug 25 13:42:11 localhost kernel: [ 4321.952602] [<ffffffff81192647>] deactivate_super+0x57/0x60 Aug 25 13:42:11 localhost kernel: [ 4321.952605] [<ffffffff811af9ea>] cleanup_mnt+0x3a/0x80 Aug 25 13:42:11 localhost kernel: [ 4321.952607] [<ffffffff811afa6d>] __cleanup_mnt+0xd/0x10 Aug 25 13:42:11 localhost kernel: [ 4321.952609] [<ffffffff8107609c>] task_work_run+0x7c/0xa0 Aug 25 13:42:11 localhost kernel: [ 4321.952612] [<ffffffff810022ef>] exit_to_usermode_loop+0x9f/0xb0 Aug 25 13:42:11 localhost kernel: [ 4321.952615] [<ffffffff81002b78>] syscall_return_slowpath+0x48/0x60 Aug 25 13:42:11 localhost kernel: [ 4321.952618] [<ffffffff81574399>] entry_SYSCALL_64_fastpath+0x91/0x93