Server: 2.1.19 on Ubuntu 16.04 (Kernel 4.8.0-46) guest on KVM raw image also on BTRFS (CoW disable for the disk)
Client: 2.1.15
This is not directly na urBackup problem (I think ).
But I think that a lot of you guys use BTRFS as backup storage location.
My disk with the backup storage location on it got the following error:
[ 192.930279] BTRFS error (device sdb): parent transid verify failed on 2261007073280 wanted 13181 found 13676
[ 192.930549] BTRFS error (device sdb): parent transid verify failed on 2261007073280 wanted 13181 found 13676
[ 192.930650] BTRFS warning (device sdb): Skipping commit of aborted transaction.
[ 192.930652] ------------[ cut here ]------------
[ 192.930709] WARNING: CPU: 0 PID: 1579 at /build/linux-hwe-f8QJ3c/linux-hwe-4.8.0/fs/btrfs/transaction.c:1854 cleanup_transaction+0x8e/0x2f0 [btrfs]
[ 192.930710] BTRFS: Transaction aborted (error -5)
[ 192.930711] Modules linked in: ppdev input_leds joydev serio_raw parport_pc parport ib_iser rdma_cm iw_cm ib_cm ib_core configfs iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear psmouse virtio_scsi ahci libahci virtio_net
[ 192.930737] CPU: 0 PID: 1579 Comm: btrfs Not tainted 4.8.0-46-generic #49~16.04.1-Ubuntu
[ 192.930738] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.10.2-20170228_101828-anatol 04/01/2014
[ 192.930740] 0000000000000286 0000000084d1f81f ffff917d4dec3ab0 ffffffffbc22e073
[ 192.930743] ffff917d4dec3b00 0000000000000000 ffff917d4dec3af0 ffffffffbbe8313b
[ 192.930745] 0000073ec058a6c6 ffff917d37250510 ffff917d7a16e000 ffff917d7c70d1e0
[ 192.930747] Call Trace:
[ 192.930753] [] dump_stack+0x63/0x90
[ 192.930756] [] __warn+0xcb/0xf0
[ 192.930758] [] warn_slowpath_fmt+0x5f/0x80
[ 192.930774] [] cleanup_transaction+0x8e/0x2f0 [btrfs]
[ 192.930776] [] ? wake_atomic_t_function+0x60/0x60
[ 192.930778] [] ? __wake_up+0x44/0x50
[ 192.930793] [] btrfs_commit_transaction+0x2e0/0xb00 [btrfs]
[ 192.930809] [] ? start_transaction+0x9e/0x4c0 [btrfs]
[ 192.930826] [] btrfs_mksubvol+0x57f/0x590 [btrfs]
[ 192.930828] [] ? wake_atomic_t_function+0x60/0x60
[ 192.930845] [] btrfs_ioctl_snap_create_transid+0x192/0x1a0 [btrfs]
[ 192.930862] [] btrfs_ioctl_snap_create_v2+0x125/0x170 [btrfs]
[ 192.930879] [] btrfs_ioctl+0x659/0x2010 [btrfs]
[ 192.930882] [] ? handle_mm_fault+0xdaa/0x1410
[ 192.930885] [] do_vfs_ioctl+0xa1/0x5f0
[ 192.930888] [] ? __do_page_fault+0x265/0x4e0
[ 192.930890] [] SyS_ioctl+0x79/0x90
[ 192.930893] [] entry_SYSCALL_64_fastpath+0x1e/0xa8
[ 192.930895] —[ end trace abf789c354e24c9a ]—
[ 192.930897] BTRFS: error (device sdb) in cleanup_transaction:1854: errno=-5 IO failure
[ 192.930985] BTRFS info (device sdb): forced readonly
[ 207.163991] BTRFS error (device sdb): parent transid verify failed on 2261033762816 wanted 13184 found 13680
[ 207.167882] BTRFS error (device sdb): parent transid verify failed on 2261033762816 wanted 13184 found 13680
I tried some of the proposed troubleshooting tips, but they didn’t help if not made it worse (not that I didn’t thought this possible ) I still have the problem, but other error messages.
My question to the community is what are your BTRFS troubleshooting tips for this and other BTRFS issues?
Thanks for your inputs.