Hi, after quiet two months , another crash, trace is same as before. There are no XFS lines before this, kern.log goes back to 23. april. May 24 12:05:12 vps2 kernel: [3729926.243353] XFS (dm-2): Metadata corruption detected at xfs_attr3_leaf_write_verify+0xe8/0x100 [xfs], xfs_attr3_leaf block 0x171c60c0 May 24 12:05:12 vps2 kernel: [3729926.247586] XFS (dm-2): Unmount and run xfs_repair May 24 12:05:12 vps2 kernel: [3729926.249022] XFS (dm-2): First 64 bytes of corrupted metadata buffer: May 24 12:05:12 vps2 kernel: [3729926.250424] ffff9fbb1d73a000: 00 00 00 00 00 00 00 00 fb ee 00 00 00 00 00 00 ................ May 24 12:05:12 vps2 kernel: [3729926.251870] ffff9fbb1d73a010: 10 00 00 00 00 20 0f e0 00 00 00 00 00 00 00 00 ..... .......... May 24 12:05:12 vps2 kernel: [3729926.253412] ffff9fbb1d73a020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ May 24 12:05:12 vps2 kernel: [3729926.254941] ffff9fbb1d73a030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ May 24 12:05:12 vps2 kernel: [3729926.256478] CPU: 1 PID: 454 Comm: xfsaild/dm-2 Tainted: G E 4.9.0-0.bpo.2-amd64 #1 Debian 4.9.13-1~bpo8+1 May 24 12:05:12 vps2 kernel: [3729926.256480] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/14/2014 May 24 12:05:12 vps2 kernel: [3729926.256483] 0000000000000000 ffffffffb1329cd5 ffff9fba7f543ac0 ffff9fb9cb6ca5a0 May 24 12:05:12 vps2 kernel: [3729926.256488] ffffffffc06b4a58 0000000000000000 0000000004772296 0000000000000000 May 24 12:05:12 vps2 kernel: [3729926.256492] ffffab7701f7bd40 ffffffffc06ff997 ffff9fbb830dbac0 ffffffffc06fdcc4 May 24 12:05:12 vps2 kernel: [3729926.256495] Call Trace: May 24 12:05:12 vps2 kernel: [3729926.256505] [<ffffffffb1329cd5>] ? dump_stack+0x5c/0x77 May 24 12:05:12 vps2 kernel: [3729926.256585] [<ffffffffc06b4a58>] ? xfs_attr3_leaf_write_verify+0xe8/0x100 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256645] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256712] [<ffffffffc06fdcc4>] ? _xfs_buf_ioapply+0x84/0x450 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256719] [<ffffffffb10a2b30>] ? wake_up_q+0x60/0x60 May 24 12:05:12 vps2 kernel: [3729926.256781] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256845] [<ffffffffc06ff6d7>] ? xfs_buf_submit+0x67/0x1f0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256911] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.256975] [<ffffffffc073177b>] ? xfsaild+0x2cb/0x7b0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.257038] [<ffffffffc06ff365>] ? xfs_buf_unlock+0x15/0x70 [xfs] May 24 12:05:12 vps2 kernel: [3729926.257105] [<ffffffffc073177b>] ? xfsaild+0x2cb/0x7b0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.257174] [<ffffffffc07314b0>] ? xfs_trans_ail_cursor_first+0x80/0x80 [xfs] May 24 12:05:12 vps2 kernel: [3729926.257182] [<ffffffffb10974c0>] ? kthread+0xe0/0x100 May 24 12:05:12 vps2 kernel: [3729926.257186] [<ffffffffb102476b>] ? __switch_to+0x2bb/0x700 May 24 12:05:12 vps2 kernel: [3729926.257189] [<ffffffffb10973e0>] ? kthread_park+0x60/0x60 May 24 12:05:12 vps2 kernel: [3729926.257194] [<ffffffffb15fb675>] ? ret_from_fork+0x25/0x30 May 24 12:05:12 vps2 kernel: [3729926.257201] XFS (dm-2): xfs_do_force_shutdown(0x8) called from line 1323 of file /home/zumbi/linux-4.9.13/fs/xfs/xfs_buf.c. Return address = 0xffffffffc06fe084 May 24 12:05:12 vps2 kernel: [3729926.260093] XFS (dm-2): Corruption of in-memory data detected. Shutting down filesystem May 24 12:05:12 vps2 kernel: [3729926.262115] CPU: 1 PID: 454 Comm: xfsaild/dm-2 Tainted: G E 4.9.0-0.bpo.2-amd64 #1 Debian 4.9.13-1~bpo8+1 May 24 12:05:12 vps2 kernel: [3729926.262117] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/14/2014 May 24 12:05:12 vps2 kernel: [3729926.262120] 0000000000000000 ffffffffb1329cd5 0000000000000008 ffff9fbc275f3000 May 24 12:05:12 vps2 kernel: [3729926.262125] ffffffffc07061fa ffffffffc06fe084 0000000000000000 ffffab7701f7bd40 May 24 12:05:12 vps2 kernel: [3729926.262129] ffffffffc06ff997 ffff9fbb830dbac0 ffffffffc06fe084 ffff9fb934f86080 May 24 12:05:12 vps2 kernel: [3729926.262133] Call Trace: May 24 12:05:12 vps2 kernel: [3729926.262141] [<ffffffffb1329cd5>] ? dump_stack+0x5c/0x77 May 24 12:05:12 vps2 kernel: [3729926.262228] [<ffffffffc07061fa>] ? xfs_do_force_shutdown+0x13a/0x140 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262294] [<ffffffffc06fe084>] ? _xfs_buf_ioapply+0x444/0x450 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262361] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262427] [<ffffffffc06fe084>] ? _xfs_buf_ioapply+0x444/0x450 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262433] [<ffffffffb10a2b30>] ? wake_up_q+0x60/0x60 May 24 12:05:12 vps2 kernel: [3729926.262503] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262573] [<ffffffffc06ff6d7>] ? xfs_buf_submit+0x67/0x1f0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262643] [<ffffffffc06ff997>] ? xfs_buf_delwri_submit_buffers+0x137/0x260 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262717] [<ffffffffc073177b>] ? xfsaild+0x2cb/0x7b0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262789] [<ffffffffc06ff365>] ? xfs_buf_unlock+0x15/0x70 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262864] [<ffffffffc073177b>] ? xfsaild+0x2cb/0x7b0 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262939] [<ffffffffc07314b0>] ? xfs_trans_ail_cursor_first+0x80/0x80 [xfs] May 24 12:05:12 vps2 kernel: [3729926.262944] [<ffffffffb10974c0>] ? kthread+0xe0/0x100 May 24 12:05:12 vps2 kernel: [3729926.262948] [<ffffffffb102476b>] ? __switch_to+0x2bb/0x700 May 24 12:05:12 vps2 kernel: [3729926.262950] [<ffffffffb10973e0>] ? kthread_park+0x60/0x60 May 24 12:05:12 vps2 kernel: [3729926.262955] [<ffffffffb15fb675>] ? ret_from_fork+0x25/0x30 May 24 12:05:12 vps2 kernel: [3729926.263078] XFS (dm-2): Please umount the filesystem and rectify the problem(s) After filesystem shutdown, before reboot i have upgraded kernel to 4.9.25-1~bpo8+1 Customer was calling us, just when nagios alerted us on host problem, that he was copying some files between accounts (which means changing acls), i have asked him for more information. 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