Package: qemu-utils Version: 1:4.1-1+b3 Severity: normal Dear Maintainer,
I experience the following syptoms since Debian buster. In Debian stretch it works just fine: Load Kernel Module: sudo modprobe nbd max_part=16 Create an image: qemeu-image create vdi /path/to/img-file.vdi 120G Bind the image: qemeu-nbd -c /dev/nbd0 /path/to/img-file.vdi Create a partion, e.g.: cfdisk /dev/nbd0 Format the partition: sudo mkfs.ext4 /dev/nbd0p1 Mount the partition: sudo mount /dev/nbd0p1 /mnt/nbd0 Now, copy over a large file, e.g. 20G. After about 10GB the procedure will stop and there will be things like the following in /var/log/kernel.log Oct 18 12:04:07 free kernel: [ 449.449298] block nbd1: Connection timed out Oct 18 12:06:42 free kernel: [ 605.016877] INFO: task kworker/u2:4:142 blocked for more than 120 seconds. Oct 18 12:06:42 free kernel: [ 605.016882] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:06:42 free kernel: [ 605.016883] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:06:42 free kernel: [ 605.016885] kworker/u2:4 D 0 142 2 0x80004000 Oct 18 12:06:42 free kernel: [ 605.016904] Workqueue: writeback wb_workfn (flush-254:3) Oct 18 12:06:42 free kernel: [ 605.016906] Call Trace: Oct 18 12:06:42 free kernel: [ 605.016925] ? __schedule+0x2bb/0x660 Oct 18 12:06:42 free kernel: [ 605.016931] ? blk_flush_plug_list+0xd7/0x100 Oct 18 12:06:42 free kernel: [ 605.016933] ? wbt_exit+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.016935] ? __wbt_done+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.016937] schedule+0x2f/0xa0 Oct 18 12:06:42 free kernel: [ 605.016939] io_schedule+0x12/0x40 Oct 18 12:06:42 free kernel: [ 605.016942] rq_qos_wait+0xfe/0x160 Oct 18 12:06:42 free kernel: [ 605.016955] ? karma_partition+0x210/0x210 Oct 18 12:06:42 free kernel: [ 605.016957] ? wbt_exit+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.016959] wbt_wait+0x99/0xe0 Oct 18 12:06:42 free kernel: [ 605.016962] __rq_qos_throttle+0x23/0x30 Oct 18 12:06:42 free kernel: [ 605.016964] blk_mq_make_request+0x11d/0x590 Oct 18 12:06:42 free kernel: [ 605.016973] ? dm_process_bio+0x15a/0x220 [dm_mod] Oct 18 12:06:42 free kernel: [ 605.016975] generic_make_request+0xcf/0x310 Oct 18 12:06:42 free kernel: [ 605.016978] submit_bio+0x45/0x140 Oct 18 12:06:42 free kernel: [ 605.016998] ext4_io_submit+0x49/0x60 [ext4] Oct 18 12:06:42 free kernel: [ 605.017014] ext4_writepages+0x707/0xeb0 [ext4] Oct 18 12:06:42 free kernel: [ 605.017023] ? check_preempt_wakeup+0x18d/0x230 Oct 18 12:06:42 free kernel: [ 605.017028] ? do_writepages+0x41/0xd0 Oct 18 12:06:42 free kernel: [ 605.017042] ? ext4_mark_inode_dirty+0x1d0/0x1d0 [ext4] Oct 18 12:06:42 free kernel: [ 605.017045] do_writepages+0x41/0xd0 Oct 18 12:06:42 free kernel: [ 605.017055] ? __wake_up_common_lock+0x89/0xc0 Oct 18 12:06:42 free kernel: [ 605.017058] __writeback_single_inode+0x3d/0x340 Oct 18 12:06:42 free kernel: [ 605.017067] writeback_sb_inodes+0x1e5/0x480 Oct 18 12:06:42 free kernel: [ 605.017070] __writeback_inodes_wb+0x5d/0xb0 Oct 18 12:06:42 free kernel: [ 605.017072] wb_writeback+0x25f/0x2f0 Oct 18 12:06:42 free kernel: [ 605.017075] wb_workfn+0x30c/0x400 Oct 18 12:06:42 free kernel: [ 605.017078] process_one_work+0x1a7/0x3b0 Oct 18 12:06:42 free kernel: [ 605.017086] worker_thread+0x1fa/0x390 Oct 18 12:06:42 free kernel: [ 605.017087] ? create_worker+0x1a0/0x1a0 Oct 18 12:06:42 free kernel: [ 605.017090] kthread+0x112/0x130 Oct 18 12:06:42 free kernel: [ 605.017092] ? __kthread_parkme+0x70/0x70 Oct 18 12:06:42 free kernel: [ 605.017094] ret_from_fork+0x35/0x40 Oct 18 12:06:42 free kernel: [ 605.017137] INFO: task kworker/0:2H:2962 blocked for more than 120 seconds. Oct 18 12:06:42 free kernel: [ 605.017140] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:06:42 free kernel: [ 605.017141] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:06:42 free kernel: [ 605.017143] kworker/0:2H D 0 2962 2 0x80004000 Oct 18 12:06:42 free kernel: [ 605.017148] Workqueue: kblockd blk_mq_timeout_work Oct 18 12:06:42 free kernel: [ 605.017149] Call Trace: Oct 18 12:06:42 free kernel: [ 605.017153] ? __schedule+0x2bb/0x660 Oct 18 12:06:42 free kernel: [ 605.017156] schedule+0x2f/0xa0 Oct 18 12:06:42 free kernel: [ 605.017159] schedule_preempt_disabled+0xa/0x10 Oct 18 12:06:42 free kernel: [ 605.017162] __mutex_lock.isra.8+0x2b5/0x4a0 Oct 18 12:06:42 free kernel: [ 605.017165] ? blk_mq_dispatch_rq_list+0x48d/0x5c0 Oct 18 12:06:42 free kernel: [ 605.017171] sock_shutdown+0x58/0x80 [nbd] Oct 18 12:06:42 free kernel: [ 605.017174] nbd_xmit_timeout+0xb7/0x150 [nbd] Oct 18 12:06:42 free kernel: [ 605.017176] blk_mq_check_expired+0xe7/0x100 Oct 18 12:06:42 free kernel: [ 605.017179] blk_mq_queue_tag_busy_iter+0x19a/0x2f0 Oct 18 12:06:42 free kernel: [ 605.017181] ? blk_poll+0x350/0x350 Oct 18 12:06:42 free kernel: [ 605.017182] ? __switch_to_asm+0x34/0x70 Oct 18 12:06:42 free kernel: [ 605.017184] ? blk_poll+0x350/0x350 Oct 18 12:06:42 free kernel: [ 605.017186] ? __switch_to+0x10/0x3e0 Oct 18 12:06:42 free kernel: [ 605.017188] blk_mq_timeout_work+0x54/0x120 Oct 18 12:06:42 free kernel: [ 605.017190] process_one_work+0x1a7/0x3b0 Oct 18 12:06:42 free kernel: [ 605.017191] worker_thread+0x30/0x390 Oct 18 12:06:42 free kernel: [ 605.017193] ? create_worker+0x1a0/0x1a0 Oct 18 12:06:42 free kernel: [ 605.017195] kthread+0x112/0x130 Oct 18 12:06:42 free kernel: [ 605.017197] ? __kthread_parkme+0x70/0x70 Oct 18 12:06:42 free kernel: [ 605.017199] ret_from_fork+0x35/0x40 Oct 18 12:06:42 free kernel: [ 605.017201] INFO: task jbd2/dm-3-8:3222 blocked for more than 120 seconds. Oct 18 12:06:42 free kernel: [ 605.017203] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:06:42 free kernel: [ 605.017204] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:06:42 free kernel: [ 605.017205] jbd2/dm-3-8 D 0 3222 2 0x80004000 Oct 18 12:06:42 free kernel: [ 605.017207] Call Trace: Oct 18 12:06:42 free kernel: [ 605.017209] ? __schedule+0x2bb/0x660 Oct 18 12:06:42 free kernel: [ 605.017212] ? bit_wait_timeout+0x90/0x90 Oct 18 12:06:42 free kernel: [ 605.017213] schedule+0x2f/0xa0 Oct 18 12:06:42 free kernel: [ 605.017215] io_schedule+0x12/0x40 Oct 18 12:06:42 free kernel: [ 605.017217] bit_wait_io+0xd/0x50 Oct 18 12:06:42 free kernel: [ 605.017219] __wait_on_bit+0x73/0x90 Oct 18 12:06:42 free kernel: [ 605.017222] out_of_line_wait_on_bit+0x91/0xb0 Oct 18 12:06:42 free kernel: [ 605.017224] ? init_wait_var_entry+0x40/0x40 Oct 18 12:06:42 free kernel: [ 605.017230] jbd2_journal_commit_transaction+0x14b5/0x1890 [jbd2] Oct 18 12:06:42 free kernel: [ 605.017232] ? __switch_to_asm+0x40/0x70 Oct 18 12:06:42 free kernel: [ 605.017239] kjournald2+0xbd/0x270 [jbd2] Oct 18 12:06:42 free kernel: [ 605.017242] ? finish_wait+0x80/0x80 Oct 18 12:06:42 free kernel: [ 605.017247] ? commit_timeout+0x10/0x10 [jbd2] Oct 18 12:06:42 free kernel: [ 605.017249] kthread+0x112/0x130 Oct 18 12:06:42 free kernel: [ 605.017251] ? __kthread_parkme+0x70/0x70 Oct 18 12:06:42 free kernel: [ 605.017252] ret_from_fork+0x35/0x40 Oct 18 12:06:42 free kernel: [ 605.017254] INFO: task ext4lazyinit:3224 blocked for more than 120 seconds. Oct 18 12:06:42 free kernel: [ 605.017256] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:06:42 free kernel: [ 605.017256] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:06:42 free kernel: [ 605.017258] ext4lazyinit D 0 3224 2 0x80004000 Oct 18 12:06:42 free kernel: [ 605.017259] Call Trace: Oct 18 12:06:42 free kernel: [ 605.017261] ? __schedule+0x2bb/0x660 Oct 18 12:06:42 free kernel: [ 605.017263] ? blk_flush_plug_list+0xd7/0x100 Oct 18 12:06:42 free kernel: [ 605.017265] ? wbt_exit+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.017267] ? __wbt_done+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.017269] schedule+0x2f/0xa0 Oct 18 12:06:42 free kernel: [ 605.017271] io_schedule+0x12/0x40 Oct 18 12:06:42 free kernel: [ 605.017273] rq_qos_wait+0xfe/0x160 Oct 18 12:06:42 free kernel: [ 605.017275] ? karma_partition+0x210/0x210 Oct 18 12:06:42 free kernel: [ 605.017276] ? wbt_exit+0x30/0x30 Oct 18 12:06:42 free kernel: [ 605.017278] wbt_wait+0x99/0xe0 Oct 18 12:06:42 free kernel: [ 605.017281] __rq_qos_throttle+0x23/0x30 Oct 18 12:06:42 free kernel: [ 605.017282] blk_mq_make_request+0x11d/0x590 Oct 18 12:06:42 free kernel: [ 605.017288] ? dm_process_bio+0x15a/0x220 [dm_mod] Oct 18 12:06:42 free kernel: [ 605.017290] generic_make_request+0xcf/0x310 Oct 18 12:06:42 free kernel: [ 605.017292] submit_bio+0x45/0x140 Oct 18 12:06:42 free kernel: [ 605.017294] blk_next_bio+0x33/0x40 Oct 18 12:06:42 free kernel: [ 605.017296] __blkdev_issue_zero_pages+0x90/0x190 Oct 18 12:06:42 free kernel: [ 605.017297] blkdev_issue_zeroout+0xef/0x220 Oct 18 12:06:42 free kernel: [ 605.017312] ext4_init_inode_table+0x17b/0x390 [ext4] Oct 18 12:06:42 free kernel: [ 605.017329] ext4_lazyinit_thread+0x2bd/0x3a0 [ext4] Oct 18 12:06:42 free kernel: [ 605.017343] ? ext4_unregister_li_request+0x60/0x60 [ext4] Oct 18 12:06:42 free kernel: [ 605.017346] kthread+0x112/0x130 Oct 18 12:06:42 free kernel: [ 605.017348] ? __kthread_parkme+0x70/0x70 Oct 18 12:06:42 free kernel: [ 605.017349] ret_from_fork+0x35/0x40 Oct 18 12:08:43 free kernel: [ 725.788441] INFO: task kworker/u2:4:142 blocked for more than 241 seconds. Oct 18 12:08:43 free kernel: [ 725.788448] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:08:43 free kernel: [ 725.788450] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:08:43 free kernel: [ 725.788453] kworker/u2:4 D 0 142 2 0x80004000 Oct 18 12:08:43 free kernel: [ 725.788465] Workqueue: writeback wb_workfn (flush-254:3) Oct 18 12:08:43 free kernel: [ 725.788468] Call Trace: Oct 18 12:08:43 free kernel: [ 725.788479] ? __schedule+0x2bb/0x660 Oct 18 12:08:43 free kernel: [ 725.788483] ? blk_flush_plug_list+0xd7/0x100 Oct 18 12:08:43 free kernel: [ 725.788487] ? wbt_exit+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788490] ? __wbt_done+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788493] schedule+0x2f/0xa0 Oct 18 12:08:43 free kernel: [ 725.788496] io_schedule+0x12/0x40 Oct 18 12:08:43 free kernel: [ 725.788500] rq_qos_wait+0xfe/0x160 Oct 18 12:08:43 free kernel: [ 725.788503] ? karma_partition+0x210/0x210 Oct 18 12:08:43 free kernel: [ 725.788506] ? wbt_exit+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788509] wbt_wait+0x99/0xe0 Oct 18 12:08:43 free kernel: [ 725.788513] __rq_qos_throttle+0x23/0x30 Oct 18 12:08:43 free kernel: [ 725.788516] blk_mq_make_request+0x11d/0x590 Oct 18 12:08:43 free kernel: [ 725.788529] ? dm_process_bio+0x15a/0x220 [dm_mod] Oct 18 12:08:43 free kernel: [ 725.788533] generic_make_request+0xcf/0x310 Oct 18 12:08:43 free kernel: [ 725.788536] submit_bio+0x45/0x140 Oct 18 12:08:43 free kernel: [ 725.788568] ext4_io_submit+0x49/0x60 [ext4] Oct 18 12:08:43 free kernel: [ 725.788592] ext4_writepages+0x707/0xeb0 [ext4] Oct 18 12:08:43 free kernel: [ 725.788600] ? check_preempt_wakeup+0x18d/0x230 Oct 18 12:08:43 free kernel: [ 725.788606] ? do_writepages+0x41/0xd0 Oct 18 12:08:43 free kernel: [ 725.788627] ? ext4_mark_inode_dirty+0x1d0/0x1d0 [ext4] Oct 18 12:08:43 free kernel: [ 725.788631] do_writepages+0x41/0xd0 Oct 18 12:08:43 free kernel: [ 725.788635] ? __wake_up_common_lock+0x89/0xc0 Oct 18 12:08:43 free kernel: [ 725.788640] __writeback_single_inode+0x3d/0x340 Oct 18 12:08:43 free kernel: [ 725.788644] writeback_sb_inodes+0x1e5/0x480 Oct 18 12:08:43 free kernel: [ 725.788648] __writeback_inodes_wb+0x5d/0xb0 Oct 18 12:08:43 free kernel: [ 725.788652] wb_writeback+0x25f/0x2f0 Oct 18 12:08:43 free kernel: [ 725.788656] wb_workfn+0x30c/0x400 Oct 18 12:08:43 free kernel: [ 725.788660] process_one_work+0x1a7/0x3b0 Oct 18 12:08:43 free kernel: [ 725.788663] worker_thread+0x1fa/0x390 Oct 18 12:08:43 free kernel: [ 725.788665] ? create_worker+0x1a0/0x1a0 Oct 18 12:08:43 free kernel: [ 725.788668] kthread+0x112/0x130 Oct 18 12:08:43 free kernel: [ 725.788672] ? __kthread_parkme+0x70/0x70 Oct 18 12:08:43 free kernel: [ 725.788675] ret_from_fork+0x35/0x40 Oct 18 12:08:43 free kernel: [ 725.788726] INFO: task kworker/0:2H:2962 blocked for more than 241 seconds. Oct 18 12:08:43 free kernel: [ 725.788729] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:08:43 free kernel: [ 725.788730] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:08:43 free kernel: [ 725.788732] kworker/0:2H D 0 2962 2 0x80004000 Oct 18 12:08:43 free kernel: [ 725.788738] Workqueue: kblockd blk_mq_timeout_work Oct 18 12:08:43 free kernel: [ 725.788740] Call Trace: Oct 18 12:08:43 free kernel: [ 725.788744] ? __schedule+0x2bb/0x660 Oct 18 12:08:43 free kernel: [ 725.788748] schedule+0x2f/0xa0 Oct 18 12:08:43 free kernel: [ 725.788751] schedule_preempt_disabled+0xa/0x10 Oct 18 12:08:43 free kernel: [ 725.788754] __mutex_lock.isra.8+0x2b5/0x4a0 Oct 18 12:08:43 free kernel: [ 725.788758] ? blk_mq_dispatch_rq_list+0x48d/0x5c0 Oct 18 12:08:43 free kernel: [ 725.788766] sock_shutdown+0x58/0x80 [nbd] Oct 18 12:08:43 free kernel: [ 725.788771] nbd_xmit_timeout+0xb7/0x150 [nbd] Oct 18 12:08:43 free kernel: [ 725.788774] blk_mq_check_expired+0xe7/0x100 Oct 18 12:08:43 free kernel: [ 725.788778] blk_mq_queue_tag_busy_iter+0x19a/0x2f0 Oct 18 12:08:43 free kernel: [ 725.788781] ? blk_poll+0x350/0x350 Oct 18 12:08:43 free kernel: [ 725.788783] ? __switch_to_asm+0x34/0x70 Oct 18 12:08:43 free kernel: [ 725.788786] ? blk_poll+0x350/0x350 Oct 18 12:08:43 free kernel: [ 725.788790] ? __switch_to+0x10/0x3e0 Oct 18 12:08:43 free kernel: [ 725.788793] blk_mq_timeout_work+0x54/0x120 Oct 18 12:08:43 free kernel: [ 725.788796] process_one_work+0x1a7/0x3b0 Oct 18 12:08:43 free kernel: [ 725.788798] worker_thread+0x30/0x390 Oct 18 12:08:43 free kernel: [ 725.788801] ? create_worker+0x1a0/0x1a0 Oct 18 12:08:43 free kernel: [ 725.788803] kthread+0x112/0x130 Oct 18 12:08:43 free kernel: [ 725.788806] ? __kthread_parkme+0x70/0x70 Oct 18 12:08:43 free kernel: [ 725.788809] ret_from_fork+0x35/0x40 Oct 18 12:08:43 free kernel: [ 725.788812] INFO: task jbd2/dm-3-8:3222 blocked for more than 241 seconds. Oct 18 12:08:43 free kernel: [ 725.788815] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:08:43 free kernel: [ 725.788816] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:08:43 free kernel: [ 725.788818] jbd2/dm-3-8 D 0 3222 2 0x80004000 Oct 18 12:08:43 free kernel: [ 725.788820] Call Trace: Oct 18 12:08:43 free kernel: [ 725.788824] ? __schedule+0x2bb/0x660 Oct 18 12:08:43 free kernel: [ 725.788828] ? bit_wait_timeout+0x90/0x90 Oct 18 12:08:43 free kernel: [ 725.788830] schedule+0x2f/0xa0 Oct 18 12:08:43 free kernel: [ 725.788833] io_schedule+0x12/0x40 Oct 18 12:08:43 free kernel: [ 725.788836] bit_wait_io+0xd/0x50 Oct 18 12:08:43 free kernel: [ 725.788840] __wait_on_bit+0x73/0x90 Oct 18 12:08:43 free kernel: [ 725.788843] out_of_line_wait_on_bit+0x91/0xb0 Oct 18 12:08:43 free kernel: [ 725.788847] ? init_wait_var_entry+0x40/0x40 Oct 18 12:08:43 free kernel: [ 725.788857] jbd2_journal_commit_transaction+0x14b5/0x1890 [jbd2] Oct 18 12:08:43 free kernel: [ 725.788860] ? __switch_to_asm+0x40/0x70 Oct 18 12:08:43 free kernel: [ 725.788870] kjournald2+0xbd/0x270 [jbd2] Oct 18 12:08:43 free kernel: [ 725.788875] ? finish_wait+0x80/0x80 Oct 18 12:08:43 free kernel: [ 725.788882] ? commit_timeout+0x10/0x10 [jbd2] Oct 18 12:08:43 free kernel: [ 725.788885] kthread+0x112/0x130 Oct 18 12:08:43 free kernel: [ 725.788888] ? __kthread_parkme+0x70/0x70 Oct 18 12:08:43 free kernel: [ 725.788891] ret_from_fork+0x35/0x40 Oct 18 12:08:43 free kernel: [ 725.788894] INFO: task ext4lazyinit:3224 blocked for more than 241 seconds. Oct 18 12:08:43 free kernel: [ 725.788896] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:08:43 free kernel: [ 725.788897] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:08:43 free kernel: [ 725.788899] ext4lazyinit D 0 3224 2 0x80004000 Oct 18 12:08:43 free kernel: [ 725.788901] Call Trace: Oct 18 12:08:43 free kernel: [ 725.788905] ? __schedule+0x2bb/0x660 Oct 18 12:08:43 free kernel: [ 725.788908] ? blk_flush_plug_list+0xd7/0x100 Oct 18 12:08:43 free kernel: [ 725.788911] ? wbt_exit+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788914] ? __wbt_done+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788917] schedule+0x2f/0xa0 Oct 18 12:08:43 free kernel: [ 725.788920] io_schedule+0x12/0x40 Oct 18 12:08:43 free kernel: [ 725.788923] rq_qos_wait+0xfe/0x160 Oct 18 12:08:43 free kernel: [ 725.788926] ? karma_partition+0x210/0x210 Oct 18 12:08:43 free kernel: [ 725.788929] ? wbt_exit+0x30/0x30 Oct 18 12:08:43 free kernel: [ 725.788931] wbt_wait+0x99/0xe0 Oct 18 12:08:43 free kernel: [ 725.788935] __rq_qos_throttle+0x23/0x30 Oct 18 12:08:43 free kernel: [ 725.788938] blk_mq_make_request+0x11d/0x590 Oct 18 12:08:43 free kernel: [ 725.788946] ? dm_process_bio+0x15a/0x220 [dm_mod] Oct 18 12:08:43 free kernel: [ 725.788949] generic_make_request+0xcf/0x310 Oct 18 12:08:43 free kernel: [ 725.788953] submit_bio+0x45/0x140 Oct 18 12:08:43 free kernel: [ 725.788955] blk_next_bio+0x33/0x40 Oct 18 12:08:43 free kernel: [ 725.788958] __blkdev_issue_zero_pages+0x90/0x190 Oct 18 12:08:43 free kernel: [ 725.788960] blkdev_issue_zeroout+0xef/0x220 Oct 18 12:08:43 free kernel: [ 725.788984] ext4_init_inode_table+0x17b/0x390 [ext4] Oct 18 12:08:43 free kernel: [ 725.789010] ext4_lazyinit_thread+0x2bd/0x3a0 [ext4] Oct 18 12:08:43 free kernel: [ 725.789035] ? ext4_unregister_li_request+0x60/0x60 [ext4] Oct 18 12:08:43 free kernel: [ 725.789038] kthread+0x112/0x130 Oct 18 12:08:43 free kernel: [ 725.789041] ? __kthread_parkme+0x70/0x70 Oct 18 12:08:43 free kernel: [ 725.789044] ret_from_fork+0x35/0x40 Oct 18 12:10:44 free kernel: [ 846.559910] INFO: task kworker/u2:4:142 blocked for more than 362 seconds. Oct 18 12:10:44 free kernel: [ 846.559917] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:10:44 free kernel: [ 846.559918] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:10:44 free kernel: [ 846.559921] kworker/u2:4 D 0 142 2 0x80004000 Oct 18 12:10:44 free kernel: [ 846.559931] Workqueue: writeback wb_workfn (flush-254:3) Oct 18 12:10:44 free kernel: [ 846.559933] Call Trace: Oct 18 12:10:44 free kernel: [ 846.559943] ? __schedule+0x2bb/0x660 Oct 18 12:10:44 free kernel: [ 846.559946] ? blk_flush_plug_list+0xd7/0x100 Oct 18 12:10:44 free kernel: [ 846.559949] ? wbt_exit+0x30/0x30 Oct 18 12:10:44 free kernel: [ 846.559952] ? __wbt_done+0x30/0x30 Oct 18 12:10:44 free kernel: [ 846.559954] schedule+0x2f/0xa0 Oct 18 12:10:44 free kernel: [ 846.559957] io_schedule+0x12/0x40 Oct 18 12:10:44 free kernel: [ 846.559960] rq_qos_wait+0xfe/0x160 Oct 18 12:10:44 free kernel: [ 846.559963] ? karma_partition+0x210/0x210 Oct 18 12:10:44 free kernel: [ 846.559966] ? wbt_exit+0x30/0x30 Oct 18 12:10:44 free kernel: [ 846.559968] wbt_wait+0x99/0xe0 Oct 18 12:10:44 free kernel: [ 846.559971] __rq_qos_throttle+0x23/0x30 Oct 18 12:10:44 free kernel: [ 846.559974] blk_mq_make_request+0x11d/0x590 Oct 18 12:10:44 free kernel: [ 846.559984] ? dm_process_bio+0x15a/0x220 [dm_mod] Oct 18 12:10:44 free kernel: [ 846.559987] generic_make_request+0xcf/0x310 Oct 18 12:10:44 free kernel: [ 846.559990] submit_bio+0x45/0x140 Oct 18 12:10:44 free kernel: [ 846.560016] ext4_io_submit+0x49/0x60 [ext4] Oct 18 12:10:44 free kernel: [ 846.560035] ext4_writepages+0x707/0xeb0 [ext4] Oct 18 12:10:44 free kernel: [ 846.560042] ? check_preempt_wakeup+0x18d/0x230 Oct 18 12:10:44 free kernel: [ 846.560047] ? do_writepages+0x41/0xd0 Oct 18 12:10:44 free kernel: [ 846.560064] ? ext4_mark_inode_dirty+0x1d0/0x1d0 [ext4] Oct 18 12:10:44 free kernel: [ 846.560067] do_writepages+0x41/0xd0 Oct 18 12:10:44 free kernel: [ 846.560071] ? __wake_up_common_lock+0x89/0xc0 Oct 18 12:10:44 free kernel: [ 846.560075] __writeback_single_inode+0x3d/0x340 Oct 18 12:10:44 free kernel: [ 846.560078] writeback_sb_inodes+0x1e5/0x480 Oct 18 12:10:44 free kernel: [ 846.560082] __writeback_inodes_wb+0x5d/0xb0 Oct 18 12:10:44 free kernel: [ 846.560085] wb_writeback+0x25f/0x2f0 Oct 18 12:10:44 free kernel: [ 846.560089] wb_workfn+0x30c/0x400 Oct 18 12:10:44 free kernel: [ 846.560092] process_one_work+0x1a7/0x3b0 Oct 18 12:10:44 free kernel: [ 846.560095] worker_thread+0x1fa/0x390 Oct 18 12:10:44 free kernel: [ 846.560097] ? create_worker+0x1a0/0x1a0 Oct 18 12:10:44 free kernel: [ 846.560100] kthread+0x112/0x130 Oct 18 12:10:44 free kernel: [ 846.560103] ? __kthread_parkme+0x70/0x70 Oct 18 12:10:44 free kernel: [ 846.560106] ret_from_fork+0x35/0x40 Oct 18 12:10:44 free kernel: [ 846.560147] INFO: task kworker/0:2H:2962 blocked for more than 362 seconds. Oct 18 12:10:44 free kernel: [ 846.560150] Tainted: G OE 5.2.0-3-amd64 #1 Debian 5.2.17-1 Oct 18 12:10:44 free kernel: [ 846.560151] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Oct 18 12:10:44 free kernel: [ 846.560153] kworker/0:2H D 0 2962 2 0x80004000 Oct 18 12:10:44 free kernel: [ 846.560158] Workqueue: kblockd blk_mq_timeout_work Oct 18 12:10:44 free kernel: [ 846.560159] Call Trace: Oct 18 12:10:44 free kernel: [ 846.560163] ? __schedule+0x2bb/0x660 Oct 18 12:10:44 free kernel: [ 846.560166] schedule+0x2f/0xa0 Oct 18 12:10:44 free kernel: [ 846.560169] schedule_preempt_disabled+0xa/0x10 Oct 18 12:10:44 free kernel: [ 846.560172] __mutex_lock.isra.8+0x2b5/0x4a0 Oct 18 12:10:44 free kernel: [ 846.560175] ? blk_mq_dispatch_rq_list+0x48d/0x5c0 Oct 18 12:10:44 free kernel: [ 846.560182] sock_shutdown+0x58/0x80 [nbd] Oct 18 12:10:44 free kernel: [ 846.560187] nbd_xmit_timeout+0xb7/0x150 [nbd] Oct 18 12:10:44 free kernel: [ 846.560189] blk_mq_check_expired+0xe7/0x100 Oct 18 12:10:44 free kernel: [ 846.560192] blk_mq_queue_tag_busy_iter+0x19a/0x2f0 Oct 18 12:10:44 free kernel: [ 846.560195] ? blk_poll+0x350/0x350 Oct 18 12:10:44 free kernel: [ 846.560197] ? __switch_to_asm+0x34/0x70 Oct 18 12:10:44 free kernel: [ 846.560199] ? blk_poll+0x350/0x350 Oct 18 12:10:44 free kernel: [ 846.560201] ? __switch_to+0x10/0x3e0 Oct 18 12:10:44 free kernel: [ 846.560204] blk_mq_timeout_work+0x54/0x120 Oct 18 12:10:44 free kernel: [ 846.560206] process_one_work+0x1a7/0x3b0 Oct 18 12:10:44 free kernel: [ 846.560208] worker_thread+0x30/0x390 Oct 18 12:10:44 free kernel: [ 846.560210] ? create_worker+0x1a0/0x1a0 Oct 18 12:10:44 free kernel: [ 846.560212] kthread+0x112/0x130 Oct 18 12:10:44 free kernel: [ 846.560226] ? __kthread_parkme+0x70/0x70 Oct 18 12:10:44 free kernel: [ 846.560228] ret_from_fork+0x35/0x40 Oct 18 12:35:42 free kernel: [ 0.000000] Linux version 5.2.0-3-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-23)) #1 SMP Debian 5.2.17-1 (2019-10-06) Oct 18 12:35:42 free kernel: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.2.0-3-amd64 root=/dev/mapper/test--lvm--vg-root ro quiet And/or this: Oct 13 11:19:03 free kernel: [ 213.420917] block nbd1: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.421006] block nbd1: Disconnected due to user request. Oct 13 11:19:03 free kernel: [ 213.421983] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:19:03 free kernel: [ 213.421991] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:19:03 free kernel: [ 213.422011] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:19:03 free kernel: [ 213.422014] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:19:03 free kernel: [ 213.422024] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:19:03 free kernel: [ 213.422026] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:19:03 free kernel: [ 213.422036] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:19:03 free kernel: [ 213.422038] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:19:03 free kernel: [ 213.422048] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:19:03 free kernel: [ 213.422050] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:19:03 free kernel: [ 213.422059] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:19:03 free kernel: [ 213.422062] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:19:03 free kernel: [ 213.422071] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:19:03 free kernel: [ 213.422073] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:19:03 free kernel: [ 213.422101] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:19:03 free kernel: [ 213.422103] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:19:03 free kernel: [ 213.422116] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:19:03 free kernel: [ 213.422118] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:19:03 free kernel: [ 213.422125] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:19:03 free kernel: [ 213.422127] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:19:03 free kernel: [ 213.422251] ldm_validate_partition_table(): Disk read failed. Oct 13 11:19:03 free kernel: [ 213.422421] Dev nbd1: unable to read RDB block 0 Oct 13 11:19:03 free kernel: [ 213.422599] nbd1: unable to read partition table Oct 13 11:19:03 free kernel: [ 213.422829] ldm_validate_partition_table(): Disk read failed. Oct 13 11:19:03 free kernel: [ 213.423002] Dev nbd1: unable to read RDB block 0 Oct 13 11:19:03 free kernel: [ 213.428372] nbd1: unable to read partition table Oct 13 11:19:03 free kernel: [ 213.436129] block nbd0: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.457035] block nbd1: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.461999] block nbd0: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.826134] block nbd1: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.832202] block nbd0: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.852389] block nbd1: NBD_DISCONNECT Oct 13 11:19:03 free kernel: [ 213.857512] block nbd0: NBD_DISCONNECT Oct 13 11:22:14 free kernel: [ 404.790015] block nbd1: NBD_DISCONNECT Oct 13 11:22:14 free kernel: [ 404.797440] block nbd0: NBD_DISCONNECT Oct 13 11:22:14 free kernel: [ 404.821874] block nbd1: NBD_DISCONNECT Oct 13 11:22:14 free kernel: [ 404.828243] block nbd0: NBD_DISCONNECT Oct 13 11:24:37 free kernel: [ 547.343900] block nbd1: NBD_DISCONNECT Oct 13 11:24:37 free kernel: [ 547.343977] block nbd1: Disconnected due to user request. Oct 13 11:24:37 free kernel: [ 547.344914] print_req_error: 182 callbacks suppressed Oct 13 11:24:37 free kernel: [ 547.344917] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:24:37 free kernel: [ 547.344923] buffer_io_error: 182 callbacks suppressed Oct 13 11:24:37 free kernel: [ 547.344925] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:24:37 free kernel: [ 547.345114] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:24:37 free kernel: [ 547.345119] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:24:37 free kernel: [ 547.345129] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:24:37 free kernel: [ 547.345131] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:24:37 free kernel: [ 547.345139] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:24:37 free kernel: [ 547.345141] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:24:37 free kernel: [ 547.345151] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:24:37 free kernel: [ 547.345153] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:24:37 free kernel: [ 547.345161] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:24:37 free kernel: [ 547.345163] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:24:37 free kernel: [ 547.345171] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:24:37 free kernel: [ 547.345173] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:24:37 free kernel: [ 547.345185] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:24:37 free kernel: [ 547.345187] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:24:37 free kernel: [ 547.345203] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:24:37 free kernel: [ 547.345205] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:24:37 free kernel: [ 547.345213] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:24:37 free kernel: [ 547.345215] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:24:37 free kernel: [ 547.345357] ldm_validate_partition_table(): Disk read failed. Oct 13 11:24:37 free kernel: [ 547.345555] Dev nbd1: unable to read RDB block 0 Oct 13 11:24:37 free kernel: [ 547.345763] nbd1: unable to read partition table Oct 13 11:24:37 free kernel: [ 547.346034] ldm_validate_partition_table(): Disk read failed. Oct 13 11:24:37 free kernel: [ 547.346231] Dev nbd1: unable to read RDB block 0 Oct 13 11:24:37 free kernel: [ 547.346433] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.462406] block nbd1: NBD_DISCONNECT Oct 13 11:25:27 free kernel: [ 597.462437] block nbd1: Disconnected due to user request. Oct 13 11:25:27 free kernel: [ 597.462721] print_req_error: 182 callbacks suppressed Oct 13 11:25:27 free kernel: [ 597.462722] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:25:27 free kernel: [ 597.462723] buffer_io_error: 182 callbacks suppressed Oct 13 11:25:27 free kernel: [ 597.462724] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:25:27 free kernel: [ 597.462730] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:25:27 free kernel: [ 597.462731] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:25:27 free kernel: [ 597.462734] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:25:27 free kernel: [ 597.462734] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:25:27 free kernel: [ 597.462737] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:25:27 free kernel: [ 597.462737] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:25:27 free kernel: [ 597.462740] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:25:27 free kernel: [ 597.462741] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:25:27 free kernel: [ 597.462743] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:25:27 free kernel: [ 597.462744] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:25:27 free kernel: [ 597.462746] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:25:27 free kernel: [ 597.462747] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:25:27 free kernel: [ 597.462751] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:25:27 free kernel: [ 597.462751] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:25:27 free kernel: [ 597.462757] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:25:27 free kernel: [ 597.462757] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:25:27 free kernel: [ 597.462760] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:25:27 free kernel: [ 597.462760] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:25:27 free kernel: [ 597.462805] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.462867] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.462932] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.464997] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.465102] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.465168] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.467891] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.467954] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.468021] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.470461] block nbd0: NBD_DISCONNECT Oct 13 11:25:27 free kernel: [ 597.471099] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.471162] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.471227] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.471312] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.471374] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.471438] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.474762] ldm_validate_partition_table(): Disk read failed. Oct 13 11:25:27 free kernel: [ 597.474824] Dev nbd1: unable to read RDB block 0 Oct 13 11:25:27 free kernel: [ 597.474889] nbd1: unable to read partition table Oct 13 11:25:27 free kernel: [ 597.484450] block nbd1: NBD_DISCONNECT Oct 13 11:25:27 free kernel: [ 597.486235] block nbd0: NBD_DISCONNECT Oct 13 11:26:20 free kernel: [ 650.829740] block nbd1: NBD_DISCONNECT Oct 13 11:26:20 free kernel: [ 650.829838] block nbd1: Disconnected due to user request. Oct 13 11:26:20 free kernel: [ 650.830814] print_req_error: 575 callbacks suppressed Oct 13 11:26:20 free kernel: [ 650.830817] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:26:20 free kernel: [ 650.830824] buffer_io_error: 574 callbacks suppressed Oct 13 11:26:20 free kernel: [ 650.830826] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:26:20 free kernel: [ 650.830846] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:26:20 free kernel: [ 650.830849] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:26:20 free kernel: [ 650.830860] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:26:20 free kernel: [ 650.830862] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:26:20 free kernel: [ 650.830872] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:26:20 free kernel: [ 650.830874] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:26:20 free kernel: [ 650.830884] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:26:20 free kernel: [ 650.830886] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:26:20 free kernel: [ 650.830895] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:26:20 free kernel: [ 650.830898] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:26:20 free kernel: [ 650.830907] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:26:20 free kernel: [ 650.830909] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:26:20 free kernel: [ 650.830924] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:26:20 free kernel: [ 650.830926] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:26:20 free kernel: [ 650.830944] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:26:20 free kernel: [ 650.830947] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:26:20 free kernel: [ 650.830956] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:26:20 free kernel: [ 650.830959] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:26:20 free kernel: [ 650.831169] ldm_validate_partition_table(): Disk read failed. Oct 13 11:26:20 free kernel: [ 650.831402] Dev nbd1: unable to read RDB block 0 Oct 13 11:26:20 free kernel: [ 650.831644] nbd1: unable to read partition table Oct 13 11:26:20 free kernel: [ 650.831960] ldm_validate_partition_table(): Disk read failed. Oct 13 11:26:20 free kernel: [ 650.832193] Dev nbd1: unable to read RDB block 0 Oct 13 11:26:20 free kernel: [ 650.832434] nbd1: unable to read partition table Oct 13 11:26:20 free kernel: [ 650.850299] block nbd0: NBD_DISCONNECT Oct 13 11:26:20 free kernel: [ 650.866829] block nbd1: NBD_DISCONNECT Oct 13 11:26:20 free kernel: [ 650.872238] block nbd0: NBD_DISCONNECT Oct 13 11:27:07 free kernel: [ 697.727569] block nbd1: NBD_DISCONNECT Oct 13 11:27:07 free kernel: [ 697.727602] block nbd1: Disconnected due to user request. Oct 13 11:27:07 free kernel: [ 697.727916] print_req_error: 182 callbacks suppressed Oct 13 11:27:07 free kernel: [ 697.727917] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:27:07 free kernel: [ 697.727919] buffer_io_error: 182 callbacks suppressed Oct 13 11:27:07 free kernel: [ 697.727920] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:27:07 free kernel: [ 697.727927] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:27:07 free kernel: [ 697.727928] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:27:07 free kernel: [ 697.727930] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:27:07 free kernel: [ 697.727931] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:27:07 free kernel: [ 697.727934] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:27:07 free kernel: [ 697.727935] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:27:07 free kernel: [ 697.727937] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:27:07 free kernel: [ 697.727938] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:27:07 free kernel: [ 697.727941] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:27:07 free kernel: [ 697.727941] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:27:07 free kernel: [ 697.727944] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:27:07 free kernel: [ 697.727945] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:27:07 free kernel: [ 697.727949] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:27:07 free kernel: [ 697.727950] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:27:07 free kernel: [ 697.727955] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:27:07 free kernel: [ 697.727956] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:27:07 free kernel: [ 697.727959] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:27:07 free kernel: [ 697.727959] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:27:07 free kernel: [ 697.728008] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:07 free kernel: [ 697.728074] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:07 free kernel: [ 697.728143] nbd1: unable to read partition table Oct 13 11:27:07 free kernel: [ 697.728234] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:07 free kernel: [ 697.728300] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:07 free kernel: [ 697.728367] nbd1: unable to read partition table Oct 13 11:27:07 free kernel: [ 697.729640] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:07 free kernel: [ 697.729714] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:07 free kernel: [ 697.729783] nbd1: unable to read partition table Oct 13 11:27:07 free kernel: [ 697.730297] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:07 free kernel: [ 697.730362] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:07 free kernel: [ 697.730430] nbd1: unable to read partition table Oct 13 11:27:07 free kernel: [ 697.737367] block nbd0: NBD_DISCONNECT Oct 13 11:27:07 free kernel: [ 697.751292] block nbd1: NBD_DISCONNECT Oct 13 11:27:07 free kernel: [ 697.756432] block nbd0: NBD_DISCONNECT Oct 13 11:27:23 free kernel: [ 713.452457] block nbd1: NBD_DISCONNECT Oct 13 11:27:23 free kernel: [ 713.452489] block nbd1: Disconnected due to user request. Oct 13 11:27:23 free kernel: [ 713.452785] print_req_error: 383 callbacks suppressed Oct 13 11:27:23 free kernel: [ 713.452786] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:27:23 free kernel: [ 713.452788] buffer_io_error: 382 callbacks suppressed Oct 13 11:27:23 free kernel: [ 713.452789] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:27:23 free kernel: [ 713.452795] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:27:23 free kernel: [ 713.452796] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:27:23 free kernel: [ 713.452799] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:27:23 free kernel: [ 713.452800] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:27:23 free kernel: [ 713.452802] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:27:23 free kernel: [ 713.452803] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:27:23 free kernel: [ 713.452806] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:27:23 free kernel: [ 713.452806] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:27:23 free kernel: [ 713.452809] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:27:23 free kernel: [ 713.452810] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:27:23 free kernel: [ 713.452812] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:27:23 free kernel: [ 713.452813] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:27:23 free kernel: [ 713.452817] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:27:23 free kernel: [ 713.452818] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:27:23 free kernel: [ 713.452823] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:27:23 free kernel: [ 713.452824] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:27:23 free kernel: [ 713.452827] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:27:23 free kernel: [ 713.452827] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:27:23 free kernel: [ 713.452887] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:23 free kernel: [ 713.452950] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:23 free kernel: [ 713.453015] nbd1: unable to read partition table Oct 13 11:27:23 free kernel: [ 713.453102] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:23 free kernel: [ 713.453165] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:23 free kernel: [ 713.453230] nbd1: unable to read partition table Oct 13 11:27:23 free kernel: [ 713.454379] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:23 free kernel: [ 713.454442] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:23 free kernel: [ 713.454507] nbd1: unable to read partition table Oct 13 11:27:23 free kernel: [ 713.454980] ldm_validate_partition_table(): Disk read failed. Oct 13 11:27:23 free kernel: [ 713.455102] Dev nbd1: unable to read RDB block 0 Oct 13 11:27:23 free kernel: [ 713.455166] nbd1: unable to read partition table Oct 13 11:27:23 free kernel: [ 713.465565] block nbd0: NBD_DISCONNECT Oct 13 11:27:23 free kernel: [ 713.477996] block nbd1: NBD_DISCONNECT Oct 13 11:27:23 free kernel: [ 713.482674] block nbd0: NBD_DISCONNECT Oct 13 11:28:16 free kernel: [ 766.759620] block nbd1: NBD_DISCONNECT Oct 13 11:28:16 free kernel: [ 766.765261] block nbd0: NBD_DISCONNECT Oct 13 11:28:16 free kernel: [ 766.772551] block nbd1: NBD_DISCONNECT Oct 13 11:28:16 free kernel: [ 766.777506] block nbd0: NBD_DISCONNECT Oct 13 11:28:33 free kernel: [ 783.019791] block nbd1: NBD_DISCONNECT Oct 13 11:28:33 free kernel: [ 783.019883] block nbd1: Disconnected due to user request. Oct 13 11:28:33 free kernel: [ 783.020851] print_req_error: 383 callbacks suppressed Oct 13 11:28:33 free kernel: [ 783.020855] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:28:33 free kernel: [ 783.020861] buffer_io_error: 382 callbacks suppressed Oct 13 11:28:33 free kernel: [ 783.020864] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:28:33 free kernel: [ 783.020884] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:28:33 free kernel: [ 783.020887] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:28:33 free kernel: [ 783.020898] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:28:33 free kernel: [ 783.020900] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:28:33 free kernel: [ 783.020910] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:28:33 free kernel: [ 783.020912] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:28:33 free kernel: [ 783.020922] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:28:33 free kernel: [ 783.020924] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:28:33 free kernel: [ 783.020933] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:28:33 free kernel: [ 783.020936] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:28:33 free kernel: [ 783.020945] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:28:33 free kernel: [ 783.020947] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:28:33 free kernel: [ 783.020961] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:28:33 free kernel: [ 783.020964] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:28:33 free kernel: [ 783.020982] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:28:33 free kernel: [ 783.020985] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:28:33 free kernel: [ 783.020996] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:28:33 free kernel: [ 783.020998] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:28:33 free kernel: [ 783.021167] ldm_validate_partition_table(): Disk read failed. Oct 13 11:28:33 free kernel: [ 783.021398] Dev nbd1: unable to read RDB block 0 Oct 13 11:28:33 free kernel: [ 783.021640] nbd1: unable to read partition table Oct 13 11:28:33 free kernel: [ 783.021953] ldm_validate_partition_table(): Disk read failed. Oct 13 11:28:33 free kernel: [ 783.022187] Dev nbd1: unable to read RDB block 0 Oct 13 11:28:33 free kernel: [ 783.022423] nbd1: unable to read partition table Oct 13 11:28:33 free kernel: [ 783.036979] block nbd0: NBD_DISCONNECT Oct 13 11:28:33 free kernel: [ 783.051997] block nbd1: NBD_DISCONNECT Oct 13 11:28:33 free kernel: [ 783.057931] block nbd0: NBD_DISCONNECT Oct 13 11:28:44 free kernel: [ 794.232905] block nbd1: NBD_DISCONNECT Oct 13 11:28:44 free kernel: [ 794.238458] block nbd0: NBD_DISCONNECT Oct 13 11:28:44 free kernel: [ 794.247611] block nbd1: NBD_DISCONNECT Oct 13 11:28:44 free kernel: [ 794.252883] block nbd0: NBD_DISCONNECT Oct 13 11:29:06 free kernel: [ 816.240576] block nbd1: NBD_DISCONNECT Oct 13 11:29:06 free kernel: [ 816.246196] block nbd0: NBD_DISCONNECT Oct 13 11:29:06 free kernel: [ 816.254445] block nbd1: NBD_DISCONNECT Oct 13 11:29:06 free kernel: [ 816.258645] block nbd0: NBD_DISCONNECT Oct 13 11:29:21 free kernel: [ 831.380225] block nbd1: NBD_DISCONNECT Oct 13 11:29:21 free kernel: [ 831.380318] block nbd1: Disconnected due to user request. Oct 13 11:29:21 free kernel: [ 831.381310] print_req_error: 182 callbacks suppressed Oct 13 11:29:21 free kernel: [ 831.381313] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:29:21 free kernel: [ 831.381320] buffer_io_error: 182 callbacks suppressed Oct 13 11:29:21 free kernel: [ 831.381337] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:29:21 free kernel: [ 831.381358] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:29:21 free kernel: [ 831.381361] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:29:21 free kernel: [ 831.381370] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:29:21 free kernel: [ 831.381373] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:29:21 free kernel: [ 831.381381] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:29:21 free kernel: [ 831.381384] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:29:21 free kernel: [ 831.381392] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:29:21 free kernel: [ 831.381394] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:29:21 free kernel: [ 831.381403] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:29:21 free kernel: [ 831.381405] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:29:21 free kernel: [ 831.381414] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:29:21 free kernel: [ 831.381416] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:29:21 free kernel: [ 831.381428] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:29:21 free kernel: [ 831.381431] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:29:21 free kernel: [ 831.381447] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:29:21 free kernel: [ 831.381450] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:29:21 free kernel: [ 831.381458] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:29:21 free kernel: [ 831.381461] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:29:21 free kernel: [ 831.381615] ldm_validate_partition_table(): Disk read failed. Oct 13 11:29:21 free kernel: [ 831.381830] Dev nbd1: unable to read RDB block 0 Oct 13 11:29:21 free kernel: [ 831.382052] nbd1: unable to read partition table Oct 13 11:29:21 free kernel: [ 831.382338] ldm_validate_partition_table(): Disk read failed. Oct 13 11:29:21 free kernel: [ 831.382551] Dev nbd1: unable to read RDB block 0 Oct 13 11:29:21 free kernel: [ 831.382770] nbd1: unable to read partition table Oct 13 11:29:21 free kernel: [ 831.395494] block nbd0: NBD_DISCONNECT Oct 13 11:29:21 free kernel: [ 831.411843] block nbd1: NBD_DISCONNECT Oct 13 11:29:21 free kernel: [ 831.419893] block nbd0: NBD_DISCONNECT Oct 13 11:29:39 free kernel: [ 849.869377] block nbd1: NBD_DISCONNECT Oct 13 11:29:39 free kernel: [ 849.869382] block nbd1: Disconnected due to user request. Oct 13 11:29:39 free kernel: [ 849.869383] block nbd1: shutting down sockets Oct 13 11:29:39 free kernel: [ 849.869534] print_req_error: 182 callbacks suppressed Oct 13 11:29:39 free kernel: [ 849.869536] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:29:39 free kernel: [ 849.869538] buffer_io_error: 182 callbacks suppressed Oct 13 11:29:39 free kernel: [ 849.869538] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:29:39 free kernel: [ 849.869543] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:29:39 free kernel: [ 849.869543] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:29:39 free kernel: [ 849.869546] print_req_error: I/O error, dev nbd1, sector 2 flags 0 Oct 13 11:29:39 free kernel: [ 849.869547] Buffer I/O error on dev nbd1, logical block 2, async page read Oct 13 11:29:39 free kernel: [ 849.869549] print_req_error: I/O error, dev nbd1, sector 3 flags 0 Oct 13 11:29:39 free kernel: [ 849.869550] Buffer I/O error on dev nbd1, logical block 3, async page read Oct 13 11:29:39 free kernel: [ 849.869552] print_req_error: I/O error, dev nbd1, sector 4 flags 0 Oct 13 11:29:39 free kernel: [ 849.869553] Buffer I/O error on dev nbd1, logical block 4, async page read Oct 13 11:29:39 free kernel: [ 849.869555] print_req_error: I/O error, dev nbd1, sector 5 flags 0 Oct 13 11:29:39 free kernel: [ 849.869556] Buffer I/O error on dev nbd1, logical block 5, async page read Oct 13 11:29:39 free kernel: [ 849.869558] print_req_error: I/O error, dev nbd1, sector 6 flags 0 Oct 13 11:29:39 free kernel: [ 849.869559] Buffer I/O error on dev nbd1, logical block 6, async page read Oct 13 11:29:39 free kernel: [ 849.869562] print_req_error: I/O error, dev nbd1, sector 7 flags 0 Oct 13 11:29:39 free kernel: [ 849.869563] Buffer I/O error on dev nbd1, logical block 7, async page read Oct 13 11:29:39 free kernel: [ 849.869567] print_req_error: I/O error, dev nbd1, sector 0 flags 0 Oct 13 11:29:39 free kernel: [ 849.869568] Buffer I/O error on dev nbd1, logical block 0, async page read Oct 13 11:29:39 free kernel: [ 849.869570] print_req_error: I/O error, dev nbd1, sector 1 flags 0 Oct 13 11:29:39 free kernel: [ 849.869571] Buffer I/O error on dev nbd1, logical block 1, async page read Oct 13 11:29:39 free kernel: [ 849.869614] ldm_validate_partition_table(): Disk read failed. Oct 13 11:29:39 free kernel: [ 849.869673] Dev nbd1: unable to read RDB block 0 Oct 13 11:29:39 free kernel: [ 849.869734] nbd1: unable to read partition table Oct 13 11:29:39 free kernel: [ 849.871997] block nbd0: NBD_DISCONNECT Oct 13 11:29:39 free kernel: [ 849.882161] ldm_validate_partition_table(): Disk read failed. Oct 13 11:29:39 free kernel: [ 849.882222] Dev nbd1: unable to read RDB block 0 Oct 13 11:29:39 free kernel: [ 849.882303] nbd1: unable to read partition table Oct 13 11:29:39 free kernel: [ 849.882309] block nbd1: NBD_DISCONNECT Oct 13 11:29:39 free kernel: [ 849.882311] block nbd1: Send disconnect failed -32 Oct 13 11:29:39 free kernel: [ 849.885020] block nbd0: NBD_DISCONNECT Oct 13 11:30:11 free kernel: [ 881.354868] block nbd1: Connection timed out Oct 13 11:30:11 free kernel: [ 881.354879] block nbd1: Connection timed out Oct 13 11:30:11 free kernel: [ 881.354904] print_req_error: 182 callbacks suppressed Oct 13 11:30:11 free kernel: [ 881.354907] print_req_error: I/O error, dev nbd1, sector 251658120 flags 80700 Oct 13 11:30:11 free kernel: [ 881.354931] print_req_error: I/O error, dev nbd1, sector 251658184 flags 80700 Oct 13 11:30:11 free kernel: [ 881.354974] print_req_error: I/O error, dev nbd1, sector 251658120 flags 0 Oct 13 11:30:11 free kernel: [ 881.354977] buffer_io_error: 182 callbacks suppressed Oct 13 11:30:11 free kernel: [ 881.354979] Buffer I/O error on dev nbd1, logical block 251658120, async page read Oct 13 11:30:11 free kernel: [ 881.354990] print_req_error: I/O error, dev nbd1, sector 251658121 flags 0 Oct 13 11:30:11 free kernel: [ 881.354993] Buffer I/O error on dev nbd1, logical block 251658121, async page read Oct 13 11:30:11 free kernel: [ 881.355001] print_req_error: I/O error, dev nbd1, sector 251658122 flags 0 Oct 13 11:30:11 free kernel: [ 881.355003] Buffer I/O error on dev nbd1, logical block 251658122, async page read Oct 13 11:30:11 free kernel: [ 881.355011] print_req_error: I/O error, dev nbd1, sector 251658123 flags 0 Oct 13 11:30:11 free kernel: [ 881.355013] Buffer I/O error on dev nbd1, logical block 251658123, async page read Oct 13 11:30:11 free kernel: [ 881.355021] print_req_error: I/O error, dev nbd1, sector 251658124 flags 0 Oct 13 11:30:11 free kernel: [ 881.355023] Buffer I/O error on dev nbd1, logical block 251658124, async page read Oct 13 11:30:11 free kernel: [ 881.355031] print_req_error: I/O error, dev nbd1, sector 251658125 flags 0 Oct 13 11:30:11 free kernel: [ 881.355033] Buffer I/O error on dev nbd1, logical block 251658125, async page read Oct 13 11:30:11 free kernel: [ 881.355041] print_req_error: I/O error, dev nbd1, sector 251658126 flags 0 Oct 13 11:30:11 free kernel: [ 881.355043] Buffer I/O error on dev nbd1, logical block 251658126, async page read Oct 13 11:30:11 free kernel: [ 881.355052] print_req_error: I/O error, dev nbd1, sector 251658127 flags 0 Oct 13 11:30:11 free kernel: [ 881.355054] Buffer I/O error on dev nbd1, logical block 251658127, async page read Oct 13 11:30:11 free kernel: [ 881.355247] Buffer I/O error on dev nbd1, logical block 4096, async page read Oct 13 11:30:11 free kernel: [ 881.355257] Buffer I/O error on dev nbd1, logical block 4097, async page read Oct 13 11:32:39 free kernel: [ 0.000000] Linux version 5.2.0-3-amd64 (debian-ker...@lists.debian.org) (gcc version 8.3.0 (Debian 8.3.0-23)) #1 SMP Debian 5.2.17-1 (2019-10-06) Oct 13 11:32:39 free kernel: [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-5.2.0-3-amd64 root=/dev/mapper/test--lvm--vg-root ro quiet I've also tried with different settings of the --cache option to qemu-nbd, but this only resulted in faster speeds, but the problem was the same. Like I said, if I try the same on a current Stretch system, it works like a charm. I am not sure if this is a pure qemu-nbd (NBD) problem or related to the kernel (or both). -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.2.0-3-amd64 (SMP w/8 CPU cores) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages qemu-utils depends on: ii libaio1 0.3.112-5 ii libc6 2.29-2 ii libgcc1 1:9.2.1-9 ii libglib2.0-0 2.62.1-1 ii libgnutls30 3.6.9-5 ii libnettle6 3.5.1+really3.4.1-1 ii zlib1g 1:1.2.11.dfsg-1+b1 qemu-utils recommends no packages. Versions of packages qemu-utils suggests: ii debootstrap 1.0.116 pn qemu-block-extra <none> -- no debconf information
