Bug#747927: marked as done (qemu-utils: qemu-nbd blocks)
Your message dated Sat, 24 Apr 2021 23:46:42 -0700 (PDT)
with message-id <60851052.1c69fb81.e3a40.8757@mx.google.com>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #747927,
regarding qemu-utils: qemu-nbd blocks
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)
--
747927: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=747927
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: qemu-utils
Version: 2.0.0+dfsg-4
Severity: normal
Dear Maintainer,
I use qemu-nbd to mount a ext4 filesystem from a virtual disk image which is stored in an NTFS partition. I have more space in the NTFS partition than in my native-linux ones, but I need ext4, so this is a good solution.
I use the virtual disk to compile source code, which grows up to 8-9 GB. I mount it with:
modprobe nbd && qemu-nbd -c /dev/nbd0 /path_to_image/trunk.qcow2 && mount /dev/nbd0 /path_to_mountpoint/mnt/
Now I often find out the compilation hangs. I can kill the processes, but then I can't do ls. When I try to detach with:
qemu-nbd -d /dev/nbd0
also get a console blocked.
The system's performance feels degraded, and I have to shut down the system by cutting power.
I get this on dmesg:
[44918.309453] INFO: task qemu-nbd:29898 blocked for more than 120 seconds.
[44918.309458] Tainted: G O 3.13-1-amd64 #1
[44918.309459] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[44918.309460] qemu-nbd D ffff88010679d350 0 29898 1 0x00000000
[44918.309463] ffff88010679d010 0000000000000082 0000000000014280 0000000000014280
[44918.309465] ffff880107ce5fd8 ffff88010679d010 ffff88019fad4ac8 ffff88019fdc0068
[44918.309467] 0000000000000002 ffffffff811a7520 ffff880107ce55b0 0000000000000000
[44918.309469] Call Trace:
[44918.309475] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[44918.309479] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[44918.309481] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[44918.309483] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[44918.309485] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[44918.309487] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[44918.309490] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[44918.309511] [<ffffffffa017a6a0>] ? ext4_wait_block_bitmap+0xc0/0xd0 [ext4]
[44918.309518] [<ffffffffa01b021e>] ? ext4_mb_init_cache+0x20e/0x6e0 [ext4]
[44918.309524] [<ffffffffa01b0d6e>] ? ext4_mb_load_buddy+0x2ce/0x360 [ext4]
[44918.309530] [<ffffffffa01b4918>] ? ext4_discard_preallocations+0x1e8/0x450 [ext4]
[44918.309539] [<ffffffffa019e811>] ? ext4_clear_inode+0x21/0x80 [ext4]
[44918.309541] [<ffffffff81192c53>] ? evict+0xa3/0x190
[44918.309544] [<ffffffff81192d71>] ? dispose_list+0x31/0x40
[44918.309546] [<ffffffff81193b3f>] ? prune_icache_sb+0x3f/0x50
[44918.309548] [<ffffffff8117cb8a>] ? super_cache_scan+0xea/0x150
[44918.309551] [<ffffffff81126f36>] ? shrink_slab+0x1b6/0x350
[44918.309554] [<ffffffff81129d4d>] ? do_try_to_free_pages+0x3fd/0x550
[44918.309556] [<ffffffff81129f88>] ? try_to_free_pages+0xe8/0x170
[44918.309559] [<ffffffff8111f4a4>] ? __alloc_pages_nodemask+0x684/0x9d0
[44918.309562] [<ffffffff81159a37>] ? alloc_pages_current+0x97/0x150
[44918.309565] [<ffffffff813ac45a>] ? sock_alloc_send_pskb+0x1fa/0x3b0
[44918.309567] [<ffffffff81096e28>] ? __wake_up_sync_key+0x38/0x60
[44918.309569] [<ffffffff8144b5d3>] ? unix_stream_sendmsg+0x263/0x3e0
[44918.309571] [<ffffffff813a8036>] ? sock_sendmsg+0x86/0xc0
[44918.309573] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[44918.309575] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[44918.309577] [<ffffffff813a8843>] ? ___sys_sendmsg+0x3c3/0x3d0
[44918.309579] [<ffffffff810bd595>] ? wake_futex+0x55/0x70
[44918.309581] [<ffffffff810beb67>] ? futex_wake+0x1a7/0x1d0
[44918.309583] [<ffffffff810bfb26>] ? do_futex+0x116/0xd10
[44918.309585] [<ffffffff811b6ebe>] ? fsnotify+0x24e/0x330
[44918.309588] [<ffffffff811bfea5>] ? eventfd_ctx_read+0x55/0x210
[44918.309590] [<ffffffff813a8eb9>] ? __sys_sendmsg+0x39/0x70
[44918.309592] [<ffffffff814aeb79>] ? system_call_fastpath+0x16/0x1b
[44918.309594] INFO: task jbd2/nbd0-8:1138 blocked for more than 120 seconds.
[44918.309596] Tainted: G O 3.13-1-amd64 #1
[44918.309596] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[44918.309597] jbd2/nbd0-8 D ffff880141c05350 0 1138 2 0x00000000
[44918.309599] ffff880141c05010 0000000000000046 0000000000014280 0000000000014280
[44918.309601] ffff880144eb1fd8 ffff880141c05010 ffff88019fad4ac8 ffff88019fdb4068
[44918.309602] 0000000000000002 ffffffff811a7520 ffff880144eb1c80 ffff8801023adb80
[44918.309604] Call Trace:
[44918.309606] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[44918.309608] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[44918.309610] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[44918.309612] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[44918.309614] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[44918.309616] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[44918.309618] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[44918.309624] [<ffffffffa0162a49>] ? jbd2_journal_commit_transaction+0xda9/0x17d0 [jbd2]
[44918.309629] [<ffffffffa01670af>] ? kjournald2+0xaf/0x240 [jbd2]
[44918.309631] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[44918.309635] [<ffffffffa0167000>] ? commit_timeout+0x10/0x10 [jbd2]
[44918.309638] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[44918.309639] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[44918.309642] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[44918.309643] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[44918.309647] INFO: task kworker/u16:0:7511 blocked for more than 120 seconds.
[44918.309648] Tainted: G O 3.13-1-amd64 #1
[44918.309648] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[44918.309649] kworker/u16:0 D ffff880195924350 0 7511 2 0x00000000
[44918.309653] Workqueue: writeback bdi_writeback_workfn (flush-43:0)
[44918.309654] ffff880195924010 0000000000000046 0000000000014280 0000000000014280
[44918.309656] ffff88006e8d7fd8 ffff880195924010 ffff88019fa14ac8 ffff880195b30010
[44918.309657] ffff880196d91510 ffff880195b30068 ffff880195b30040 ffff880195b30040
[44918.309659] Call Trace:
[44918.309661] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[44918.309665] [<ffffffff81249f62>] ? get_request+0x182/0x6f0
[44918.309667] [<ffffffff81096bac>] ? wake_up_bit+0xc/0x20
[44918.309668] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[44918.309670] [<ffffffff8124bd6c>] ? blk_queue_bio+0x7c/0x350
[44918.309673] [<ffffffff8124878a>] ? generic_make_request+0xaa/0xf0
[44918.309675] [<ffffffff81248835>] ? submit_bio+0x65/0x140
[44918.309682] [<ffffffffa018891c>] ? ext4_io_submit+0x1c/0x40 [ext4]
[44918.309688] [<ffffffffa01854fe>] ? ext4_writepages+0x7ce/0xc70 [ext4]
[44918.309690] [<ffffffffa08de69c>] ? do_nbd_request+0xac/0x11a [nbd]
[44918.309692] [<ffffffff8119fb54>] ? __writeback_single_inode+0x34/0x210
[44918.309694] [<ffffffff811a051c>] ? writeback_sb_inodes+0x19c/0x3d0
[44918.309696] [<ffffffff811a07de>] ? __writeback_inodes_wb+0x8e/0xc0
[44918.309697] [<ffffffff811a0a53>] ? wb_writeback+0x243/0x2d0
[44918.309699] [<ffffffff811a243c>] ? bdi_writeback_workfn+0x1ac/0x410
[44918.309702] [<ffffffff81074c5d>] ? process_one_work+0x16d/0x420
[44918.309704] [<ffffffff81075826>] ? worker_thread+0x116/0x3b0
[44918.309706] [<ffffffff81075710>] ? rescuer_thread+0x330/0x330
[44918.309707] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[44918.309709] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[44918.309711] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[44918.309712] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45038.411503] INFO: task qemu-nbd:29898 blocked for more than 120 seconds.
[45038.411512] Tainted: G O 3.13-1-amd64 #1
[45038.411516] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45038.411520] qemu-nbd D ffff88010679d350 0 29898 1 0x00000000
[45038.411529] ffff88010679d010 0000000000000082 0000000000014280 0000000000014280
[45038.411536] ffff880107ce5fd8 ffff88010679d010 ffff88019fad4ac8 ffff88019fdc0068
[45038.411543] 0000000000000002 ffffffff811a7520 ffff880107ce55b0 0000000000000000
[45038.411550] Call Trace:
[45038.411564] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45038.411573] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45038.411580] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[45038.411587] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[45038.411594] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45038.411600] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[45038.411609] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[45038.411647] [<ffffffffa017a6a0>] ? ext4_wait_block_bitmap+0xc0/0xd0 [ext4]
[45038.411657] [<ffffffffa01b021e>] ? ext4_mb_init_cache+0x20e/0x6e0 [ext4]
[45038.411665] [<ffffffffa01b0d6e>] ? ext4_mb_load_buddy+0x2ce/0x360 [ext4]
[45038.411674] [<ffffffffa01b4918>] ? ext4_discard_preallocations+0x1e8/0x450 [ext4]
[45038.411685] [<ffffffffa019e811>] ? ext4_clear_inode+0x21/0x80 [ext4]
[45038.411689] [<ffffffff81192c53>] ? evict+0xa3/0x190
[45038.411692] [<ffffffff81192d71>] ? dispose_list+0x31/0x40
[45038.411695] [<ffffffff81193b3f>] ? prune_icache_sb+0x3f/0x50
[45038.411699] [<ffffffff8117cb8a>] ? super_cache_scan+0xea/0x150
[45038.411703] [<ffffffff81126f36>] ? shrink_slab+0x1b6/0x350
[45038.411706] [<ffffffff81129d4d>] ? do_try_to_free_pages+0x3fd/0x550
[45038.411709] [<ffffffff81129f88>] ? try_to_free_pages+0xe8/0x170
[45038.411712] [<ffffffff8111f4a4>] ? __alloc_pages_nodemask+0x684/0x9d0
[45038.411717] [<ffffffff81159a37>] ? alloc_pages_current+0x97/0x150
[45038.411738] [<ffffffff813ac45a>] ? sock_alloc_send_pskb+0x1fa/0x3b0
[45038.411744] [<ffffffff81096e28>] ? __wake_up_sync_key+0x38/0x60
[45038.411751] [<ffffffff8144b5d3>] ? unix_stream_sendmsg+0x263/0x3e0
[45038.411759] [<ffffffff813a8036>] ? sock_sendmsg+0x86/0xc0
[45038.411766] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45038.411772] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45038.411778] [<ffffffff813a8843>] ? ___sys_sendmsg+0x3c3/0x3d0
[45038.411786] [<ffffffff810bd595>] ? wake_futex+0x55/0x70
[45038.411793] [<ffffffff810beb67>] ? futex_wake+0x1a7/0x1d0
[45038.411800] [<ffffffff810bfb26>] ? do_futex+0x116/0xd10
[45038.411807] [<ffffffff811b6ebe>] ? fsnotify+0x24e/0x330
[45038.411814] [<ffffffff811bfea5>] ? eventfd_ctx_read+0x55/0x210
[45038.411821] [<ffffffff813a8eb9>] ? __sys_sendmsg+0x39/0x70
[45038.411830] [<ffffffff814aeb79>] ? system_call_fastpath+0x16/0x1b
[45038.411837] INFO: task jbd2/nbd0-8:1138 blocked for more than 120 seconds.
[45038.411840] Tainted: G O 3.13-1-amd64 #1
[45038.411842] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45038.411845] jbd2/nbd0-8 D ffff880141c05350 0 1138 2 0x00000000
[45038.411851] ffff880141c05010 0000000000000046 0000000000014280 0000000000014280
[45038.411856] ffff880144eb1fd8 ffff880141c05010 ffff88019fad4ac8 ffff88019fdb4068
[45038.411861] 0000000000000002 ffffffff811a7520 ffff880144eb1c80 ffff8801023adb80
[45038.411867] Call Trace:
[45038.411874] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45038.411881] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45038.411888] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[45038.411893] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[45038.411898] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45038.411902] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[45038.411916] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[45038.411932] [<ffffffffa0162a49>] ? jbd2_journal_commit_transaction+0xda9/0x17d0 [jbd2]
[45038.411946] [<ffffffffa01670af>] ? kjournald2+0xaf/0x240 [jbd2]
[45038.411951] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[45038.411962] [<ffffffffa0167000>] ? commit_timeout+0x10/0x10 [jbd2]
[45038.411967] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[45038.411971] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45038.411977] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[45038.411980] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45038.411988] INFO: task kworker/u16:0:7511 blocked for more than 120 seconds.
[45038.411990] Tainted: G O 3.13-1-amd64 #1
[45038.411992] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45038.411995] kworker/u16:0 D ffff880195924350 0 7511 2 0x00000000
[45038.412002] Workqueue: writeback bdi_writeback_workfn (flush-43:0)
[45038.412006] ffff880195924010 0000000000000046 0000000000014280 0000000000014280
[45038.412010] ffff88006e8d7fd8 ffff880195924010 ffff88019fa14ac8 ffff880195b30010
[45038.412014] ffff880196d91510 ffff880195b30068 ffff880195b30040 ffff880195b30040
[45038.412018] Call Trace:
[45038.412023] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45038.412030] [<ffffffff81249f62>] ? get_request+0x182/0x6f0
[45038.412035] [<ffffffff81096bac>] ? wake_up_bit+0xc/0x20
[45038.412040] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[45038.412045] [<ffffffff8124bd6c>] ? blk_queue_bio+0x7c/0x350
[45038.412051] [<ffffffff8124878a>] ? generic_make_request+0xaa/0xf0
[45038.412056] [<ffffffff81248835>] ? submit_bio+0x65/0x140
[45038.412074] [<ffffffffa018891c>] ? ext4_io_submit+0x1c/0x40 [ext4]
[45038.412089] [<ffffffffa01854fe>] ? ext4_writepages+0x7ce/0xc70 [ext4]
[45038.412094] [<ffffffffa08de69c>] ? do_nbd_request+0xac/0x11a [nbd]
[45038.412100] [<ffffffff8119fb54>] ? __writeback_single_inode+0x34/0x210
[45038.412104] [<ffffffff811a051c>] ? writeback_sb_inodes+0x19c/0x3d0
[45038.412108] [<ffffffff811a07de>] ? __writeback_inodes_wb+0x8e/0xc0
[45038.412112] [<ffffffff811a0a53>] ? wb_writeback+0x243/0x2d0
[45038.412117] [<ffffffff811a243c>] ? bdi_writeback_workfn+0x1ac/0x410
[45038.412124] [<ffffffff81074c5d>] ? process_one_work+0x16d/0x420
[45038.412128] [<ffffffff81075826>] ? worker_thread+0x116/0x3b0
[45038.412133] [<ffffffff81075710>] ? rescuer_thread+0x330/0x330
[45038.412137] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[45038.412141] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45038.412146] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[45038.412150] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45158.513531] INFO: task qemu-nbd:29898 blocked for more than 120 seconds.
[45158.513536] Tainted: G O 3.13-1-amd64 #1
[45158.513538] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45158.513539] qemu-nbd D ffff88010679d350 0 29898 1 0x00000000
[45158.513543] ffff88010679d010 0000000000000082 0000000000014280 0000000000014280
[45158.513547] ffff880107ce5fd8 ffff88010679d010 ffff88019fad4ac8 ffff88019fdc0068
[45158.513549] 0000000000000002 ffffffff811a7520 ffff880107ce55b0 0000000000000000
[45158.513552] Call Trace:
[45158.513560] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45158.513564] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45158.513568] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[45158.513570] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[45158.513573] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45158.513576] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[45158.513580] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[45158.513604] [<ffffffffa017a6a0>] ? ext4_wait_block_bitmap+0xc0/0xd0 [ext4]
[45158.513614] [<ffffffffa01b021e>] ? ext4_mb_init_cache+0x20e/0x6e0 [ext4]
[45158.513622] [<ffffffffa01b0d6e>] ? ext4_mb_load_buddy+0x2ce/0x360 [ext4]
[45158.513631] [<ffffffffa01b4918>] ? ext4_discard_preallocations+0x1e8/0x450 [ext4]
[45158.513642] [<ffffffffa019e811>] ? ext4_clear_inode+0x21/0x80 [ext4]
[45158.513646] [<ffffffff81192c53>] ? evict+0xa3/0x190
[45158.513649] [<ffffffff81192d71>] ? dispose_list+0x31/0x40
[45158.513652] [<ffffffff81193b3f>] ? prune_icache_sb+0x3f/0x50
[45158.513655] [<ffffffff8117cb8a>] ? super_cache_scan+0xea/0x150
[45158.513659] [<ffffffff81126f36>] ? shrink_slab+0x1b6/0x350
[45158.513662] [<ffffffff81129d4d>] ? do_try_to_free_pages+0x3fd/0x550
[45158.513665] [<ffffffff81129f88>] ? try_to_free_pages+0xe8/0x170
[45158.513668] [<ffffffff8111f4a4>] ? __alloc_pages_nodemask+0x684/0x9d0
[45158.513672] [<ffffffff81159a37>] ? alloc_pages_current+0x97/0x150
[45158.513676] [<ffffffff813ac45a>] ? sock_alloc_send_pskb+0x1fa/0x3b0
[45158.513678] [<ffffffff81096e28>] ? __wake_up_sync_key+0x38/0x60
[45158.513681] [<ffffffff8144b5d3>] ? unix_stream_sendmsg+0x263/0x3e0
[45158.513684] [<ffffffff813a8036>] ? sock_sendmsg+0x86/0xc0
[45158.513687] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45158.513689] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45158.513691] [<ffffffff813a8843>] ? ___sys_sendmsg+0x3c3/0x3d0
[45158.513695] [<ffffffff810bd595>] ? wake_futex+0x55/0x70
[45158.513698] [<ffffffff810beb67>] ? futex_wake+0x1a7/0x1d0
[45158.513701] [<ffffffff810bfb26>] ? do_futex+0x116/0xd10
[45158.513704] [<ffffffff811b6ebe>] ? fsnotify+0x24e/0x330
[45158.513706] [<ffffffff811bfea5>] ? eventfd_ctx_read+0x55/0x210
[45158.513709] [<ffffffff813a8eb9>] ? __sys_sendmsg+0x39/0x70
[45158.513713] [<ffffffff814aeb79>] ? system_call_fastpath+0x16/0x1b
[45158.513715] INFO: task jbd2/nbd0-8:1138 blocked for more than 120 seconds.
[45158.513717] Tainted: G O 3.13-1-amd64 #1
[45158.513718] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45158.513719] jbd2/nbd0-8 D ffff880141c05350 0 1138 2 0x00000000
[45158.513722] ffff880141c05010 0000000000000046 0000000000014280 0000000000014280
[45158.513724] ffff880144eb1fd8 ffff880141c05010 ffff88019fad4ac8 ffff88019fdb4068
[45158.513727] 0000000000000002 ffffffff811a7520 ffff880144eb1c80 ffff8801023adb80
[45158.513729] Call Trace:
[45158.513732] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45158.513735] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45158.513737] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[45158.513740] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[45158.513743] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45158.513745] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[45158.513748] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[45158.513756] [<ffffffffa0162a49>] ? jbd2_journal_commit_transaction+0xda9/0x17d0 [jbd2]
[45158.513763] [<ffffffffa01670af>] ? kjournald2+0xaf/0x240 [jbd2]
[45158.513766] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[45158.513772] [<ffffffffa0167000>] ? commit_timeout+0x10/0x10 [jbd2]
[45158.513775] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[45158.513778] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45158.513781] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[45158.513783] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45158.513787] INFO: task kworker/u16:0:7511 blocked for more than 120 seconds.
[45158.513788] Tainted: G O 3.13-1-amd64 #1
[45158.513789] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45158.513791] kworker/u16:0 D ffff880195924350 0 7511 2 0x00000000
[45158.513795] Workqueue: writeback bdi_writeback_workfn (flush-43:0)
[45158.513797] ffff880195924010 0000000000000046 0000000000014280 0000000000014280
[45158.513800] ffff88006e8d7fd8 ffff880195924010 ffff88019fa14ac8 ffff880195b30010
[45158.513802] ffff880196d91510 ffff880195b30068 ffff880195b30040 ffff880195b30040
[45158.513804] Call Trace:
[45158.513807] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45158.513811] [<ffffffff81249f62>] ? get_request+0x182/0x6f0
[45158.513814] [<ffffffff81096bac>] ? wake_up_bit+0xc/0x20
[45158.513817] [<ffffffff81096f50>] ? prepare_to_wait_event+0xf0/0xf0
[45158.513819] [<ffffffff8124bd6c>] ? blk_queue_bio+0x7c/0x350
[45158.513822] [<ffffffff8124878a>] ? generic_make_request+0xaa/0xf0
[45158.513825] [<ffffffff81248835>] ? submit_bio+0x65/0x140
[45158.513835] [<ffffffffa018891c>] ? ext4_io_submit+0x1c/0x40 [ext4]
[45158.513843] [<ffffffffa01854fe>] ? ext4_writepages+0x7ce/0xc70 [ext4]
[45158.513846] [<ffffffffa08de69c>] ? do_nbd_request+0xac/0x11a [nbd]
[45158.513850] [<ffffffff8119fb54>] ? __writeback_single_inode+0x34/0x210
[45158.513852] [<ffffffff811a051c>] ? writeback_sb_inodes+0x19c/0x3d0
[45158.513855] [<ffffffff811a07de>] ? __writeback_inodes_wb+0x8e/0xc0
[45158.513857] [<ffffffff811a0a53>] ? wb_writeback+0x243/0x2d0
[45158.513860] [<ffffffff811a243c>] ? bdi_writeback_workfn+0x1ac/0x410
[45158.513863] [<ffffffff81074c5d>] ? process_one_work+0x16d/0x420
[45158.513866] [<ffffffff81075826>] ? worker_thread+0x116/0x3b0
[45158.513869] [<ffffffff81075710>] ? rescuer_thread+0x330/0x330
[45158.513871] [<ffffffff8107bb51>] ? kthread+0xc1/0xe0
[45158.513873] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45158.513876] [<ffffffff814aeacc>] ? ret_from_fork+0x7c/0xb0
[45158.513878] [<ffffffff8107ba90>] ? kthread_create_on_node+0x180/0x180
[45278.615485] INFO: task qemu-nbd:29898 blocked for more than 120 seconds.
[45278.615490] Tainted: G O 3.13-1-amd64 #1
[45278.615491] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[45278.615492] qemu-nbd D ffff88010679d350 0 29898 1 0x00000000
[45278.615495] ffff88010679d010 0000000000000082 0000000000014280 0000000000014280
[45278.615498] ffff880107ce5fd8 ffff88010679d010 ffff88019fad4ac8 ffff88019fdc0068
[45278.615499] 0000000000000002 ffffffff811a7520 ffff880107ce55b0 0000000000000000
[45278.615501] Call Trace:
[45278.615508] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45278.615511] [<ffffffff814a4484>] ? io_schedule+0x94/0x130
[45278.615514] [<ffffffff811a7525>] ? sleep_on_buffer+0x5/0x10
[45278.615516] [<ffffffff814a47e4>] ? __wait_on_bit+0x54/0x80
[45278.615518] [<ffffffff811a7520>] ? generic_block_bmap+0x50/0x50
[45278.615520] [<ffffffff814a4882>] ? out_of_line_wait_on_bit+0x72/0x80
[45278.615523] [<ffffffff81096f80>] ? autoremove_wake_function+0x30/0x30
[45278.615544] [<ffffffffa017a6a0>] ? ext4_wait_block_bitmap+0xc0/0xd0 [ext4]
[45278.615551] [<ffffffffa01b021e>] ? ext4_mb_init_cache+0x20e/0x6e0 [ext4]
[45278.615557] [<ffffffffa01b0d6e>] ? ext4_mb_load_buddy+0x2ce/0x360 [ext4]
[45278.615563] [<ffffffffa01b4918>] ? ext4_discard_preallocations+0x1e8/0x450 [ext4]
[45278.615571] [<ffffffffa019e811>] ? ext4_clear_inode+0x21/0x80 [ext4]
[45278.615574] [<ffffffff81192c53>] ? evict+0xa3/0x190
[45278.615576] [<ffffffff81192d71>] ? dispose_list+0x31/0x40
[45278.615578] [<ffffffff81193b3f>] ? prune_icache_sb+0x3f/0x50
[45278.615581] [<ffffffff8117cb8a>] ? super_cache_scan+0xea/0x150
[45278.615584] [<ffffffff81126f36>] ? shrink_slab+0x1b6/0x350
[45278.615587] [<ffffffff81129d4d>] ? do_try_to_free_pages+0x3fd/0x550
[45278.615589] [<ffffffff81129f88>] ? try_to_free_pages+0xe8/0x170
[45278.615591] [<ffffffff8111f4a4>] ? __alloc_pages_nodemask+0x684/0x9d0
[45278.615594] [<ffffffff81159a37>] ? alloc_pages_current+0x97/0x150
[45278.615597] [<ffffffff813ac45a>] ? sock_alloc_send_pskb+0x1fa/0x3b0
[45278.615599] [<ffffffff81096e28>] ? __wake_up_sync_key+0x38/0x60
[45278.615601] [<ffffffff8144b5d3>] ? unix_stream_sendmsg+0x263/0x3e0
[45278.615603] [<ffffffff813a8036>] ? sock_sendmsg+0x86/0xc0
[45278.615605] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45278.615606] [<ffffffff8118c4f0>] ? poll_select_copy_remaining+0x130/0x130
[45278.615608] [<ffffffff813a8843>] ? ___sys_sendmsg+0x3c3/0x3d0
[45278.615611] [<ffffffff810bd595>] ? wake_futex+0x55/0x70
[45278.615613] [<ffffffff810beb67>] ? futex_wake+0x1a7/0x1d0
[45278.615615] [<ffffffff810bfb26>] ? do_futex+0x116/0xd10
[45278.615617] [<ffffffff811b6ebe>] ? fsnotify+0x24e/0x330
[45278.615619] [<ffffffff811bfea5>] ? eventfd_ctx_read+0x55/0x210
[45278.615621] [<ffffffff813a8eb9>] ? __sys_sendmsg+0x39/0x70
[45278.615624] [<ffffffff814aeb79>] ? system_call_fastpath+0x16/0x1b
I hope you can fix this.
Regards!
-- System Information:
Debian Release: jessie/sid
APT prefers testing-updates
APT policy: (500, 'testing-updates'), (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.13-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages qemu-utils depends on:
ii libaio1 0.3.109-4
ii libc6 2.18-5
ii libcurl3-gnutls 7.36.0-2
ii libgcc1 1:4.9.0-2
ii libglib2.0-0 2.40.0-3
ii libiscsi1 1.4.0-3
ii libssh2-1 1.4.3-2
ii libuuid1 2.20.1-5.7
ii zlib1g 1:1.2.8.dfsg-1
Versions of packages qemu-utils recommends:
ii sharutils 1:4.14-2
Versions of packages qemu-utils suggests:
pn debootstrap <none>
-- no debconf information
--- End Message ---
--- Begin Message ---
Hi
This bug was filed for a very old kernel or the bug is old itself
without resolution.
If you can reproduce it with
- the current version in unstable/testing
- the latest kernel from backports
please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.
Regards,
Salvatore
--- End Message ---
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