[Kernel-packages] [Bug 1607355] Re: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1607355 Title: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs Status in linux package in Ubuntu: Expired Bug description: I was able to reproduce this 2 or 3 times last 2 days. I have the following setup: Containers for Trusty/kilo service machines: inaddy@workstation:~$ lxc-ls | grep tk tkcephmon01 RUNNING 0 - 192.168.65.52 - tkcephmon02 RUNNING 0 - 192.168.65.51 - tkcephmon03 RUNNING 0 - 192.168.65.48 - tkcinder RUNNING 0 - 192.168.65.49 - tkdash RUNNING 0 - 192.168.65.50 - tkglance RUNNING 0 - 192.168.65.53 - tkjuju RUNNING 0 - 192.168.65.15 - tkkeystone RUNNING 0 - 192.168.65.54 - tkmysql RUNNING 0 - 192.168.65.55 - tknova RUNNING 0 - 192.168.65.56 - tkrabbit RUNNING 0 - 192.168.65.57 - tkswiftproxy RUNNING 0 - 192.168.65.58 - And compute nodes + neutrongw as kvm guests: inaddy@workstation:~$ virsh list --all | grep tk 21tkcompute01running 22tkcompute02running 23tkcompute03running 24tkneutrongwrunning All my LXC containers are on top of ZFS: Linux workstation 4.4.0-32-generic #51-Ubuntu SMP Tue Jul 19 18:09:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux And my KVM guests are on top of ext4 + 1.2 raid0 stripped volume. I'm getting the lockups bellow (usually for mongod, from tkjuju container, the juju controller). After the first lockup appears (schedule timeout coming from zfs sync logic most likely), JuJu controller starts giving me errors on "update-status". From "juju status": glance/0error idle1.25.6 10 9292/tcp tkglance hook failed: "update-status" keystone/0 error idle1.25.6 11 tkkeystone hook failed: "update-status" mysql/0 error idle1.25.6 12 tkmysqlhook failed: "config-changed" neutron-api/0 error idle1.25.6 4 9696/tcp tkneutrongwhook failed: "update-status" nova-compute/0 error idle1.25.6 1 tkcompute01hook failed: "update-status" nova-compute/1 error idle1.25.6 2 tkcompute02hook failed: "update-status" nova-compute/2 error idle1.25.6 3 tkcompute03hook failed: "update-status" Lockups: [105601.816578] INFO: task mongod:14480 blocked for more than 120 seconds. [105601.816583] Tainted: P O4.4.0-32-generic #51-Ubuntu [105601.816584] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [105601.816586] mongod D 88010ec47ba8 0 14480 16855 0x0100 [105601.816590] 88010ec47ba8 57992eeb 880108e5ee00 880108e58dc0 [105601.816592] 88010ec48000 88081ecd6d00 7fff 8182a600 [105601.816594] 88010ec47d08 88010ec47bc0 81829e05 [105601.816596] Call Trace: [105601.816603] [] ? bit_wait+0x60/0x60 [105601.816606] [] schedule+0x35/0x80 [105601.816608] [] schedule_timeout+0x1b5/0x270 [105601.816612] [] ? find_get_pages_tag+0x109/0x190 [105601.816614] [] ? bit_wait+0x60/0x60 [105601.816616] [] io_schedule_timeout+0xa4/0x110 [105601.816618] [] bit_wait_io+0x1b/0x70 [105601.816620] [] __wait_on_bit+0x5d/0x90 [105601.816622] [] wait_on_page_bit+0xcb/0xf0 [105601.816625] [] ? autoremove_wake_function+0x40/0x40 [105601.816628] [] __filemap_fdatawait_range+0xf3/0x160 [105601.816630] [] filemap_fdatawait_range+0x14/0x30 [105601.816632] [] filemap_write_and_wait_range+0x3f/0x70 [105601.816682] [] zpl_fsync+0x38/0x90 [zfs] [105601.816685] [] vfs_fsync_range+0x4b/0xb0 [105601.816687] [] SyS_msync+0x17e/0x1f0 [105601.816689] [] entry_SYSCALL_64_fastpath+0x16/0x71 [117121.961545] INFO: task txg_sync:4589 blocked for more than 120 seconds. [117121.961549] Tainted: P O4.4.0-32-generic #51-Ubuntu [117121.961550] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [117121.961551] txg_syncD 8807e1fbbaa8 0 4589 2 0x
[Kernel-packages] [Bug 1607355] Re: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs
This might be related to #1773392. On the other hand, the issue in #1773392 appears to have been introduced in more recent kernels (16.04 not affected). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1607355 Title: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs Status in linux package in Ubuntu: Incomplete Bug description: I was able to reproduce this 2 or 3 times last 2 days. I have the following setup: Containers for Trusty/kilo service machines: inaddy@workstation:~$ lxc-ls | grep tk tkcephmon01 RUNNING 0 - 192.168.65.52 - tkcephmon02 RUNNING 0 - 192.168.65.51 - tkcephmon03 RUNNING 0 - 192.168.65.48 - tkcinder RUNNING 0 - 192.168.65.49 - tkdash RUNNING 0 - 192.168.65.50 - tkglance RUNNING 0 - 192.168.65.53 - tkjuju RUNNING 0 - 192.168.65.15 - tkkeystone RUNNING 0 - 192.168.65.54 - tkmysql RUNNING 0 - 192.168.65.55 - tknova RUNNING 0 - 192.168.65.56 - tkrabbit RUNNING 0 - 192.168.65.57 - tkswiftproxy RUNNING 0 - 192.168.65.58 - And compute nodes + neutrongw as kvm guests: inaddy@workstation:~$ virsh list --all | grep tk 21tkcompute01running 22tkcompute02running 23tkcompute03running 24tkneutrongwrunning All my LXC containers are on top of ZFS: Linux workstation 4.4.0-32-generic #51-Ubuntu SMP Tue Jul 19 18:09:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux And my KVM guests are on top of ext4 + 1.2 raid0 stripped volume. I'm getting the lockups bellow (usually for mongod, from tkjuju container, the juju controller). After the first lockup appears (schedule timeout coming from zfs sync logic most likely), JuJu controller starts giving me errors on "update-status". From "juju status": glance/0error idle1.25.6 10 9292/tcp tkglance hook failed: "update-status" keystone/0 error idle1.25.6 11 tkkeystone hook failed: "update-status" mysql/0 error idle1.25.6 12 tkmysqlhook failed: "config-changed" neutron-api/0 error idle1.25.6 4 9696/tcp tkneutrongwhook failed: "update-status" nova-compute/0 error idle1.25.6 1 tkcompute01hook failed: "update-status" nova-compute/1 error idle1.25.6 2 tkcompute02hook failed: "update-status" nova-compute/2 error idle1.25.6 3 tkcompute03hook failed: "update-status" Lockups: [105601.816578] INFO: task mongod:14480 blocked for more than 120 seconds. [105601.816583] Tainted: P O4.4.0-32-generic #51-Ubuntu [105601.816584] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [105601.816586] mongod D 88010ec47ba8 0 14480 16855 0x0100 [105601.816590] 88010ec47ba8 57992eeb 880108e5ee00 880108e58dc0 [105601.816592] 88010ec48000 88081ecd6d00 7fff 8182a600 [105601.816594] 88010ec47d08 88010ec47bc0 81829e05 [105601.816596] Call Trace: [105601.816603] [] ? bit_wait+0x60/0x60 [105601.816606] [] schedule+0x35/0x80 [105601.816608] [] schedule_timeout+0x1b5/0x270 [105601.816612] [] ? find_get_pages_tag+0x109/0x190 [105601.816614] [] ? bit_wait+0x60/0x60 [105601.816616] [] io_schedule_timeout+0xa4/0x110 [105601.816618] [] bit_wait_io+0x1b/0x70 [105601.816620] [] __wait_on_bit+0x5d/0x90 [105601.816622] [] wait_on_page_bit+0xcb/0xf0 [105601.816625] [] ? autoremove_wake_function+0x40/0x40 [105601.816628] [] __filemap_fdatawait_range+0xf3/0x160 [105601.816630] [] filemap_fdatawait_range+0x14/0x30 [105601.816632] [] filemap_write_and_wait_range+0x3f/0x70 [105601.816682] [] zpl_fsync+0x38/0x90 [zfs] [105601.816685] [] vfs_fsync_range+0x4b/0xb0 [105601.816687] [] SyS_msync+0x17e/0x1f0 [105601.816689] [] entry_SYSCALL_64_fastpath+0x16/0x71 [117121.961545] INFO: task txg_sync:4589 blocked for more than 120 seconds. [117121.961549] Tainted: P O4.4.0-32-generic #51-Ubuntu [117121.961550] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [117121.961551] txg_syncD 8807e1fbbaa8 0 4589 2 0x
[Kernel-packages] [Bug 1607355] Re: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs
** Changed in: linux (Ubuntu) Assignee: Rafael David Tinoco (inaddy) => (unassigned) ** Changed in: linux (Ubuntu) Status: In Progress => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1607355 Title: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs Status in linux package in Ubuntu: Incomplete Bug description: I was able to reproduce this 2 or 3 times last 2 days. I have the following setup: Containers for Trusty/kilo service machines: inaddy@workstation:~$ lxc-ls | grep tk tkcephmon01 RUNNING 0 - 192.168.65.52 - tkcephmon02 RUNNING 0 - 192.168.65.51 - tkcephmon03 RUNNING 0 - 192.168.65.48 - tkcinder RUNNING 0 - 192.168.65.49 - tkdash RUNNING 0 - 192.168.65.50 - tkglance RUNNING 0 - 192.168.65.53 - tkjuju RUNNING 0 - 192.168.65.15 - tkkeystone RUNNING 0 - 192.168.65.54 - tkmysql RUNNING 0 - 192.168.65.55 - tknova RUNNING 0 - 192.168.65.56 - tkrabbit RUNNING 0 - 192.168.65.57 - tkswiftproxy RUNNING 0 - 192.168.65.58 - And compute nodes + neutrongw as kvm guests: inaddy@workstation:~$ virsh list --all | grep tk 21tkcompute01running 22tkcompute02running 23tkcompute03running 24tkneutrongwrunning All my LXC containers are on top of ZFS: Linux workstation 4.4.0-32-generic #51-Ubuntu SMP Tue Jul 19 18:09:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux And my KVM guests are on top of ext4 + 1.2 raid0 stripped volume. I'm getting the lockups bellow (usually for mongod, from tkjuju container, the juju controller). After the first lockup appears (schedule timeout coming from zfs sync logic most likely), JuJu controller starts giving me errors on "update-status". From "juju status": glance/0error idle1.25.6 10 9292/tcp tkglance hook failed: "update-status" keystone/0 error idle1.25.6 11 tkkeystone hook failed: "update-status" mysql/0 error idle1.25.6 12 tkmysqlhook failed: "config-changed" neutron-api/0 error idle1.25.6 4 9696/tcp tkneutrongwhook failed: "update-status" nova-compute/0 error idle1.25.6 1 tkcompute01hook failed: "update-status" nova-compute/1 error idle1.25.6 2 tkcompute02hook failed: "update-status" nova-compute/2 error idle1.25.6 3 tkcompute03hook failed: "update-status" Lockups: [105601.816578] INFO: task mongod:14480 blocked for more than 120 seconds. [105601.816583] Tainted: P O4.4.0-32-generic #51-Ubuntu [105601.816584] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [105601.816586] mongod D 88010ec47ba8 0 14480 16855 0x0100 [105601.816590] 88010ec47ba8 57992eeb 880108e5ee00 880108e58dc0 [105601.816592] 88010ec48000 88081ecd6d00 7fff 8182a600 [105601.816594] 88010ec47d08 88010ec47bc0 81829e05 [105601.816596] Call Trace: [105601.816603] [] ? bit_wait+0x60/0x60 [105601.816606] [] schedule+0x35/0x80 [105601.816608] [] schedule_timeout+0x1b5/0x270 [105601.816612] [] ? find_get_pages_tag+0x109/0x190 [105601.816614] [] ? bit_wait+0x60/0x60 [105601.816616] [] io_schedule_timeout+0xa4/0x110 [105601.816618] [] bit_wait_io+0x1b/0x70 [105601.816620] [] __wait_on_bit+0x5d/0x90 [105601.816622] [] wait_on_page_bit+0xcb/0xf0 [105601.816625] [] ? autoremove_wake_function+0x40/0x40 [105601.816628] [] __filemap_fdatawait_range+0xf3/0x160 [105601.816630] [] filemap_fdatawait_range+0x14/0x30 [105601.816632] [] filemap_write_and_wait_range+0x3f/0x70 [105601.816682] [] zpl_fsync+0x38/0x90 [zfs] [105601.816685] [] vfs_fsync_range+0x4b/0xb0 [105601.816687] [] SyS_msync+0x17e/0x1f0 [105601.816689] [] entry_SYSCALL_64_fastpath+0x16/0x71 [117121.961545] INFO: task txg_sync:4589 blocked for more than 120 seconds. [117121.961549] Tainted: P O4.4.0-32-generic #51-Ubuntu [117121.961550] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [117121.961551] txg_syncD 8807e1fbbaa8 0 4589 2
[Kernel-packages] [Bug 1607355] Re: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs
Got some more stack traces: [22201.670647] INFO: task mongod:1917 blocked for more than 120 seconds. [22201.670650] Tainted: P O4.4.0-34-generic #53-Ubuntu [22201.670651] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [22201.670653] mongod D 8805aecefba8 0 1917 5819 0x0100 [22201.670655] 8805aecefba8 579b1d9a 8807faf06040 8806d6238000 [22201.670657] 8805aecf 88081edd6d00 7fff 8182a610 [22201.670659] 8805aecefd08 8805aecefbc0 81829e15 [22201.670661] Call Trace: [22201.670666] [] ? bit_wait+0x60/0x60 [22201.670668] [] schedule+0x35/0x80 [22201.670670] [] schedule_timeout+0x1b5/0x270 [22201.670673] [] ? find_get_pages_tag+0x109/0x190 [22201.670675] [] ? bit_wait+0x60/0x60 [22201.670676] [] io_schedule_timeout+0xa4/0x110 [22201.670678] [] bit_wait_io+0x1b/0x70 [22201.670680] [] __wait_on_bit+0x5d/0x90 [22201.670682] [] wait_on_page_bit+0xcb/0xf0 [22201.670684] [] ? autoremove_wake_function+0x40/0x40 [22201.670686] [] __filemap_fdatawait_range+0xf3/0x160 [22201.670688] [] ? __filemap_fdatawrite_range+0xd1/0x100 [22201.670690] [] filemap_fdatawait_range+0x14/0x30 [22201.670691] [] filemap_write_and_wait_range+0x3f/0x70 [22201.670732] [] zpl_fsync+0x38/0x90 [zfs] [22201.670734] [] vfs_fsync_range+0x4b/0xb0 [22201.670736] [] SyS_msync+0x17e/0x1f0 [22201.670738] [] entry_SYSCALL_64_fastpath+0x16/0x71 [85684.344389] INFO: task mongod:1917 blocked for more than 120 seconds. [85684.344393] Tainted: P O4.4.0-34-generic #53-Ubuntu [85684.344394] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [85684.344395] mongod D 8805aecefba8 0 1917 5819 0x0100 [85684.344398] 8805aecefba8 0003 81e11500 8806d6238000 [85684.344400] 8805aecf 88081ec16d00 7fff 8182a610 [85684.344402] 8805aecefd08 8805aecefbc0 81829e15 [85684.344403] Call Trace: [85684.344409] [] ? bit_wait+0x60/0x60 [85684.344411] [] schedule+0x35/0x80 [85684.344413] [] schedule_timeout+0x1b5/0x270 [85684.344416] [] ? find_get_pages_tag+0x109/0x190 [85684.344418] [] ? bit_wait+0x60/0x60 [85684.344419] [] io_schedule_timeout+0xa4/0x110 [85684.344421] [] bit_wait_io+0x1b/0x70 [85684.344423] [] __wait_on_bit+0x5d/0x90 [85684.344425] [] wait_on_page_bit+0xcb/0xf0 [85684.344427] [] ? autoremove_wake_function+0x40/0x40 [85684.344429] [] __filemap_fdatawait_range+0xf3/0x160 [85684.344431] [] ? __filemap_fdatawrite_range+0xd1/0x100 [85684.344432] [] filemap_fdatawait_range+0x14/0x30 [85684.344434] [] filemap_write_and_wait_range+0x3f/0x70 [85684.344477] [] zpl_fsync+0x38/0x90 [zfs] [85684.344479] [] vfs_fsync_range+0x4b/0xb0 [85684.344481] [] SyS_msync+0x17e/0x1f0 [85684.344483] [] entry_SYSCALL_64_fastpath+0x16/0x71 [110165.396049] INFO: task mongod:1917 blocked for more than 120 seconds. [110165.396053] Tainted: P O4.4.0-34-generic #53-Ubuntu [110165.396054] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [110165.396055] mongod D 8805aecefba8 0 1917 5819 0x0100 [110165.396058] 8805aecefba8 579c74f7 8807faf02940 8806d6238000 [110165.396060] 8805aecf 88081ecd6d00 7fff 8182a610 [110165.396062] 8805aecefd08 8805aecefbc0 81829e15 [110165.396064] Call Trace: [110165.396070] [] ? bit_wait+0x60/0x60 [110165.396072] [] schedule+0x35/0x80 [110165.396074] [] schedule_timeout+0x1b5/0x270 [110165.396076] [] ? find_get_pages_tag+0x109/0x190 [110165.396078] [] ? bit_wait+0x60/0x60 [110165.396080] [] io_schedule_timeout+0xa4/0x110 [110165.396082] [] bit_wait_io+0x1b/0x70 [110165.396083] [] __wait_on_bit+0x5d/0x90 [110165.396085] [] wait_on_page_bit+0xcb/0xf0 [110165.396088] [] ? autoremove_wake_function+0x40/0x40 [110165.396090] [] __filemap_fdatawait_range+0xf3/0x160 [110165.396091] [] ? __filemap_fdatawrite_range+0xd1/0x100 [110165.396093] [] filemap_fdatawait_range+0x14/0x30 [110165.396094] [] filemap_write_and_wait_range+0x3f/0x70 [110165.396137] [] zpl_fsync+0x38/0x90 [zfs] [110165.396139] [] vfs_fsync_range+0x4b/0xb0 [110165.396141] [] SyS_msync+0x17e/0x1f0 [110165.396143] [] entry_SYSCALL_64_fastpath+0x16/0x71 [132726.355047] INFO: task mongod:1917 blocked for more than 120 seconds. [132726.355062] Tainted: P O4.4.0-34-generic #53-Ubuntu [132726.355063] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [132726.355065] mongod D 8805aecefba8 0 1917 5819 0x0100 [132726.355067] 8805aecefba8 0003 8806d623e040 8806d6238000 [132726.355069] 8805aecf 88081ed56d00 7fff 8182a610 [132726.355071] 8805aecefd08 8805aecefbc0
[Kernel-packages] [Bug 1607355] Re: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs
** Changed in: linux (Ubuntu) Status: Incomplete => In Progress ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Rafael David Tinoco (inaddy) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1607355 Title: Task (usually mongod) blocked more 120 seconds (lock-ups) in juju on lxc/lxd + zfs Status in linux package in Ubuntu: In Progress Bug description: I was able to reproduce this 2 or 3 times last 2 days. I have the following setup: Containers for Trusty/kilo service machines: inaddy@workstation:~$ lxc-ls | grep tk tkcephmon01 RUNNING 0 - 192.168.65.52 - tkcephmon02 RUNNING 0 - 192.168.65.51 - tkcephmon03 RUNNING 0 - 192.168.65.48 - tkcinder RUNNING 0 - 192.168.65.49 - tkdash RUNNING 0 - 192.168.65.50 - tkglance RUNNING 0 - 192.168.65.53 - tkjuju RUNNING 0 - 192.168.65.15 - tkkeystone RUNNING 0 - 192.168.65.54 - tkmysql RUNNING 0 - 192.168.65.55 - tknova RUNNING 0 - 192.168.65.56 - tkrabbit RUNNING 0 - 192.168.65.57 - tkswiftproxy RUNNING 0 - 192.168.65.58 - And compute nodes + neutrongw as kvm guests: inaddy@workstation:~$ virsh list --all | grep tk 21tkcompute01running 22tkcompute02running 23tkcompute03running 24tkneutrongwrunning All my LXC containers are on top of ZFS: Linux workstation 4.4.0-32-generic #51-Ubuntu SMP Tue Jul 19 18:09:07 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux And my KVM guests are on top of ext4 + 1.2 raid0 stripped volume. I'm getting the lockups bellow (usually for mongod, from tkjuju container, the juju controller). After the first lockup appears (schedule timeout coming from zfs sync logic most likely), JuJu controller starts giving me errors on "update-status". From "juju status": glance/0error idle1.25.6 10 9292/tcp tkglance hook failed: "update-status" keystone/0 error idle1.25.6 11 tkkeystone hook failed: "update-status" mysql/0 error idle1.25.6 12 tkmysqlhook failed: "config-changed" neutron-api/0 error idle1.25.6 4 9696/tcp tkneutrongwhook failed: "update-status" nova-compute/0 error idle1.25.6 1 tkcompute01hook failed: "update-status" nova-compute/1 error idle1.25.6 2 tkcompute02hook failed: "update-status" nova-compute/2 error idle1.25.6 3 tkcompute03hook failed: "update-status" Lockups: [105601.816578] INFO: task mongod:14480 blocked for more than 120 seconds. [105601.816583] Tainted: P O4.4.0-32-generic #51-Ubuntu [105601.816584] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [105601.816586] mongod D 88010ec47ba8 0 14480 16855 0x0100 [105601.816590] 88010ec47ba8 57992eeb 880108e5ee00 880108e58dc0 [105601.816592] 88010ec48000 88081ecd6d00 7fff 8182a600 [105601.816594] 88010ec47d08 88010ec47bc0 81829e05 [105601.816596] Call Trace: [105601.816603] [] ? bit_wait+0x60/0x60 [105601.816606] [] schedule+0x35/0x80 [105601.816608] [] schedule_timeout+0x1b5/0x270 [105601.816612] [] ? find_get_pages_tag+0x109/0x190 [105601.816614] [] ? bit_wait+0x60/0x60 [105601.816616] [] io_schedule_timeout+0xa4/0x110 [105601.816618] [] bit_wait_io+0x1b/0x70 [105601.816620] [] __wait_on_bit+0x5d/0x90 [105601.816622] [] wait_on_page_bit+0xcb/0xf0 [105601.816625] [] ? autoremove_wake_function+0x40/0x40 [105601.816628] [] __filemap_fdatawait_range+0xf3/0x160 [105601.816630] [] filemap_fdatawait_range+0x14/0x30 [105601.816632] [] filemap_write_and_wait_range+0x3f/0x70 [105601.816682] [] zpl_fsync+0x38/0x90 [zfs] [105601.816685] [] vfs_fsync_range+0x4b/0xb0 [105601.816687] [] SyS_msync+0x17e/0x1f0 [105601.816689] [] entry_SYSCALL_64_fastpath+0x16/0x71 [117121.961545] INFO: task txg_sync:4589 blocked for more than 120 seconds. [117121.961549] Tainted: P O4.4.0-32-generic #51-Ubuntu [117121.961550] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
