[Kernel-packages] [Bug 1869372] [NEW] Popping/crackling noise when sound card wakes from powersaving
Public bug reported: I could not find an existing report on this. When Ubuntu 20.04 does powersaving, the audio card powers down. When the card powers up again, it emits a short annoying popping/crackling noise, then audio plays just fine. The workaround is to disable power-saving for the audio card, by adding options snd_hda_intel power_save=0 power_save_controller=N to a file in /etc/modprobe.d/alsa-intel-no-powersave.conf and then reboot. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Description changed: I could not find an existing report on this. - When Ubuntu does powersaving, the audio card powers down. + When Ubuntu 20.04 does powersaving, the audio card powers down. When the card powers up again, it emits a short annoying popping/crackling noise, then audio plays just fine. The workaround is to disable power-saving for the audio card, by adding options snd_hda_intel power_save=0 power_save_controller=N to a file in /etc/modprobe.d/alsa-intel-no-powersave.conf and then reboot. -- 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/1869372 Title: Popping/crackling noise when sound card wakes from powersaving Status in linux package in Ubuntu: New Bug description: I could not find an existing report on this. When Ubuntu 20.04 does powersaving, the audio card powers down. When the card powers up again, it emits a short annoying popping/crackling noise, then audio plays just fine. The workaround is to disable power-saving for the audio card, by adding options snd_hda_intel power_save=0 power_save_controller=N to a file in /etc/modprobe.d/alsa-intel-no-powersave.conf and then reboot. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869372/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1773392] Re: zfs hangs on mount/unmount
Upstream bug report and pull request to try: "Kernel error "task zfs:pid blocked for more than 120 seconds" #7691" https://github.com/zfsonlinux/zfs/issues/7691 "Fix zpl_mount() deadlock #7693" https://github.com/zfsonlinux/zfs/pull/7693 ** Bug watch added: Github Issue Tracker for ZFS #7691 https://github.com/zfsonlinux/zfs/issues/7691 ** Also affects: linux via https://github.com/zfsonlinux/zfs/issues/7691 Importance: Unknown Status: Unknown -- 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/1773392 Title: zfs hangs on mount/unmount Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Bug description: I am running lxd 3.0 on ubuntu 18.04 with kernel 4.15.0-22-generic and 4.15.0-20-generic (same behaviour) with zfs backend (0.7.5-1ubuntu16; also tried 0.7.9). Sometimes lxd hangs when I try to stop / restart or "stop && move" some containers. Furhter investigation showed that problem is in zfs mount or unmount: it just hangs and lxd just wait it. Also commands like "zfs list" hangs to. It seems that it is not lxd or zfs issue, but kernel bug? https://github.com/lxc/lxd/issues/4104#issuecomment-392072939 I have one test ct that always hangs on restart, so here is info: dmesg: [ 1330.390938] INFO: task txg_sync:9944 blocked for more than 120 seconds. [ 1330.390994] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.391044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.391101] txg_syncD0 9944 2 0x8000 [ 1330.391105] Call Trace: [ 1330.391117] __schedule+0x297/0x8b0 [ 1330.391122] schedule+0x2c/0x80 [ 1330.391136] cv_wait_common+0x11e/0x140 [spl] [ 1330.391141] ? wait_woken+0x80/0x80 [ 1330.391152] __cv_wait+0x15/0x20 [spl] [ 1330.391234] rrw_enter_write+0x3c/0xa0 [zfs] [ 1330.391306] rrw_enter+0x13/0x20 [zfs] [ 1330.391380] spa_sync+0x7c9/0xd80 [zfs] [ 1330.391457] txg_sync_thread+0x2cd/0x4a0 [zfs] [ 1330.391534] ? txg_quiesce_thread+0x3d0/0x3d0 [zfs] [ 1330.391543] thread_generic_wrapper+0x74/0x90 [spl] [ 1330.391549] kthread+0x121/0x140 [ 1330.391558] ? __thread_exit+0x20/0x20 [spl] [ 1330.391562] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1330.391566] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1330.391569] ret_from_fork+0x35/0x40 [ 1330.391582] INFO: task lxd:12419 blocked for more than 120 seconds. [ 1330.391630] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.391679] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.391735] lxd D0 12419 1 0x [ 1330.391739] Call Trace: [ 1330.391745] __schedule+0x297/0x8b0 [ 1330.391749] schedule+0x2c/0x80 [ 1330.391752] rwsem_down_write_failed+0x162/0x360 [ 1330.391808] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 1330.391814] call_rwsem_down_write_failed+0x17/0x30 [ 1330.391817] ? call_rwsem_down_write_failed+0x17/0x30 [ 1330.391821] down_write+0x2d/0x40 [ 1330.391825] grab_super+0x30/0x90 [ 1330.391901] ? zpl_create+0x160/0x160 [zfs] [ 1330.391905] sget_userns+0x91/0x490 [ 1330.391908] ? get_anon_bdev+0x100/0x100 [ 1330.391983] ? zpl_create+0x160/0x160 [zfs] [ 1330.391987] sget+0x7d/0xa0 [ 1330.391990] ? get_anon_bdev+0x100/0x100 [ 1330.392066] zpl_mount+0xa8/0x160 [zfs] [ 1330.392071] mount_fs+0x37/0x150 [ 1330.392077] vfs_kern_mount.part.23+0x5d/0x110 [ 1330.392080] do_mount+0x5ed/0xce0 [ 1330.392083] ? copy_mount_options+0x2c/0x220 [ 1330.392086] SyS_mount+0x98/0xe0 [ 1330.392092] do_syscall_64+0x73/0x130 [ 1330.392096] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1330.392099] RIP: 0033:0x4db36a [ 1330.392101] RSP: 002b:00c4207fa768 EFLAGS: 0216 ORIG_RAX: 00a5 [ 1330.392104] RAX: ffda RBX: RCX: 004db36a [ 1330.392106] RDX: 00c4205984cc RSI: 00c420a6ee00 RDI: 00c420a23b60 [ 1330.392108] RBP: 00c4207fa808 R08: 00c4209d4960 R09: [ 1330.392110] R10: R11: 0216 R12: [ 1330.392112] R13: 0039 R14: 0038 R15: 0080 [ 1330.392123] INFO: task lxd:16725 blocked for more than 120 seconds. [ 1330.392171] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.392220] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.392276] lxd D0 16725 1 0x0002 [ 1330.392279] Call Trace: [ 1330.392284] __schedule+0x297/0x8b0 [ 1330.392289] ? irq_work_queue+0x8d/0xa0 [ 1330.392293] schedule+0x2c/0x80 [ 1330.392297] io_schedule+0x16/0x40 [ 1330.392302] wait_on_page_bit_common+0xd8/0x160 [ 1330.392305] ? page_cache_tree_insert+0xe0/0xe0 [ 1330.392309]
[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 1773392] Re: zfs hangs on mount/unmount
** Bug watch added: Github Issue Tracker for ZFS #7659 https://github.com/zfsonlinux/zfs/issues/7659 ** Changed in: linux Status: Fix Released => Unknown ** Changed in: linux Remote watch: Github Issue Tracker for ZFS #7691 => Github Issue Tracker for ZFS #7659 -- 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/1773392 Title: zfs hangs on mount/unmount Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Bug description: I am running lxd 3.0 on ubuntu 18.04 with kernel 4.15.0-22-generic and 4.15.0-20-generic (same behaviour) with zfs backend (0.7.5-1ubuntu16; also tried 0.7.9). Sometimes lxd hangs when I try to stop / restart or "stop && move" some containers. Furhter investigation showed that problem is in zfs mount or unmount: it just hangs and lxd just wait it. Also commands like "zfs list" hangs to. It seems that it is not lxd or zfs issue, but kernel bug? https://github.com/lxc/lxd/issues/4104#issuecomment-392072939 I have one test ct that always hangs on restart, so here is info: dmesg: [ 1330.390938] INFO: task txg_sync:9944 blocked for more than 120 seconds. [ 1330.390994] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.391044] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.391101] txg_syncD0 9944 2 0x8000 [ 1330.391105] Call Trace: [ 1330.391117] __schedule+0x297/0x8b0 [ 1330.391122] schedule+0x2c/0x80 [ 1330.391136] cv_wait_common+0x11e/0x140 [spl] [ 1330.391141] ? wait_woken+0x80/0x80 [ 1330.391152] __cv_wait+0x15/0x20 [spl] [ 1330.391234] rrw_enter_write+0x3c/0xa0 [zfs] [ 1330.391306] rrw_enter+0x13/0x20 [zfs] [ 1330.391380] spa_sync+0x7c9/0xd80 [zfs] [ 1330.391457] txg_sync_thread+0x2cd/0x4a0 [zfs] [ 1330.391534] ? txg_quiesce_thread+0x3d0/0x3d0 [zfs] [ 1330.391543] thread_generic_wrapper+0x74/0x90 [spl] [ 1330.391549] kthread+0x121/0x140 [ 1330.391558] ? __thread_exit+0x20/0x20 [spl] [ 1330.391562] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1330.391566] ? kthread_create_worker_on_cpu+0x70/0x70 [ 1330.391569] ret_from_fork+0x35/0x40 [ 1330.391582] INFO: task lxd:12419 blocked for more than 120 seconds. [ 1330.391630] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.391679] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.391735] lxd D0 12419 1 0x [ 1330.391739] Call Trace: [ 1330.391745] __schedule+0x297/0x8b0 [ 1330.391749] schedule+0x2c/0x80 [ 1330.391752] rwsem_down_write_failed+0x162/0x360 [ 1330.391808] ? dbuf_rele_and_unlock+0x1a8/0x4b0 [zfs] [ 1330.391814] call_rwsem_down_write_failed+0x17/0x30 [ 1330.391817] ? call_rwsem_down_write_failed+0x17/0x30 [ 1330.391821] down_write+0x2d/0x40 [ 1330.391825] grab_super+0x30/0x90 [ 1330.391901] ? zpl_create+0x160/0x160 [zfs] [ 1330.391905] sget_userns+0x91/0x490 [ 1330.391908] ? get_anon_bdev+0x100/0x100 [ 1330.391983] ? zpl_create+0x160/0x160 [zfs] [ 1330.391987] sget+0x7d/0xa0 [ 1330.391990] ? get_anon_bdev+0x100/0x100 [ 1330.392066] zpl_mount+0xa8/0x160 [zfs] [ 1330.392071] mount_fs+0x37/0x150 [ 1330.392077] vfs_kern_mount.part.23+0x5d/0x110 [ 1330.392080] do_mount+0x5ed/0xce0 [ 1330.392083] ? copy_mount_options+0x2c/0x220 [ 1330.392086] SyS_mount+0x98/0xe0 [ 1330.392092] do_syscall_64+0x73/0x130 [ 1330.392096] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1330.392099] RIP: 0033:0x4db36a [ 1330.392101] RSP: 002b:00c4207fa768 EFLAGS: 0216 ORIG_RAX: 00a5 [ 1330.392104] RAX: ffda RBX: RCX: 004db36a [ 1330.392106] RDX: 00c4205984cc RSI: 00c420a6ee00 RDI: 00c420a23b60 [ 1330.392108] RBP: 00c4207fa808 R08: 00c4209d4960 R09: [ 1330.392110] R10: R11: 0216 R12: [ 1330.392112] R13: 0039 R14: 0038 R15: 0080 [ 1330.392123] INFO: task lxd:16725 blocked for more than 120 seconds. [ 1330.392171] Tainted: P O 4.15.0-22-generic #24-Ubuntu [ 1330.392220] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1330.392276] lxd D0 16725 1 0x0002 [ 1330.392279] Call Trace: [ 1330.392284] __schedule+0x297/0x8b0 [ 1330.392289] ? irq_work_queue+0x8d/0xa0 [ 1330.392293] schedule+0x2c/0x80 [ 1330.392297] io_schedule+0x16/0x40 [ 1330.392302] wait_on_page_bit_common+0xd8/0x160 [ 1330.392305] ? page_cache_tree_insert+0xe0/0xe0 [ 1330.392309] __filemap_fdatawait_range+0xfa/0x160 [ 1330.392313] ? _cond_resched+0x19/0x40 [ 1330.392317] ? bdi_split_work_to_wbs+0x45/0x2c0 [ 1330.392321] ? _cond_resched+0x19/0x40 [ 1330.39232
[Kernel-packages] [Bug 1781601] [NEW] Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn)
Public bug reported: I have been stress-testing LXD and managed to cause the following kernel hung: [10271.564074] INFO: task systemd:1 blocked for more than 120 seconds. [10271.570397] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.577212] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.585071] systemd D0 1 0 0x [10271.585073] Call Trace: [10271.585080] __schedule+0x297/0x8b0 [10271.585086] schedule+0x2c/0x80 [10271.585090] schedule_preempt_disabled+0xe/0x10 [10271.585095] __mutex_lock.isra.2+0x18c/0x4d0 [10271.585100] __mutex_lock_slowpath+0x13/0x20 [10271.585101] ? __mutex_lock_slowpath+0x13/0x20 [10271.585102] mutex_lock+0x2f/0x40 [10271.585106] proc_cgroup_show+0x4c/0x2a0 [10271.585108] proc_single_show+0x56/0x80 [10271.585111] seq_read+0xe5/0x430 [10271.585114] __vfs_read+0x1b/0x40 [10271.585115] vfs_read+0x8e/0x130 [10271.585117] SyS_read+0x55/0xc0 [10271.585120] do_syscall_64+0x73/0x130 [10271.585121] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.585123] RIP: 0033:0x7fd47634d0b4 [10271.585124] RSP: 002b:7ffe9a186700 EFLAGS: 0246 ORIG_RAX: [10271.585125] RAX: ffda RBX: 0021 RCX: 7fd47634d0b4 [10271.585126] RDX: 0400 RSI: 55f70a08c0c0 RDI: 0021 [10271.585127] RBP: 55f70a08c0c0 R08: R09: [10271.585128] R10: R11: 0246 R12: 0400 [10271.585129] R13: 7fd4766252a0 R14: 55f70a0298e0 R15: 07ff [10271.585221] INFO: task lxcfs:84510 blocked for more than 120 seconds. [10271.591687] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.598531] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.606401] lxcfs D0 84510 1 0x [10271.606407] Call Trace: [10271.606416] __schedule+0x297/0x8b0 [10271.606418] schedule+0x2c/0x80 [10271.606420] schedule_preempt_disabled+0xe/0x10 [10271.606421] __mutex_lock.isra.2+0x18c/0x4d0 [10271.606423] __mutex_lock_slowpath+0x13/0x20 [10271.606424] ? __mutex_lock_slowpath+0x13/0x20 [10271.606425] mutex_lock+0x2f/0x40 [10271.606427] proc_cgroup_show+0x4c/0x2a0 [10271.606429] proc_single_show+0x56/0x80 [10271.606432] seq_read+0xe5/0x430 [10271.606434] __vfs_read+0x1b/0x40 [10271.606436] vfs_read+0x8e/0x130 [10271.606437] SyS_read+0x55/0xc0 [10271.606440] do_syscall_64+0x73/0x130 [10271.606441] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.606443] RIP: 0033:0x7f1a50e700b4 [10271.606443] RSP: 002b:7f1a2b7fd870 EFLAGS: 0246 ORIG_RAX: [10271.606445] RAX: ffda RBX: 0013 RCX: 7f1a50e700b4 [10271.606446] RDX: 0400 RSI: 7f1a04000f90 RDI: 0013 [10271.606446] RBP: 7f1a04000f90 R08: 0001 R09: [10271.606447] R10: R11: 0246 R12: 0400 [10271.606448] R13: 7f1a511482a0 R14: R15: 7f1a38003a40 [10271.606450] INFO: task lxcfs:84676 blocked for more than 120 seconds. [10271.612911] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.619722] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.627577] lxcfs D0 84676 1 0x [10271.627579] Call Trace: [10271.627583] __schedule+0x297/0x8b0 [10271.627589] schedule+0x2c/0x80 [10271.627594] schedule_preempt_disabled+0xe/0x10 [10271.627598] __mutex_lock.isra.2+0x18c/0x4d0 [10271.627600] __mutex_lock_slowpath+0x13/0x20 [10271.627601] ? __mutex_lock_slowpath+0x13/0x20 [10271.627602] mutex_lock+0x2f/0x40 [10271.627604] proc_cgroup_show+0x4c/0x2a0 [10271.627606] proc_single_show+0x56/0x80 [10271.627608] seq_read+0xe5/0x430 [10271.627610] __vfs_read+0x1b/0x40 [10271.627611] vfs_read+0x8e/0x130 [10271.627613] SyS_read+0x55/0xc0 [10271.627615] do_syscall_64+0x73/0x130 [10271.627617] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.627618] RIP: 0033:0x7f1a50e700b4 [10271.627618] RSP: 002b:7f1a297f9870 EFLAGS: 0246 ORIG_RAX: [10271.627620] RAX: ffda RBX: 0014 RCX: 7f1a50e700b4 [10271.627620] RDX: 0400 RSI: 7f1a2c001e80 RDI: 0014 [10271.627621] RBP: 7f1a2c001e80 R08: 0001 R09: [10271.627622] R10: R11: 0246 R12: 0400 [10271.627622] R13: 7f1a511482a0 R14: R15: 7f1a2c002b10 [10271.627625] INFO: task lxcfs:115507 blocked for more than 120 seconds. [10271.634180] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.641007] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.648870] lxcfs D0 115507 1 0x [10271.648872] Call Trace: [10271.648876] __schedule+0x297/0x8b0 [10271.648883] schedule+0x2c/0x80
[Kernel-packages] [Bug 1781364] Re: Kernel error "task zfs:pid blocked for more than 120 seconds"
zfsutils-linux (zfs-linux, zfs-linux_0.7.5-1ubuntu16.3) is already in proposed, https://launchpad.net/ubuntu/bionic/+queue?queue_state=3&queue_text=zfs-linux Please report when linux-image gets into -proposed, https://launchpad.net/ubuntu/bionic/+queue?queue_state=3&queue_text=linux-image -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1781364 Title: Kernel error "task zfs:pid blocked for more than 120 seconds" Status in Linux: Fix Released Status in linux package in Ubuntu: Fix Committed Status in zfs-linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Confirmed Status in zfs-linux source package in Xenial: Confirmed Status in linux source package in Bionic: Confirmed Status in zfs-linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in zfs-linux source package in Cosmic: Fix Released Bug description: == SRU Justification, XENIAL, BIONIC == Exercising ZFS with lxd with many mount/umounts can cause lockups and 120 second timeout messages. == How to reproduce bug == In a VM, 2 CPUs, 16GB of memory running Bionic: sudo apt update sudo apt install lxd lxd-client lxd-tools zfsutils-linux sudo lxd init (and with the default init options) then run: lxd-benchmark launch --count 96 --parallel 96 This will reliably show the lockup every time without the fix. With the fix (detailed below) one cannot reproduce the lockup. == Fix == Upstream ZFS commit commit ac09630d8b0bf6c92084a30fdaefd03fd0adbdc1 Author: Brian Behlendorf Date: Wed Jul 11 15:49:10 2018 -0700 Fix zpl_mount() deadlock == Regression Potential == This just changes the locking in the mount path of ZFS and will only affect ZFS mount/unmounts. The regression potential is small as this touches a very small code path that has been exhaustively exercises this code under multiple thread/CPU contention and shown not to break. -- ZFS bug report: https://github.com/zfsonlinux/zfs/issues/7691 "I am using LXD containers that are configured to use a ZFS storage backend. I create many containers using a benchmark tool, which probably stresses the use of ZFS. In two out of four attempts, I got [ 725.970508] INFO: task lxd:4455 blocked for more than 120 seconds. [ 725.976730] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 725.983551] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 725.991624] INFO: task txg_sync:4202 blocked for more than 120 seconds. [ 725.998264] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.005071] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.013313] INFO: task lxd:99919 blocked for more than 120 seconds. [ 726.019609] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.026418] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.034560] INFO: task zfs:100513 blocked for more than 120 seconds. [ 726.040936] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.047746] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.055791] INFO: task zfs:100584 blocked for more than 120 seconds. [ 726.062170] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.068979] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Describe how to reproduce the problem Start an Ubuntu 18.04 LTS server. Install LXD if not already installed. sudo apt update sudo apt install lxd lxd-client lxd-tools zfsutils-linux Configure LXD with sudo lxd init. When prompted for the storage backend, select ZFS and specify an empty disk. $ sudo lxd init Would you like to use LXD clustering? (yes/no) [default=no]: Do you want to configure a new storage pool? (yes/no) [default=yes]: Name of the new storage pool [default=default]: Name of the storage backend to use (dir, zfs) [default=zfs]: Create a new ZFS pool? (yes/no) [default=yes]: Would you like to use an existing block device? (yes/no) [default=no]: yes Path to the existing block device: /dev/sdb Would you like to connect to a MAAS server? (yes/no) [default=no]: Would you like to create a new local network bridge? (yes/no) [default=yes]: no Would you like to configure LXD to use an existing bridge or host interface? (yes/no) [default=no]: no Would you like LXD to be available over the network? (yes/no) [default=no]: Would you like stale cached images to be updated automatically? (yes/no) [default=yes] Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: Now run the following to launch 48 containers in batches of 12. lxd-benchmark launch --count
[Kernel-packages] [Bug 1781601] Re: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn)
I have been doing stress-testing on LXD at a freshly installed 18.04. The Linux kernel was the standard 18.04 kernel. LXD though was compiled from master, ZFS was also compile from master. I performed the stress-testing by running the command lxd-benchmark --count 384 --parallel 24 This launches 384 Ubuntu 16.04 containers in batches of 24 containers. LXD does not run well on the mainline Linux kernel because I think some necessary patches have not been upstreamed yet. I plan to do more stress testing, and when I get the same issue, I'll run apport to retrieve information from the system to attach here. Obviously, when I deploy the server, I'll prepare it for apport beforehand. -- 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/1781601 Title: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn) Status in linux package in Ubuntu: Incomplete Status in linux source package in Bionic: Incomplete Bug description: I have been stress-testing LXD and managed to cause the following kernel hung: [10271.564074] INFO: task systemd:1 blocked for more than 120 seconds. [10271.570397] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.577212] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.585071] systemd D0 1 0 0x [10271.585073] Call Trace: [10271.585080] __schedule+0x297/0x8b0 [10271.585086] schedule+0x2c/0x80 [10271.585090] schedule_preempt_disabled+0xe/0x10 [10271.585095] __mutex_lock.isra.2+0x18c/0x4d0 [10271.585100] __mutex_lock_slowpath+0x13/0x20 [10271.585101] ? __mutex_lock_slowpath+0x13/0x20 [10271.585102] mutex_lock+0x2f/0x40 [10271.585106] proc_cgroup_show+0x4c/0x2a0 [10271.585108] proc_single_show+0x56/0x80 [10271.585111] seq_read+0xe5/0x430 [10271.585114] __vfs_read+0x1b/0x40 [10271.585115] vfs_read+0x8e/0x130 [10271.585117] SyS_read+0x55/0xc0 [10271.585120] do_syscall_64+0x73/0x130 [10271.585121] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.585123] RIP: 0033:0x7fd47634d0b4 [10271.585124] RSP: 002b:7ffe9a186700 EFLAGS: 0246 ORIG_RAX: [10271.585125] RAX: ffda RBX: 0021 RCX: 7fd47634d0b4 [10271.585126] RDX: 0400 RSI: 55f70a08c0c0 RDI: 0021 [10271.585127] RBP: 55f70a08c0c0 R08: R09: [10271.585128] R10: R11: 0246 R12: 0400 [10271.585129] R13: 7fd4766252a0 R14: 55f70a0298e0 R15: 07ff [10271.585221] INFO: task lxcfs:84510 blocked for more than 120 seconds. [10271.591687] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.598531] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.606401] lxcfs D0 84510 1 0x [10271.606407] Call Trace: [10271.606416] __schedule+0x297/0x8b0 [10271.606418] schedule+0x2c/0x80 [10271.606420] schedule_preempt_disabled+0xe/0x10 [10271.606421] __mutex_lock.isra.2+0x18c/0x4d0 [10271.606423] __mutex_lock_slowpath+0x13/0x20 [10271.606424] ? __mutex_lock_slowpath+0x13/0x20 [10271.606425] mutex_lock+0x2f/0x40 [10271.606427] proc_cgroup_show+0x4c/0x2a0 [10271.606429] proc_single_show+0x56/0x80 [10271.606432] seq_read+0xe5/0x430 [10271.606434] __vfs_read+0x1b/0x40 [10271.606436] vfs_read+0x8e/0x130 [10271.606437] SyS_read+0x55/0xc0 [10271.606440] do_syscall_64+0x73/0x130 [10271.606441] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.606443] RIP: 0033:0x7f1a50e700b4 [10271.606443] RSP: 002b:7f1a2b7fd870 EFLAGS: 0246 ORIG_RAX: [10271.606445] RAX: ffda RBX: 0013 RCX: 7f1a50e700b4 [10271.606446] RDX: 0400 RSI: 7f1a04000f90 RDI: 0013 [10271.606446] RBP: 7f1a04000f90 R08: 0001 R09: [10271.606447] R10: R11: 0246 R12: 0400 [10271.606448] R13: 7f1a511482a0 R14: R15: 7f1a38003a40 [10271.606450] INFO: task lxcfs:84676 blocked for more than 120 seconds. [10271.612911] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.619722] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.627577] lxcfs D0 84676 1 0x [10271.627579] Call Trace: [10271.627583] __schedule+0x297/0x8b0 [10271.627589] schedule+0x2c/0x80 [10271.627594] schedule_preempt_disabled+0xe/0x10 [10271.627598] __mutex_lock.isra.2+0x18c/0x4d0 [10271.627600] __mutex_lock_slowpath+0x13/0x20 [10271.627601] ? __mutex_lock_slowpath+0x13/0x20 [10271.627602] mutex_lock+0x2f/0x40 [10271.627604] proc_cgroup_show+0x4c/0x2a0 [10271.627606]
[Kernel-packages] [Bug 1781364] Re: Kernel error "task zfs:pid blocked for more than 120 seconds"
@Vasiliy: Indeed. The version in -proposed is "4.15.0-29.31" (source: https://launchpad.net/ubuntu/bionic/+queue?queue_state=3&queue_text =linux-image) The page for that version at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1782173 does not have a reference to this bug number #1781364. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1781364 Title: Kernel error "task zfs:pid blocked for more than 120 seconds" Status in Linux: Fix Released Status in linux package in Ubuntu: Fix Committed Status in zfs-linux package in Ubuntu: Fix Released Status in linux source package in Xenial: Confirmed Status in zfs-linux source package in Xenial: Confirmed Status in linux source package in Bionic: Confirmed Status in zfs-linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in zfs-linux source package in Cosmic: Fix Released Bug description: == SRU Justification, XENIAL, BIONIC == Exercising ZFS with lxd with many mount/umounts can cause lockups and 120 second timeout messages. == How to reproduce bug == In a VM, 2 CPUs, 16GB of memory running Bionic: sudo apt update sudo apt install lxd lxd-client lxd-tools zfsutils-linux sudo lxd init (and with the default init options) then run: lxd-benchmark launch --count 96 --parallel 96 This will reliably show the lockup every time without the fix. With the fix (detailed below) one cannot reproduce the lockup. == Fix == Upstream ZFS commit commit ac09630d8b0bf6c92084a30fdaefd03fd0adbdc1 Author: Brian Behlendorf Date: Wed Jul 11 15:49:10 2018 -0700 Fix zpl_mount() deadlock == Regression Potential == This just changes the locking in the mount path of ZFS and will only affect ZFS mount/unmounts. The regression potential is small as this touches a very small code path that has been exhaustively exercises this code under multiple thread/CPU contention and shown not to break. -- ZFS bug report: https://github.com/zfsonlinux/zfs/issues/7691 "I am using LXD containers that are configured to use a ZFS storage backend. I create many containers using a benchmark tool, which probably stresses the use of ZFS. In two out of four attempts, I got [ 725.970508] INFO: task lxd:4455 blocked for more than 120 seconds. [ 725.976730] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 725.983551] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 725.991624] INFO: task txg_sync:4202 blocked for more than 120 seconds. [ 725.998264] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.005071] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.013313] INFO: task lxd:99919 blocked for more than 120 seconds. [ 726.019609] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.026418] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.034560] INFO: task zfs:100513 blocked for more than 120 seconds. [ 726.040936] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.047746] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 726.055791] INFO: task zfs:100584 blocked for more than 120 seconds. [ 726.062170] Tainted: P O 4.15.0-20-generic #21-Ubuntu [ 726.068979] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Describe how to reproduce the problem Start an Ubuntu 18.04 LTS server. Install LXD if not already installed. sudo apt update sudo apt install lxd lxd-client lxd-tools zfsutils-linux Configure LXD with sudo lxd init. When prompted for the storage backend, select ZFS and specify an empty disk. $ sudo lxd init Would you like to use LXD clustering? (yes/no) [default=no]: Do you want to configure a new storage pool? (yes/no) [default=yes]: Name of the new storage pool [default=default]: Name of the storage backend to use (dir, zfs) [default=zfs]: Create a new ZFS pool? (yes/no) [default=yes]: Would you like to use an existing block device? (yes/no) [default=no]: yes Path to the existing block device: /dev/sdb Would you like to connect to a MAAS server? (yes/no) [default=no]: Would you like to create a new local network bridge? (yes/no) [default=yes]: no Would you like to configure LXD to use an existing bridge or host interface? (yes/no) [default=no]: no Would you like LXD to be available over the network? (yes/no) [default=no]: Would you like stale cached images to be updated automatically? (yes/no) [default=yes] Would you like a YAML "lxd init" preseed to be printed? (yes/no) [default=no]: Now run the following to launch 48 containers in batches of 12. lxd-benchmark launch
[Kernel-packages] [Bug 1781601] Re: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn)
I tried the following command: ubuntu@myserver:~$ lxd-benchmark launch --count 900 --parallel 24 ubuntu:18.04 Test environment: Server backend: lxd Server version: 3.0.2 Kernel: Linux Kernel architecture: x86_64 Kernel version: 4.15.0-36-generic Storage backend: zfs Storage version: 0.7.5-1ubuntu16.3 Container backend: lxc Container version: 3.0.2 Test variables: Container count: 900 Container mode: unprivileged Startup mode: normal startup Image: ubuntu:18.04 Batches: 37 Batch size: 24 Remainder: 12 [Oct 3 21:46:55.617] Found image in local store: c395a7105278712478ec1dbfaab1865593fc11292f99afe01d5b94f1c34a9a3a [Oct 3 21:46:55.617] Batch processing start [Oct 3 21:47:09.310] Processed 24 containers in 13.693s (1.753/s) [Oct 3 21:47:26.739] Processed 48 containers in 31.122s (1.542/s) [Oct 3 21:48:06.052] Processed 96 containers in 70.435s (1.363/s) [Oct 3 21:49:27.340] Processed 192 containers in 151.723s (1.265/s) ^C I interrupted the benchmark because it got stuck. Note: 1. I am running Ubuntu 18.04. 2. With the updated kernel 4.15.0-36. I did not try the proposed kernel. 3. With LXD 3.0.2 (from bionic/proposed) -- 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/1781601 Title: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn) Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Bug description: I have been stress-testing LXD and managed to cause the following kernel hung: [10271.564074] INFO: task systemd:1 blocked for more than 120 seconds. [10271.570397] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.577212] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.585071] systemd D0 1 0 0x [10271.585073] Call Trace: [10271.585080] __schedule+0x297/0x8b0 [10271.585086] schedule+0x2c/0x80 [10271.585090] schedule_preempt_disabled+0xe/0x10 [10271.585095] __mutex_lock.isra.2+0x18c/0x4d0 [10271.585100] __mutex_lock_slowpath+0x13/0x20 [10271.585101] ? __mutex_lock_slowpath+0x13/0x20 [10271.585102] mutex_lock+0x2f/0x40 [10271.585106] proc_cgroup_show+0x4c/0x2a0 [10271.585108] proc_single_show+0x56/0x80 [10271.585111] seq_read+0xe5/0x430 [10271.585114] __vfs_read+0x1b/0x40 [10271.585115] vfs_read+0x8e/0x130 [10271.585117] SyS_read+0x55/0xc0 [10271.585120] do_syscall_64+0x73/0x130 [10271.585121] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.585123] RIP: 0033:0x7fd47634d0b4 [10271.585124] RSP: 002b:7ffe9a186700 EFLAGS: 0246 ORIG_RAX: [10271.585125] RAX: ffda RBX: 0021 RCX: 7fd47634d0b4 [10271.585126] RDX: 0400 RSI: 55f70a08c0c0 RDI: 0021 [10271.585127] RBP: 55f70a08c0c0 R08: R09: [10271.585128] R10: R11: 0246 R12: 0400 [10271.585129] R13: 7fd4766252a0 R14: 55f70a0298e0 R15: 07ff [10271.585221] INFO: task lxcfs:84510 blocked for more than 120 seconds. [10271.591687] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.598531] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.606401] lxcfs D0 84510 1 0x [10271.606407] Call Trace: [10271.606416] __schedule+0x297/0x8b0 [10271.606418] schedule+0x2c/0x80 [10271.606420] schedule_preempt_disabled+0xe/0x10 [10271.606421] __mutex_lock.isra.2+0x18c/0x4d0 [10271.606423] __mutex_lock_slowpath+0x13/0x20 [10271.606424] ? __mutex_lock_slowpath+0x13/0x20 [10271.606425] mutex_lock+0x2f/0x40 [10271.606427] proc_cgroup_show+0x4c/0x2a0 [10271.606429] proc_single_show+0x56/0x80 [10271.606432] seq_read+0xe5/0x430 [10271.606434] __vfs_read+0x1b/0x40 [10271.606436] vfs_read+0x8e/0x130 [10271.606437] SyS_read+0x55/0xc0 [10271.606440] do_syscall_64+0x73/0x130 [10271.606441] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.606443] RIP: 0033:0x7f1a50e700b4 [10271.606443] RSP: 002b:7f1a2b7fd870 EFLAGS: 0246 ORIG_RAX: [10271.606445] RAX: ffda RBX: 0013 RCX: 7f1a50e700b4 [10271.606446] RDX: 0400 RSI: 7f1a04000f90 RDI: 0013 [10271.606446] RBP: 7f1a04000f90 R08: 0001 R09: [10271.606447] R10: R11: 0246 R12: 0400 [10271.606448] R13: 7f1a511482a0 R14: R15: 7f1a38003a40 [10271.606450] INFO: task lxcfs:84676 blocked for more than 120 seconds. [10271.612911] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.619722] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this messa
[Kernel-packages] [Bug 1781601] Re: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn)
I got the same bug again. Here are the kernel messages: [ 1450.993972] INFO: task systemd:1 blocked for more than 120 seconds. [ 1451.000279] Tainted: P O 4.15.0-36-generic #39-Ubuntu [ 1451.007094] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1451.014957] systemd D0 1 0 0x [ 1451.014960] Call Trace: [ 1451.014969] __schedule+0x291/0x8a0 [ 1451.014971] schedule+0x2c/0x80 [ 1451.014973] schedule_preempt_disabled+0xe/0x10 [ 1451.014974] __mutex_lock.isra.2+0x18c/0x4d0 [ 1451.014976] __mutex_lock_slowpath+0x13/0x20 [ 1451.014978] ? __mutex_lock_slowpath+0x13/0x20 [ 1451.014979] mutex_lock+0x2f/0x40 [ 1451.014982] proc_cgroup_show+0x4c/0x2a0 [ 1451.014985] proc_single_show+0x56/0x80 [ 1451.014988] seq_read+0xe5/0x430 [ 1451.014990] __vfs_read+0x1b/0x40 [ 1451.014991] vfs_read+0x8e/0x130 [ 1451.014992] SyS_read+0x55/0xc0 [ 1451.014995] do_syscall_64+0x73/0x130 [ 1451.014997] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1451.014999] RIP: 0033:0x7fc9a5300081 [ 1451.015000] RSP: 002b:7ffcdf16ab48 EFLAGS: 0246 ORIG_RAX: [ 1451.015002] RAX: ffda RBX: 55c5a2612290 RCX: 7fc9a5300081 [ 1451.015003] RDX: 0400 RSI: 55c5a269b4d0 RDI: 0026 [ 1451.015004] RBP: 0d68 R08: 0001 R09: [ 1451.015004] R10: R11: 0246 R12: 7fc9a55d7760 [ 1451.015005] R13: 7fc9a55d82a0 R14: 55c5a2612290 R15: 07ff [ 1451.015077] INFO: task systemd-journal:811 blocked for more than 120 seconds. [ 1451.022239] Tainted: P O 4.15.0-36-generic #39-Ubuntu [ 1451.029073] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1451.036938] systemd-journal D0 811 1 0x0120 [ 1451.036942] Call Trace: [ 1451.036950] __schedule+0x291/0x8a0 [ 1451.036954] ? ___slab_alloc+0x20a/0x4b0 [ 1451.036956] schedule+0x2c/0x80 [ 1451.036957] schedule_preempt_disabled+0xe/0x10 [ 1451.036958] __mutex_lock.isra.2+0x18c/0x4d0 [ 1451.036960] __mutex_lock_slowpath+0x13/0x20 [ 1451.036962] ? __mutex_lock_slowpath+0x13/0x20 [ 1451.036963] mutex_lock+0x2f/0x40 [ 1451.036966] proc_cgroup_show+0x4c/0x2a0 [ 1451.036969] proc_single_show+0x56/0x80 [ 1451.036972] seq_read+0xe5/0x430 [ 1451.036975] __vfs_read+0x1b/0x40 [ 1451.036978] vfs_read+0x8e/0x130 [ 1451.036981] SyS_read+0x55/0xc0 [ 1451.036985] do_syscall_64+0x73/0x130 [ 1451.036988] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1451.036991] RIP: 0033:0x7f331df97081 [ 1451.036993] RSP: 002b:7ffd719a04c8 EFLAGS: 0246 ORIG_RAX: [ 1451.036997] RAX: ffda RBX: 56046305a6c0 RCX: 7f331df97081 [ 1451.037000] RDX: 0400 RSI: 560463012a10 RDI: 001f [ 1451.037001] RBP: 0d68 R08: 0001 R09: [ 1451.037003] R10: R11: 0246 R12: 7f331e26e760 [ 1451.037005] R13: 7f331e26f2a0 R14: 56046305a6c0 R15: 07ff [ 1451.037029] INFO: task lxcfs:39982 blocked for more than 120 seconds. [ 1451.043498] Tainted: P O 4.15.0-36-generic #39-Ubuntu [ 1451.050308] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1451.058165] lxcfs D0 39982 1 0x [ 1451.058167] Call Trace: [ 1451.058172] __schedule+0x291/0x8a0 [ 1451.058174] schedule+0x2c/0x80 [ 1451.058175] schedule_preempt_disabled+0xe/0x10 [ 1451.058176] __mutex_lock.isra.2+0x18c/0x4d0 [ 1451.058178] __mutex_lock_slowpath+0x13/0x20 [ 1451.058179] ? __mutex_lock_slowpath+0x13/0x20 [ 1451.058180] mutex_lock+0x2f/0x40 [ 1451.058182] proc_cgroup_show+0x4c/0x2a0 [ 1451.058184] proc_single_show+0x56/0x80 [ 1451.058185] seq_read+0xe5/0x430 [ 1451.058187] __vfs_read+0x1b/0x40 [ 1451.058188] vfs_read+0x8e/0x130 [ 1451.058189] SyS_read+0x55/0xc0 [ 1451.058191] do_syscall_64+0x73/0x130 [ 1451.058192] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 1451.058194] RIP: 0033:0x7fe0461c70b4 [ 1451.058194] RSP: 002b:7fe036ffc870 EFLAGS: 0246 ORIG_RAX: [ 1451.058196] RAX: ffda RBX: 001a RCX: 7fe0461c70b4 [ 1451.058196] RDX: 0400 RSI: 7fdfb00231e0 RDI: 001a [ 1451.058197] RBP: 7fdfb00231e0 R08: 0001 R09: [ 1451.058198] R10: R11: 0246 R12: 0400 [ 1451.058198] R13: 7fe04649f2a0 R14: R15: [ 1451.058200] INFO: task lxcfs:118730 blocked for more than 120 seconds. [ 1451.064746] Tainted: P O 4.15.0-36-generic #39-Ubuntu [ 1451.071559] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1451.079411] lxcfs D0 118730 1 0x [ 1451.079415] Call Trace: [ 1451.079418] __schedule+0x291/0x8a0 [ 1451.079421] ? ___slab_a
[Kernel-packages] [Bug 1781601] Re: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn)
The system is largely unresponsive. I got this though: ubuntu@myserver:~$ free totalusedfree shared buff/cache available Mem: 6568594848896836 803588 4691721598552415572340 Swap: 1996796 51712 1945084 ubuntu@myserver:~$ It appears that the memory has been exhausted. Do kernel errors from resource exhaustion count as bugs? I am changing from CONFIRMED to NEW. ** Changed in: linux (Ubuntu) Status: Confirmed => New ** Changed in: linux (Ubuntu Bionic) Status: Confirmed => New -- 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/1781601 Title: Stress-testing LXD causes kernel hung in cgroups (cgroup_destroy css_killed_work_fn) Status in linux package in Ubuntu: New Status in linux source package in Bionic: New Bug description: I have been stress-testing LXD and managed to cause the following kernel hung: [10271.564074] INFO: task systemd:1 blocked for more than 120 seconds. [10271.570397] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.577212] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.585071] systemd D0 1 0 0x [10271.585073] Call Trace: [10271.585080] __schedule+0x297/0x8b0 [10271.585086] schedule+0x2c/0x80 [10271.585090] schedule_preempt_disabled+0xe/0x10 [10271.585095] __mutex_lock.isra.2+0x18c/0x4d0 [10271.585100] __mutex_lock_slowpath+0x13/0x20 [10271.585101] ? __mutex_lock_slowpath+0x13/0x20 [10271.585102] mutex_lock+0x2f/0x40 [10271.585106] proc_cgroup_show+0x4c/0x2a0 [10271.585108] proc_single_show+0x56/0x80 [10271.585111] seq_read+0xe5/0x430 [10271.585114] __vfs_read+0x1b/0x40 [10271.585115] vfs_read+0x8e/0x130 [10271.585117] SyS_read+0x55/0xc0 [10271.585120] do_syscall_64+0x73/0x130 [10271.585121] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.585123] RIP: 0033:0x7fd47634d0b4 [10271.585124] RSP: 002b:7ffe9a186700 EFLAGS: 0246 ORIG_RAX: [10271.585125] RAX: ffda RBX: 0021 RCX: 7fd47634d0b4 [10271.585126] RDX: 0400 RSI: 55f70a08c0c0 RDI: 0021 [10271.585127] RBP: 55f70a08c0c0 R08: R09: [10271.585128] R10: R11: 0246 R12: 0400 [10271.585129] R13: 7fd4766252a0 R14: 55f70a0298e0 R15: 07ff [10271.585221] INFO: task lxcfs:84510 blocked for more than 120 seconds. [10271.591687] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.598531] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.606401] lxcfs D0 84510 1 0x [10271.606407] Call Trace: [10271.606416] __schedule+0x297/0x8b0 [10271.606418] schedule+0x2c/0x80 [10271.606420] schedule_preempt_disabled+0xe/0x10 [10271.606421] __mutex_lock.isra.2+0x18c/0x4d0 [10271.606423] __mutex_lock_slowpath+0x13/0x20 [10271.606424] ? __mutex_lock_slowpath+0x13/0x20 [10271.606425] mutex_lock+0x2f/0x40 [10271.606427] proc_cgroup_show+0x4c/0x2a0 [10271.606429] proc_single_show+0x56/0x80 [10271.606432] seq_read+0xe5/0x430 [10271.606434] __vfs_read+0x1b/0x40 [10271.606436] vfs_read+0x8e/0x130 [10271.606437] SyS_read+0x55/0xc0 [10271.606440] do_syscall_64+0x73/0x130 [10271.606441] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [10271.606443] RIP: 0033:0x7f1a50e700b4 [10271.606443] RSP: 002b:7f1a2b7fd870 EFLAGS: 0246 ORIG_RAX: [10271.606445] RAX: ffda RBX: 0013 RCX: 7f1a50e700b4 [10271.606446] RDX: 0400 RSI: 7f1a04000f90 RDI: 0013 [10271.606446] RBP: 7f1a04000f90 R08: 0001 R09: [10271.606447] R10: R11: 0246 R12: 0400 [10271.606448] R13: 7f1a511482a0 R14: R15: 7f1a38003a40 [10271.606450] INFO: task lxcfs:84676 blocked for more than 120 seconds. [10271.612911] Tainted: P OE4.15.0-20-generic #21-Ubuntu [10271.619722] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [10271.627577] lxcfs D0 84676 1 0x [10271.627579] Call Trace: [10271.627583] __schedule+0x297/0x8b0 [10271.627589] schedule+0x2c/0x80 [10271.627594] schedule_preempt_disabled+0xe/0x10 [10271.627598] __mutex_lock.isra.2+0x18c/0x4d0 [10271.627600] __mutex_lock_slowpath+0x13/0x20 [10271.627601] ? __mutex_lock_slowpath+0x13/0x20 [10271.627602] mutex_lock+0x2f/0x40 [10271.627604] proc_cgroup_show+0x4c/0x2a0 [10271.627606] proc_single_show+0x56/0x80 [10271.627608] seq_read+0xe5/0x430 [10271.627610] __vfs_read+0x1b/0x40 [10271.627611] vfs_re
[Kernel-packages] [Bug 1611124] Re: W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for module i915
I get this message and I do not even run a Kabylake system ("kbl").
According to https://01.org/linuxgraphics/downloads/firmware
"2. Q: I am seeing the following error message, what do they mean and what
should I do in response?
W:Possible missing firmware /lib/firmware/i915/kbl_dmc_ver1.bin for module
i915
A: This warning can be safely ignored."
Therefore, this message can be safely ignored.
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Packages, which is subscribed to linux-firmware in Ubuntu.
https://bugs.launchpad.net/bugs/1611124
Title:
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin
for module i915
Status in xen:
Unknown
Status in linux-firmware package in Ubuntu:
Invalid
Bug description:
$sudo dpkg -i linux-image-4.8.0-040800rc1-lowlatency
[...]
update-initramfs: Generating /boot/initrd.img-4.8.0-040800rc1-lowlatency
W: Possible missing firmware /lib/firmware/i915/kbl_guc_ver9_14.bin for
module i915
W: Possible missing firmware /lib/firmware/i915/bxt_guc_ver8_7.bin for module
i915
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: linux-firmware 1.159
Uname: Linux 4.8.0-040800rc1-lowlatency x86_64
ApportVersion: 2.20.3-0ubuntu5
Architecture: amd64
Date: Mon Aug 8 17:50:38 2016
Dependencies:
InstallationDate: Installed on 2015-07-26 (379 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150723)
PackageArchitecture: all
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
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[Kernel-packages] [Bug 1271268] Re: 174c:5106 1 TB External USB 3.0 Drive Fails to Automount through USB 3.0 dock with XHCI Enabled
Apparently this is a regression in the xhci code (USB3). If you connect the device to a USB2 port (if you have one) or disable xHCI in the BIOS, the problem is gone. Of course you get USB2 speeds as well. Relevant bug reports: "Bug#741989: linux: 3.13.5: known regression: "xHCI xhci_drop_endpoint called with disabled ep"" https://lists.debian.org/debian-kernel/2014/03/msg00153.html "Bug 864866 - USB3 device randomly disconnecting while in use or not" https://bugzilla.novell.com/show_bug.cgi?id=864866 "USB 3.0 corrupts NTFS disks" https://forums.gentoo.org/viewtopic-t-963046-start-0.html In a nutshell, 1. when something goes bad, the first dmesg messages say [ 3888.906845] usb 4-4: reset SuperSpeed USB device number 3 using xhci_hcd [ 3888.923000] xhci_hcd :00:14.0: xHCI xhci_drop_endpoint called with disabled ep 8801de04f680 [ 3888.923002] xhci_hcd :00:14.0: xHCI xhci_drop_endpoint called with disabled ep 8801de04f6c0 (probably multiple times if keep using the drive) 2. Then, the drive is disconnected and reconnected again. If you have the default setting to automount, you get many Nautilus windows opening up. [ 4676.122427] usb 4-4: USB disconnect, device number 3 [ 4676.490858] sd 6:0:0:0: [sdb] Synchronizing SCSI cache [ 4676.490878] sd 6:0:0:0: [sdb] [ 4676.490879] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 4676.490934] usb 4-4: Set SEL for device-initiated U1 failed. [ 4676.490935] usb 4-4: Set SEL for device-initiated U2 failed. See http://blogs.msdn.com/b/usbcoreblog/archive/2012/07/13/common- issues-in-usb-3-0-devices.aspx for more about "Set SEL". 3. After some more use, the device gives buffer I/O errors, [ 5398.216920] Buffer I/O error on device sdb1, logical block 91570828 [ 5398.216933] Buffer I/O error on device sdb1, logical block 91570828 [ 5398.20] Buffer I/O error on device sdb1, logical block 91570828 ** Bug watch added: Novell/SUSE Bugzilla #864866 https://bugzilla.novell.com/show_bug.cgi?id=864866 ** Also affects: linux (Suse) via https://bugzilla.novell.com/show_bug.cgi?id=864866 Importance: Unknown Status: Unknown ** Bug watch added: Debian Bug tracker #741989 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741989 ** Also affects: linux (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=741989 Importance: Unknown Status: Unknown -- 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/1271268 Title: 174c:5106 1 TB External USB 3.0 Drive Fails to Automount through USB 3.0 dock with XHCI Enabled Status in “linux” package in Ubuntu: Triaged Status in “linux” package in Debian: Unknown Status in “linux” package in Suse: Unknown Bug description: I have a 1 TB Western Digital drive in a USB 3.0 HDD dock that will not automount with Ubuntu 13.10 while XHCI is enabled in the BIOS. If I disable XHCI in the BIOS, it automounts normally. I've tried an external USB 3.0 enclosure and two different brands of USB 3.0 HDD docks (that use different chipsets) with the 1 TB drive and it still will not automount. Dmesg shows the following when the drive is turned on: [10813.786820] usb 4-5.3: new SuperSpeed USB device number 4 using xhci_hcd [10823.816236] usb 4-5.3: New USB device found, idVendor=174c, idProduct=5106 [10823.816245] usb 4-5.3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [10823.816250] usb 4-5.3: Product: AS2105 [10823.816255] usb 4-5.3: Manufacturer: ASMedia [10828.823853] usb 4-5.3: can't set config #1, error -110 WORKAROUND: Disable XHCI in the BIOS, but this runs at USB 2.0 speeds using EHCI. I actually thought the 1 TB drive was bad, and I RMA'd it to Western Digital, but the replacement drive fails with the same error message. I have a couple of Western Digital 500 GB drives that work just fine in the same HDD dock with XHCI enabled. All the drives were formatted in Ubuntu 13.10 using LUKS via the Disks Utility. I have tried various settings in the BIOS (XHCI set at Smart Auto, Auto, and Manual) but they make no difference. I found an old bug report with the same "can't set config #1, error -110" error message that recommended adding "pci=nomsi" to Grub, but that did not work either. Upstream URL: permalink.gmane.org/gmane.linux.usb.general/101979 ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: jsherman 2017 F pulseaudio /dev/snd/controlC0: jsherman 2017 F pulseaudio /dev/snd/pcmC0D1p: jsherman 2017 F...m pulseaudio CurrentDmesg: [ 81.782320] e1000e :00:19.0: irq 44 for MSI/MSI-X [ 81.782396
[Kernel-packages] [Bug 967399] Re: [11.10] Elantech trackpoint does not work Lenovo
It's great that it has been fixed upstream. To backport to 14.04, see instructions at https://help.ubuntu.com/community/UbuntuBackports -- 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/967399 Title: [11.10] Elantech trackpoint does not work Lenovo Status in linux package in Ubuntu: In Progress Status in linux source package in Precise: Fix Released Bug description: Title: trackpoint does not function Summary: trackpoint does not function Steps: 1. log into desktop 2. use trackpoint and trackpoint buttons Expected results: laptop responds to trackpoint and trackpoint buttons being pressed Actual results: nothing happens Manufacturer: LENOVO WORKAROUND: sudo modprobe proto=exps enables the trackpoint and touchpad, but user will lose multi-touch functionality. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/967399/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1364546] Re: [ASRock Z77 Extreme4] suspend/resume failure [non-free: nvidia]
Also occurred on an ASRock Z87 Pro4, after several suspend/resume cycles. It might be a race condition. Linux desktop 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- 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/1364546 Title: [ASRock Z77 Extreme4] suspend/resume failure [non-free: nvidia] Status in “linux” package in Ubuntu: Incomplete Bug description: Turned off when it should have resumed (keyboard pressed). ProblemType: KernelOops DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-12-generic 3.16.0-12.17 ProcVersionSignature: Ubuntu 3.16.0-12.17-generic 3.16.1 Uname: Linux 3.16.0-12-generic x86_64 NonfreeKernelModules: nvidia Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.14.7-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC3: peter 2842 F pulseaudio /dev/snd/controlC2: peter 2842 F pulseaudio /dev/snd/controlC0: peter 2842 F pulseaudio /dev/snd/controlC1: peter 2842 F pulseaudio Date: Tue Sep 2 19:55:07 2014 DuplicateSignature: suspend/resume:To Be Filled By O.E.M. To Be Filled By O.E.M.:P2.90 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume InstallationDate: Installed on 2014-08-16 (16 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140816) InterpreterPath: /usr/bin/python3.4 IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-12-generic root=UUID=a01a8a8f-61c7-4592-a658-643a4dcf297d ro quiet splash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.16.0-12-generic N/A linux-backports-modules-3.16.0-12-generic N/A linux-firmware 1.133 RfKill: SourcePackage: linux Title: [To Be Filled By O.E.M. To Be Filled By O.E.M.] suspend/resume failure [non-free: nvidia] UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: dmi.bios.date: 07/11/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.90 dmi.board.name: Z77 Extreme4 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.90:bd07/11/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1364546/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1364546] Re: [ASRock Z77 Extreme4] suspend/resume failure [non-free: nvidia]
Christopher, the motherboard is from a LoCo member and I do not have access to it at the moment. What is common between the two cases, is the motherboard being ASRock. -- 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/1364546 Title: [ASRock Z77 Extreme4] suspend/resume failure [non-free: nvidia] Status in “linux” package in Ubuntu: Incomplete Bug description: Turned off when it should have resumed (keyboard pressed). ProblemType: KernelOops DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-12-generic 3.16.0-12.17 ProcVersionSignature: Ubuntu 3.16.0-12.17-generic 3.16.1 Uname: Linux 3.16.0-12-generic x86_64 NonfreeKernelModules: nvidia Annotation: This occured during a previous suspend and prevented it from resuming properly. ApportVersion: 2.14.7-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC3: peter 2842 F pulseaudio /dev/snd/controlC2: peter 2842 F pulseaudio /dev/snd/controlC0: peter 2842 F pulseaudio /dev/snd/controlC1: peter 2842 F pulseaudio Date: Tue Sep 2 19:55:07 2014 DuplicateSignature: suspend/resume:To Be Filled By O.E.M. To Be Filled By O.E.M.:P2.90 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume InstallationDate: Installed on 2014-08-16 (16 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140816) InterpreterPath: /usr/bin/python3.4 IwConfig: eth0 no wireless extensions. lono wireless extensions. MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. ProcCmdline: /usr/bin/python3 /usr/share/apport/apportcheckresume ProcEnviron: TERM=linux PATH=(custom, no user) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-12-generic root=UUID=a01a8a8f-61c7-4592-a658-643a4dcf297d ro quiet splash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.16.0-12-generic N/A linux-backports-modules-3.16.0-12-generic N/A linux-firmware 1.133 RfKill: SourcePackage: linux Title: [To Be Filled By O.E.M. To Be Filled By O.E.M.] suspend/resume failure [non-free: nvidia] UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: dmi.bios.date: 07/11/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P2.90 dmi.board.name: Z77 Extreme4 dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP2.90:bd07/11/2013:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnZ77Extreme4:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1364546/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
