[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
SRU Justification BugLink: https://bugs.launchpad.net/bugs/2061091 [Impact] User reports that laptop gets stuck on the console screen when trying to shut down or suspend laptop. [Fix] Focal: backport form bb9b0e46b84 due to different context. Jammy and Mantic: cherry-pick from bb9b0e46b84. Noble: stable v6.8.12 includes the fix by 88ce3fe255d5. [Test case] No specific test case from our side since this bug was reported by customer. [Regression Potential] It could affect PM relevant actions. Takashi Iwai (1): ALSA: Fix deadlocks with kctl removals at disconnection sound/core/init.c | 9 - 1 file changed, 8 insertions(+), 1 deletion(-) ** Changed in: linux-signed-hwe-6.5 (Ubuntu) Milestone: None => jammy-updates ** Also affects: linux-signed-hwe-6.5 (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-signed-hwe-6.5 (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-signed-hwe-6.5 (Ubuntu Mantic) Importance: Undecided Status: New ** Changed in: linux-signed-hwe-6.5 (Ubuntu Focal) Assignee: (unassigned) => GuoqingJiang (guoqingjiang) ** Changed in: linux-signed-hwe-6.5 (Ubuntu Jammy) Assignee: (unassigned) => GuoqingJiang (guoqingjiang) ** Changed in: linux-signed-hwe-6.5 (Ubuntu Mantic) Assignee: (unassigned) => GuoqingJiang (guoqingjiang) ** Changed in: linux-signed-hwe-6.5 (Ubuntu Focal) Milestone: None => focal-updates ** Changed in: linux-signed-hwe-6.5 (Ubuntu Jammy) Milestone: None => jammy-updates ** Changed in: linux-signed-hwe-6.5 (Ubuntu Mantic) Milestone: None => mantic-updates -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Thanks for the update, commit 87988a534d8e ("ALSA: Fix deadlocks with
kctl removals at disconnection") has been merged into upstream, and it
will be included by stable update
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Title:
Freezing user space processes failed after 20.008 seconds (1 tasks
refusing to freeze, wq_busy=0)
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[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
I reported this upstream at https://bugzilla.kernel.org/show_bug.cgi?id=218816. Perhaps someone there can help. ** Bug watch added: Linux Kernel Bug Tracker #218816 https://bugzilla.kernel.org/show_bug.cgi?id=218816 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Seems I was mistaken. This happens on 6.8 as well. ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+attachment/5773507/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Thanks for the update, could you bisect which commit fixes the issue since upstream 6.8 works? https://git-scm.com/docs/git-bisect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Ok, I reproduced this on a rebuild of 6.5.0-34 with CONFIG_PROVE_LOCKING. Here are some relevant-looking bits of the logs. It looks like the wireplumber process and the usb_disconnect process have deadlocked? [Thinking about this further, possibly the action that triggers it is to disconnect the dock while the system is suspended, then resume the system.] Apr 29 21:24:36 xps9320 kernel: [280990.641315] INFO: task wireplumber:3263 blocked for more than 241 seconds. Apr 29 21:24:36 xps9320 kernel: [280990.641334] Tainted: G OE 6.5.13+ #18 Apr 29 21:24:36 xps9320 kernel: [280990.641341] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 29 21:24:36 xps9320 kernel: [280990.641346] task:wireplumber state:D stack:0 pid:3263 ppid:3253 flags:0x0002 Apr 29 21:24:36 xps9320 kernel: [280990.641360] Call Trace: Apr 29 21:24:36 xps9320 kernel: [280990.641367] Apr 29 21:24:36 xps9320 kernel: [280990.641382] __schedule+0x4cc/0x1ad0 Apr 29 21:24:36 xps9320 kernel: [280990.641401] ? trace_hardirqs_on+0x65/0xc0 Apr 29 21:24:36 xps9320 kernel: [280990.641414] ? _raw_spin_unlock_irqrestore+0x31/0x70 Apr 29 21:24:36 xps9320 kernel: [280990.641424] ? __wake_up_common_lock+0x8d/0xd0 Apr 29 21:24:36 xps9320 kernel: [280990.641442] schedule+0x68/0x110 Apr 29 21:24:36 xps9320 kernel: [280990.641456] snd_power_ref_and_wait+0xbd/0x120 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.641486] ? __pfx_autoremove_wake_function+0x10/0x10 Apr 29 21:24:36 xps9320 kernel: [280990.641501] snd_ctl_elem_info+0x4f/0x1b0 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.641532] snd_ctl_elem_info_user+0x4e/0xb0 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.641581] snd_ctl_ioctl+0x1ec/0x850 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.641608] ? __fget_files+0xde/0x1d0 Apr 29 21:24:36 xps9320 kernel: [280990.641625] __x64_sys_ioctl+0x9d/0xe0 Apr 29 21:24:36 xps9320 kernel: [280990.641637] x64_sys_call+0x1fe9/0x2570 Apr 29 21:24:36 xps9320 kernel: [280990.641646] do_syscall_64+0x56/0x90 Apr 29 21:24:36 xps9320 kernel: [280990.641657] ? do_syscall_64+0x63/0x90 Apr 29 21:24:36 xps9320 kernel: [280990.641665] ? do_syscall_64+0x63/0x90 Apr 29 21:24:36 xps9320 kernel: [280990.641675] entry_SYSCALL_64_after_hwframe+0x73/0xdd Apr 29 21:24:36 xps9320 kernel: [280990.641683] RIP: 0033:0x70991f71a94f Apr 29 21:24:36 xps9320 kernel: [280990.641692] RSP: 002b:7ffc84003090 EFLAGS: 0246 ORIG_RAX: 0010 Apr 29 21:24:36 xps9320 kernel: [280990.641701] RAX: ffda RBX: 7ffc84003100 RCX: 70991f71a94f Apr 29 21:24:36 xps9320 kernel: [280990.641707] RDX: 7ffc84003100 RSI: c1105511 RDI: 0022 Apr 29 21:24:36 xps9320 kernel: [280990.641713] RBP: 7ffc840032e0 R08: 6231bc666330 R09: 0004 Apr 29 21:24:36 xps9320 kernel: [280990.641718] R10: f314 R11: 0246 R12: 6231bc90dc50 Apr 29 21:24:36 xps9320 kernel: [280990.641723] R13: 6231bc7c9140 R14: 7ffc84003280 R15: 7ffc84003220 Apr 29 21:24:36 xps9320 kernel: [280990.641745] Apr 29 21:24:36 xps9320 kernel: [280990.64] INFO: task kworker/2:3:67822 blocked for more than 241 seconds. Apr 29 21:24:36 xps9320 kernel: [280990.642229] Tainted: G OE 6.5.13+ #18 Apr 29 21:24:36 xps9320 kernel: [280990.642234] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 29 21:24:36 xps9320 kernel: [280990.642239] task:kworker/2:3 state:D stack:0 pid:67822 ppid:2 flags:0x4000 Apr 29 21:24:36 xps9320 kernel: [280990.642250] Workqueue: usb_hub_wq hub_event Apr 29 21:24:36 xps9320 kernel: [280990.642262] Call Trace: Apr 29 21:24:36 xps9320 kernel: [280990.642266] Apr 29 21:24:36 xps9320 kernel: [280990.642274] __schedule+0x4cc/0x1ad0 Apr 29 21:24:36 xps9320 kernel: [280990.642285] ? mark_held_locks+0x4d/0x90 Apr 29 21:24:36 xps9320 kernel: [280990.642303] schedule+0x68/0x110 Apr 29 21:24:36 xps9320 kernel: [280990.642312] schedule_preempt_disabled+0x15/0x30 Apr 29 21:24:36 xps9320 kernel: [280990.642321] rwsem_down_write_slowpath+0x2bc/0x820 Apr 29 21:24:36 xps9320 kernel: [280990.642342] down_write+0xde/0xe0 Apr 29 21:24:36 xps9320 kernel: [280990.642353] snd_pcm_dev_disconnect+0x1cb/0x280 [snd_pcm] Apr 29 21:24:36 xps9320 kernel: [280990.642386] snd_device_disconnect_all+0x47/0xa0 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.642411] snd_card_disconnect.part.0+0x10d/0x270 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.642439] snd_card_disconnect+0x13/0x30 [snd] Apr 29 21:24:36 xps9320 kernel: [280990.642462] usb_audio_disconnect+0x116/0x290 [snd_usb_audio] Apr 29 21:24:36 xps9320 kernel: [280990.642504] usb_unbind_interface+0x90/0x280 Apr 29 21:24:36 xps9320 kernel: [280990.642518] device_remove+0x69/0x80 Apr 29 21:24:36 xps9320 kernel: [280990.642528] device_release_driver_internal+0x20d/0x280 Apr 29 21:24:36 xps9320 kernel: [280990.642539]
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Oddly, I don't seem to be able to reproduce this problem on an upstream 6.8 kernel. I'll try with a rebuild of 6.5.0-27-generic instead. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
> And this call trace looks is related to current issue, I guess snd_power_ref_and_wait was waiting for snd_card_disconnect which wakes up power_sleep at the end of the code, but snd_card_disconnect -> snd_device_disconnect_all -> snd_pcm_dev_disconnect was blocked for some reason. Yes, interesting. Good spot. > Looks suspend/resume can be completed sometimes. Yes. I think what causes the problem is when I disconnect from my USB dock. After that, I can't suspend until I reboot. Once I reboot, it can suspend again until I once more disconnect the dock. > Could you rebuild kernel with CONFIG_PROVE_LOCKING option to discover locking > related deadlocks? Then upload the log after reproduce the issue by shut down > laptop with the new kernel. Also please attach the output of lsusb given it > could be usb relevant. > > And it also would be helpful to try with latest noble kernel or recent > upstream kernel, thanks. Sure. I'll try an upstream kernel with CONFIG_PROVE_LOCKING. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Looks suspend/resume can be completed sometimes. Apr 15 12:49:26 xps9320 kernel: [10214.971688] Freezing user space processes completed (elapsed 0.002 seconds) Apr 15 21:45:23 xps9320 kernel: [30355.137512] Freezing user space processes completed (elapsed 0.015 seconds) Apr 15 23:02:59 xps9320 kernel: [47737.172847] Freezing user space processes failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:03:19 xps9320 kernel: [47757.538206] Freezing user space processes failed after 20.001 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:03:49 xps9320 kernel: [47787.948230] Freezing user space processes failed after 20.010 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:04:10 xps9320 kernel: [47808.293913] Freezing user space processes failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:04:40 xps9320 kernel: [47838.963650] Freezing user space processes failed after 20.011 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:05:01 xps9320 kernel: [47859.321047] Freezing user space processes failed after 20.007 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:05:31 xps9320 kernel: [47889.930764] Freezing user space processes failed after 20.007 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:05:52 xps9320 kernel: [47910.270362] Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:06:22 xps9320 kernel: [47940.942995] Freezing user space processes failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:06:43 xps9320 kernel: [47961.284299] Freezing user space processes failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:07:13 xps9320 kernel: [47991.938673] Freezing user space processes failed after 20.003 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:07:34 xps9320 kernel: [48012.283148] Freezing user space processes failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:07:54 xps9320 kernel: [48032.682674] Freezing user space processes failed after 20.001 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:08:15 xps9320 kernel: [48053.066382] Freezing user space processes failed after 20.001 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:08:37 xps9320 kernel: [48075.379470] Freezing user space processes failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:08:57 xps9320 kernel: [48095.707188] Freezing user space processes failed after 20.001 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:09:18 xps9320 kernel: [48116.090956] Freezing user space processes failed after 20.007 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:09:38 xps9320 kernel: [48136.438119] Freezing user space processes failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:09:59 xps9320 kernel: [48157.256494] Freezing user space processes failed after 20.002 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:10:19 xps9320 kernel: [48177.593855] Freezing user space processes failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:10:41 xps9320 kernel: [48199.473829] Freezing user space processes failed after 20.004 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:11:01 xps9320 kernel: [48219.806060] Freezing user space processes failed after 20.006 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:11:22 xps9320 kernel: [48240.188072] Freezing user space processes failed after 20.011 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 15 23:11:42 xps9320 kernel: [48260.947835] Freezing user space processes failed after 20.005 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 16 12:52:21 xps9320 kernel: [13407.856663] Freezing user space processes completed (elapsed 0.002 seconds) Could you rebuild kernel with CONFIG_PROVE_LOCKING option to discover locking related deadlocks? Then upload the log after reproduce the issue by shut down laptop with the new kernel. Also please attach the output of lsusb given it could be usb relevant. And it also would be helpful to try with latest noble kernel or recent upstream kernel, thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
And this call trace looks is related to current issue, I guess snd_power_ref_and_wait was waiting for snd_card_disconnect which wakes up power_sleep at the end of the code, but snd_card_disconnect -> snd_device_disconnect_all -> snd_pcm_dev_disconnect was blocked for some reason. Apr 15 21:48:23 xps9320 kernel: [43261.751897] INFO: task kworker/0:6:34416 blocked for more than 120 seconds. Apr 15 21:48:23 xps9320 kernel: [43261.751900] Tainted: G OE 6.5.0-27-generic #28~22.04.1-Ubuntu Apr 15 21:48:23 xps9320 kernel: [43261.751901] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Apr 15 21:48:23 xps9320 kernel: [43261.751903] task:kworker/0:6 state:D stack:0 pid:34416 ppid:2 flags:0x4000 Apr 15 21:48:23 xps9320 kernel: [43261.751907] Workqueue: usb_hub_wq hub_event Apr 15 21:48:23 xps9320 kernel: [43261.751913] Call Trace: Apr 15 21:48:23 xps9320 kernel: [43261.751915] Apr 15 21:48:23 xps9320 kernel: [43261.751916] __schedule+0x2cb/0x750 Apr 15 21:48:23 xps9320 kernel: [43261.751921] schedule+0x63/0x110 Apr 15 21:48:23 xps9320 kernel: [43261.751924] schedule_preempt_disabled+0x15/0x30 Apr 15 21:48:23 xps9320 kernel: [43261.751928] rwsem_down_write_slowpath+0x2a2/0x550 Apr 15 21:48:23 xps9320 kernel: [43261.751940] down_write+0x5c/0x80 Apr 15 21:48:23 xps9320 kernel: [43261.751945] snd_pcm_dev_disconnect+0x1d2/0x280 [snd_pcm] Apr 15 21:48:23 xps9320 kernel: [43261.751964] snd_device_disconnect_all+0x47/0xa0 [snd] Apr 15 21:48:23 xps9320 kernel: [43261.751979] snd_card_disconnect.part.0+0x10d/0x290 [snd] Apr 15 21:48:23 xps9320 kernel: [43261.752019] ? rpm_idle+0x25/0x2b0 Apr 15 21:48:23 xps9320 kernel: [43261.752023] snd_card_disconnect+0x13/0x30 [snd] Apr 15 21:48:23 xps9320 kernel: [43261.752039] usb_audio_disconnect+0x114/0x2c0 [snd_usb_audio] Apr 15 21:48:23 xps9320 kernel: [43261.752064] usb_unbind_interface+0x8e/0x280 Apr 15 21:48:23 xps9320 kernel: [43261.752069] device_remove+0x65/0x80 Apr 15 21:48:23 xps9320 kernel: [43261.752072] device_release_driver_internal+0x20b/0x270 Apr 15 21:48:23 xps9320 kernel: [43261.752077] device_release_driver+0x12/0x20 Apr 15 21:48:23 xps9320 kernel: [43261.752080] bus_remove_device+0xcb/0x140 Apr 15 21:48:23 xps9320 kernel: [43261.752083] device_del+0x161/0x3e0 Apr 15 21:48:23 xps9320 kernel: [43261.752086] ? kobject_put+0x67/0xa0 Apr 15 21:48:23 xps9320 kernel: [43261.752090] usb_disable_device+0xd5/0x280 Apr 15 21:48:23 xps9320 kernel: [43261.752093] usb_disconnect+0xe9/0x2e0 Apr 15 21:48:23 xps9320 kernel: [43261.752097] usb_disconnect+0xcd/0x2e0 Apr 15 21:48:23 xps9320 kernel: [43261.752100] usb_disconnect+0xcd/0x2e0 Apr 15 21:48:23 xps9320 kernel: [43261.752102] ? usb_control_msg+0x106/0x160 Apr 15 21:48:23 xps9320 kernel: [43261.752105] hub_port_connect+0x90/0xc30 Apr 15 21:48:23 xps9320 kernel: [43261.752109] hub_port_connect_change+0x91/0x300 Apr 15 21:48:23 xps9320 kernel: [43261.752113] port_event+0x652/0x810 Apr 15 21:48:23 xps9320 kernel: [43261.752117] hub_event+0x155/0x450 Apr 15 21:48:23 xps9320 kernel: [43261.752120] process_one_work+0x23d/0x450 Apr 15 21:48:23 xps9320 kernel: [43261.752125] worker_thread+0x50/0x3f0 Apr 15 21:48:23 xps9320 kernel: [43261.752128] ? __pfx_worker_thread+0x10/0x10 Apr 15 21:48:23 xps9320 kernel: [43261.752131] kthread+0xef/0x120 Apr 15 21:48:23 xps9320 kernel: [43261.752135] ? __pfx_kthread+0x10/0x10 Apr 15 21:48:23 xps9320 kernel: [43261.752139] ret_from_fork+0x44/0x70 Apr 15 21:48:23 xps9320 kernel: [43261.752143] ? __pfx_kthread+0x10/0x10 Apr 15 21:48:23 xps9320 kernel: [43261.752147] ret_from_fork_asm+0x1b/0x30 Apr 15 21:48:23 xps9320 kernel: [43261.752151] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
There is another calltrace in kern.log which might be another issue (probably need a separated bug report). Apr 15 21:45:23 xps9320 kernel: [43079.109011] Apr 15 21:45:23 xps9320 kernel: [43079.112281] UBSAN: shift-out-of-bounds in /build/linux-hwe-6.5-jkqeMi/linux-hwe-6.5-6.5.0/drivers/gpu/drm/display/drm_dp_mst_topology.c:4416:36 Apr 15 21:45:23 xps9320 kernel: [43079.115601] shift exponent -1 is negative Apr 15 21:45:23 xps9320 kernel: [43079.119073] CPU: 0 PID: 34404 Comm: kworker/0:3 Tainted: G OE 6.5.0-27-generic #28~22.04.1-Ubuntu Apr 15 21:45:23 xps9320 kernel: [43079.122523] Hardware name: Dell Inc. XPS 9320/0CW9KM, BIOS 2.8.0 11/13/2023 Apr 15 21:45:23 xps9320 kernel: [43079.126024] Workqueue: events output_poll_execute [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.129530] Call Trace: Apr 15 21:45:23 xps9320 kernel: [43079.132985] Apr 15 21:45:23 xps9320 kernel: [43079.136412] dump_stack_lvl+0x48/0x70 Apr 15 21:45:23 xps9320 kernel: [43079.139805] dump_stack+0x10/0x20 Apr 15 21:45:23 xps9320 kernel: [43079.143170] __ubsan_handle_shift_out_of_bounds+0x1ac/0x360 Apr 15 21:45:23 xps9320 kernel: [43079.146525] drm_dp_atomic_release_time_slots.cold+0x17/0x3d [drm_display_helper] Apr 15 21:45:23 xps9320 kernel: [43079.149904] intel_dp_mst_atomic_check+0xaa/0x180 [i915] Apr 15 21:45:23 xps9320 kernel: [43079.153378] ? update_connector_routing+0x2fc/0x3f0 [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.156738] drm_atomic_helper_check_modeset+0x300/0x610 [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.160084] intel_atomic_check+0xfe/0xb80 [i915] Apr 15 21:45:23 xps9320 kernel: [43079.163518] ? drm_plane_check_pixel_format+0x53/0xe0 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.166858] drm_atomic_check_only+0x1ac/0x400 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.170172] ? update_output_state+0x184/0x1a0 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.173478] drm_atomic_commit+0x58/0xd0 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.176765] ? __pfx___drm_printfn_info+0x10/0x10 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.180049] drm_client_modeset_commit_atomic+0x203/0x240 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.183332] drm_client_modeset_commit_locked+0x5b/0x170 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.186586] ? mutex_lock+0x12/0x50 Apr 15 21:45:23 xps9320 kernel: [43079.189776] drm_client_modeset_commit+0x26/0x50 [drm] Apr 15 21:45:23 xps9320 kernel: [43079.192980] __drm_fb_helper_restore_fbdev_mode_unlocked+0xc2/0x100 [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.196179] drm_fb_helper_hotplug_event+0x10b/0x120 [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.199336] intel_fbdev_output_poll_changed+0x6b/0xb0 [i915] Apr 15 21:45:23 xps9320 kernel: [43079.202568] output_poll_execute+0x237/0x280 [drm_kms_helper] Apr 15 21:45:23 xps9320 kernel: [43079.205686] ? __schedule+0x2d3/0x750 Apr 15 21:45:23 xps9320 kernel: [43079.208777] process_one_work+0x23d/0x450 Apr 15 21:45:23 xps9320 kernel: [43079.211856] worker_thread+0x50/0x3f0 Apr 15 21:45:23 xps9320 kernel: [43079.214921] ? __pfx_worker_thread+0x10/0x10 Apr 15 21:45:23 xps9320 kernel: [43079.217984] kthread+0xef/0x120 Apr 15 21:45:23 xps9320 kernel: [43079.221037] ? __pfx_kthread+0x10/0x10 Apr 15 21:45:23 xps9320 kernel: [43079.224072] ret_from_fork+0x44/0x70 Apr 15 21:45:23 xps9320 kernel: [43079.227100] ? __pfx_kthread+0x10/0x10 Apr 15 21:45:23 xps9320 kernel: [43079.230123] ret_from_fork_asm+0x1b/0x30 Apr 15 21:45:23 xps9320 kernel: [43079.233124] Apr 15 21:45:23 xps9320 kernel: [43079.235686] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
rav@xps9320:~$ cat /proc/asound/modules 0 snd_soc_sof_sdw 1 snd_usb_audio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Here's the kern.log since the last-but-one reboot. ** Attachment added: "kern.log" https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+attachment/5766127/+files/kern.log.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
Could you share which audio driver is used in the affected system by "cat /proc/asound/modules"? And pls attach the full kern.log to check if something is suspicious here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
** Changed in: linux-signed-hwe-6.5 (Ubuntu) Assignee: Anthony Wong (anthonywong) => GuoqingJiang (guoqingjiang) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
** Changed in: linux-signed-hwe-6.5 (Ubuntu) Assignee: (unassigned) => Anthony Wong (anthonywong) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 2061091] Re: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0)
I found a very similar report at https://discussion.fedoraproject.org/t/freezing-user-space-processes- failed-after-20-000-seconds-2-tasks-refusing-to-freeze-wq-busy-0/92672, but no resolution there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2061091 Title: Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
