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] <TASK> 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] </TASK> Apr 15 21:45:23 xps9320 kernel: [43079.235686] ================================================================================ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-6.5 in 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) Status in linux-signed-hwe-6.5 package in Ubuntu: New Bug description: Sometimes, when trying to shut down or suspend my laptop, it gets stuck on the console screen. If I was suspending, it eventually gives up and goes back to the X session. During a shutdown it hangs forever and the only solution seems to be to force a reboot with Magic-SysRq. The following appears in `kern.log`: ``` Apr 12 08:59:54 xps9320 kernel: [173172.510341] Freezing user space processes failed after 20.008 seconds (1 tasks refusing to freeze, wq_busy=0): Apr 12 08:59:54 xps9320 kernel: [173172.515669] task:wireplumber state:D stack:0 pid:2408 ppid:2398 flags:0x00000006 Apr 12 08:59:54 xps9320 kernel: [173172.518923] Call Trace: Apr 12 08:59:54 xps9320 kernel: [173172.521755] <TASK> Apr 12 08:59:54 xps9320 kernel: [173172.524099] __schedule+0x2cb/0x750 Apr 12 08:59:54 xps9320 kernel: [173172.526333] schedule+0x63/0x110 Apr 12 08:59:54 xps9320 kernel: [173172.528585] snd_power_ref_and_wait+0xe5/0x140 [snd] Apr 12 08:59:54 xps9320 kernel: [173172.530825] ? __pfx_autoremove_wake_function+0x10/0x10 Apr 12 08:59:54 xps9320 kernel: [173172.533103] snd_ctl_elem_info+0x4f/0x1b0 [snd] Apr 12 08:59:54 xps9320 kernel: [173172.535354] snd_ctl_elem_info_user+0x59/0xc0 [snd] Apr 12 08:59:54 xps9320 kernel: [173172.537598] snd_ctl_ioctl+0x1d4/0x650 [snd] Apr 12 08:59:54 xps9320 kernel: [173172.539846] ? __fget_light+0xa5/0x120 Apr 12 08:59:54 xps9320 kernel: [173172.542082] __x64_sys_ioctl+0xa0/0xf0 Apr 12 08:59:54 xps9320 kernel: [173172.544334] do_syscall_64+0x58/0x90 Apr 12 08:59:54 xps9320 kernel: [173172.546566] ? syscall_exit_to_user_mode+0x37/0x60 Apr 12 08:59:54 xps9320 kernel: [173172.548838] ? do_syscall_64+0x67/0x90 Apr 12 08:59:54 xps9320 kernel: [173172.551085] ? do_syscall_64+0x67/0x90 Apr 12 08:59:54 xps9320 kernel: [173172.553342] ? syscall_exit_to_user_mode+0x37/0x60 Apr 12 08:59:54 xps9320 kernel: [173172.555596] ? do_syscall_64+0x67/0x90 Apr 12 08:59:54 xps9320 kernel: [173172.557828] ? common_interrupt+0x54/0xb0 Apr 12 08:59:54 xps9320 kernel: [173172.560075] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 Apr 12 08:59:54 xps9320 kernel: [173172.562321] RIP: 0033:0x70f3adb1a94f Apr 12 08:59:54 xps9320 kernel: [173172.564650] RSP: 002b:00007ffef2072940 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Apr 12 08:59:54 xps9320 kernel: [173172.566925] RAX: ffffffffffffffda RBX: 00007ffef20729b0 RCX: 000070f3adb1a94f Apr 12 08:59:54 xps9320 kernel: [173172.569222] RDX: 00007ffef20729b0 RSI: 00000000c1105511 RDI: 0000000000000022 Apr 12 08:59:54 xps9320 kernel: [173172.571501] RBP: 00007ffef2072b90 R08: 000065107d2b6070 R09: 0000000000000004 Apr 12 08:59:54 xps9320 kernel: [173172.573762] R10: fffffffffffff014 R11: 0000000000000246 R12: 000065107d2ee100 Apr 12 08:59:54 xps9320 kernel: [173172.576047] R13: 000065107d1fb400 R14: 00007ffef2072b30 R15: 00007ffef2072ad0 Apr 12 08:59:54 xps9320 kernel: [173172.578308] </TASK> ``` Another point of interest is that, when in this situation: * `lsusb` hangs after printing out a few lines * Outgoing SSH connections hang unless I clear SSH_AUTH_SOCK. gpg-agent appears to be trying to check for smartcards. So I guess there is some sort of deadlock in the USB subsystem which is causing all the other problems? ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: linux-image-6.5.0-27-generic 6.5.0-27.28~22.04.1 ProcVersionSignature: Ubuntu 6.5.0-27.28~22.04.1-generic 6.5.13 Uname: Linux 6.5.0-27-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.5 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Fri Apr 12 09:42:52 2024 InstallationDate: Installed on 2022-06-28 (653 days ago) InstallationMedia: Xubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419) SourcePackage: linux-signed-hwe-6.5 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-6.5/+bug/2061091/+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
