Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.debian.kernel > #90253 > unrolled thread
| Started by | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| First post | 2025-11-25 21:10 +0100 |
| Last post | 2026-01-20 18:10 +0100 |
| Articles | 5 — 3 participants |
Back to article view | Back to linux.debian.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) Salvatore Bonaccorso <carnil@debian.org> - 2025-11-25 21:10 +0100
Processed: Re: Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-11-25 21:10 +0100
Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) Vincent Lefevre <vincent@vinc17.net> - 2025-11-26 13:50 +0100
Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) Salvatore Bonaccorso <carnil@debian.org> - 2026-01-09 08:10 +0100
Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) Vincent Lefevre <vincent@vinc17.net> - 2026-01-20 18:10 +0100
| From | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| Date | 2025-11-25 21:10 +0100 |
| Subject | Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) |
| Message-ID | <LV7wl-fIfk-3@gated-at.bofh.it> |
Control: tags -1 + moreinfo Hi Vincent, On Mon, Sep 29, 2025 at 05:56:05PM +0200, Vincent Lefevre wrote: > Package: src:linux > Version: 6.16.8-1 > Severity: important > > When logging out: > > Sep 29 10:01:20 qaa kernel: ------------[ cut here ]------------ > Sep 29 10:01:20 qaa kernel: UBSAN: shift-out-of-bounds in /build/reproducible-path/linux-6.16.8/drivers/gpu/drm/display/drm_dp_mst_topology.c:4574:36 > Sep 29 10:01:20 qaa kernel: shift exponent -1 is negative > Sep 29 10:01:20 qaa kernel: CPU: 4 UID: 0 PID: 490795 Comm: Xorg Not tainted 6.16.8+deb14-amd64 #1 PREEMPT(lazy) Debian 6.16.8-1 > Sep 29 10:01:20 qaa kernel: Hardware name: Dell Inc. Precision 5570/01Y4G1, BIOS 1.32.1 04/28/2025 > Sep 29 10:01:20 qaa kernel: Call Trace: > Sep 29 10:01:20 qaa kernel: <TASK> > Sep 29 10:01:20 qaa kernel: dump_stack_lvl+0x5d/0x80 > Sep 29 10:01:20 qaa kernel: ubsan_epilogue+0x5/0x2b > Sep 29 10:01:20 qaa kernel: __ubsan_handle_shift_out_of_bounds.cold+0x5e/0x113 > Sep 29 10:01:20 qaa kernel: drm_dp_atomic_release_time_slots.cold+0x18/0x61 [drm_display_helper] > Sep 29 10:01:20 qaa kernel: drm_atomic_helper_check_modeset+0x484/0xe30 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: intel_atomic_check+0xec/0x2b10 [i915] > Sep 29 10:01:20 qaa kernel: drm_atomic_check_only+0x63a/0xab0 [drm] > Sep 29 10:01:20 qaa kernel: drm_atomic_commit+0x71/0xe0 [drm] > Sep 29 10:01:20 qaa kernel: ? __pfx___drm_printfn_info+0x10/0x10 [drm] > Sep 29 10:01:20 qaa kernel: drm_client_modeset_commit_atomic+0x201/0x250 [drm] > Sep 29 10:01:20 qaa kernel: drm_client_modeset_commit_locked+0x5a/0x160 [drm] > Sep 29 10:01:20 qaa kernel: ? drm_setup_crtcs_fb+0xfa/0x150 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: __drm_fb_helper_restore_fbdev_mode_unlocked+0x5e/0xd0 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: drm_fb_helper_hotplug_event+0xe6/0x100 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: __drm_fb_helper_restore_fbdev_mode_unlocked+0xbd/0xd0 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: drm_fb_helper_set_par+0x30/0x40 [drm_kms_helper] > Sep 29 10:01:20 qaa kernel: intel_fbdev_set_par+0x38/0x80 [i915] > Sep 29 10:01:20 qaa kernel: fb_set_var+0x248/0x430 > Sep 29 10:01:20 qaa kernel: ? __slab_free+0xdf/0x310 > Sep 29 10:01:20 qaa kernel: ? __slab_free+0xdf/0x310 > Sep 29 10:01:20 qaa kernel: ? __slab_free+0xdf/0x310 > Sep 29 10:01:20 qaa kernel: fbcon_blank+0x28e/0x390 > Sep 29 10:01:20 qaa kernel: do_unblank_screen+0xd6/0x1e0 > Sep 29 10:01:20 qaa kernel: vt_ioctl+0x583/0x15b0 > Sep 29 10:01:20 qaa kernel: tty_ioctl+0xe8/0x8c0 > Sep 29 10:01:20 qaa kernel: __x64_sys_ioctl+0x93/0xe0 > Sep 29 10:01:20 qaa kernel: do_syscall_64+0x84/0x320 > Sep 29 10:01:20 qaa kernel: ? __x64_sys_close+0x3d/0x80 > Sep 29 10:01:20 qaa kernel: ? kmem_cache_free+0x3a3/0x450 > Sep 29 10:01:20 qaa kernel: ? do_syscall_64+0x30c/0x320 > Sep 29 10:01:20 qaa kernel: ? do_user_addr_fault+0x2c3/0x7f0 > Sep 29 10:01:20 qaa kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e > Sep 29 10:01:20 qaa kernel: RIP: 0033:0x7f8285d648db > Sep 29 10:01:20 qaa kernel: Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 > Sep 29 10:01:20 qaa kernel: RSP: 002b:00007ffec1647a00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 > Sep 29 10:01:20 qaa kernel: RAX: ffffffffffffffda RBX: 000055fbd6e6ab80 RCX: 00007f8285d648db > Sep 29 10:01:20 qaa kernel: RDX: 0000000000000000 RSI: 0000000000004b3a RDI: 000000000000000e > Sep 29 10:01:20 qaa kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 > Sep 29 10:01:20 qaa kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 000055fbd6ea5794 > Sep 29 10:01:20 qaa kernel: R13: 00007ffec1647c48 R14: 000055fbd6e90c10 R15: 000055fbd6e90bf8 > Sep 29 10:01:20 qaa kernel: </TASK> > Sep 29 10:01:20 qaa kernel: ---[ end trace ]--- > > What I did: > * Earlier, the laptop was connected to a dock. > * I logged out. > * I disconnected the machine from the dock. > * I closed the lid, which suspended the machine as expected: > Sep 29 09:19:53 qaa systemd-logind[1241]: Lid closed. > Sep 29 09:19:53 qaa systemd-logind[1241]: Suspending... > > The above occurred after I opened the lid. Assuming you can reproduce this, can you test the patch from https://lore.kernel.org/all/20251119094650.799135-1-suraj.kandpal@intel.com/ and report back if that fixes the issue? In case it does, can you please followup to the upstream patch sumission adding your Tested-by (and ideally get as well a Closes tag for this bug for easier tracking). I might be completely wrong on it. Regards, Salvatore
[toc] | [next] | [standalone]
| From | "Debian Bug Tracking System" <owner@bugs.debian.org> |
|---|---|
| Date | 2025-11-25 21:10 +0100 |
| Subject | Processed: Re: Bug#1116643: UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) |
| Message-ID | <LV7wl-fIfk-11@gated-at.bofh.it> |
| In reply to | #90253 |
Processing control commands: > tags -1 + moreinfo Bug #1116643 [src:linux] UBSAN: shift-out-of-bounds in .../drivers/gpu/drm/display/drm_dp_mst_topology.c (shift exponent -1) Added tag(s) moreinfo. -- 1116643: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1116643 Debian Bug Tracking System Contact owner@bugs.debian.org with problems
[toc] | [prev] | [next] | [standalone]
| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2025-11-26 13:50 +0100 |
| Message-ID | <LVn85-fUwW-11@gated-at.bofh.it> |
| In reply to | #90253 |
On 2025-11-25 20:59:16 +0100, Salvatore Bonaccorso wrote: > > What I did: > > * Earlier, the laptop was connected to a dock. > > * I logged out. > > * I disconnected the machine from the dock. > > * I closed the lid, which suspended the machine as expected: > > Sep 29 09:19:53 qaa systemd-logind[1241]: Lid closed. > > Sep 29 09:19:53 qaa systemd-logind[1241]: Suspending... > > > > The above occurred after I opened the lid. > > Assuming you can reproduce this, Not tried yet, but this had already occurred once, with the 6.16.7+deb14-amd64 kernel: Sep 15 02:48:08 qaa kernel: Linux version 6.16.7+deb14-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.3.0-8) 14.3.0, GNU ld (GNU Binutils for Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.7-1 (2025-09-11) Sep 15 02:48:08 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.16.7+deb14-amd64 root=/dev/mapper/qaa--vg-root ro quiet [...] Sep 15 02:48:09 qaa boltd[1396]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) [...] Sep 15 03:53:11 qaa systemd-logind[1253]: Lid closed. Sep 15 03:53:11 qaa kernel: ACPI: button: The lid device is not compliant to SW_LID. [...] Sep 15 08:23:19 qaa systemd-logind[1253]: Lid opened. [...] Sep 15 08:23:30 qaa boltd[1396]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) Sep 15 08:23:30 qaa kernel: thunderbolt 0-1: device disconnected [...] Sep 15 08:23:35 qaa systemd-logind[1253]: Lid closed. Sep 15 08:23:35 qaa systemd-logind[1253]: Suspending... [...] Sep 15 08:23:35 qaa wpa_supplicant[1319]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 Sep 15 09:02:12 qaa kernel: Freezing user space processes Sep 15 09:02:12 qaa kernel: Freezing user space processes completed (elapsed 0.216 seconds) [...] Sep 15 09:02:12 qaa systemd-logind[1253]: Lid opened. [...] Sep 15 09:53:02 qaa systemd-logind[1253]: Lid closed. Sep 15 09:53:02 qaa systemd-logind[1253]: Suspending... [...] Sep 15 09:53:03 qaa wpa_supplicant[1319]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 Sep 15 13:17:55 qaa kernel: Freezing user space processes Sep 15 13:17:55 qaa kernel: Freezing user space processes completed (elapsed 0.001 seconds) Sep 15 13:17:55 qaa kernel: OOM killer disabled. Sep 15 13:17:55 qaa kernel: Freezing remaining freezable tasks Sep 15 13:17:55 qaa kernel: Freezing remaining freezable tasks completed (elapsed 0.001 seconds) Sep 15 13:17:55 qaa kernel: printk: Suspending console(s) (use no_console_suspend to debug) Sep 15 13:17:55 qaa kernel: ------------[ cut here ]------------ Sep 15 13:17:55 qaa kernel: UBSAN: shift-out-of-bounds in /build/reproducible-path/linux-6.16.7/drivers/gpu/drm/display/drm_dp_mst_topology.c:4574:36 Sep 15 13:17:55 qaa kernel: shift exponent -1 is negative [...] then various crashes when rebooting at 17:50:57. Recall of the issue on September 29: Sep 25 17:46:18 qaa kernel: Linux version 6.16.8+deb14-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.3.0-8) 14.3.0, GNU ld (GNU Binutils for Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.8-1 (2025-09-21) Sep 25 17:46:18 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.16.8+deb14-amd64 root=/dev/mapper/qaa--vg-root ro quiet [...] Sep 25 17:46:19 qaa boltd[1361]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) [...] Sep 25 17:46:38 qaa systemd-logind[1241]: Lid closed. Sep 25 17:46:38 qaa kernel: ACPI: button: The lid device is not compliant to SW_LID. [...] Sep 29 09:19:16 qaa systemd-logind[1241]: Lid opened. [...] Sep 29 09:19:47 qaa kernel: thunderbolt 0-1: device disconnected Sep 29 09:19:47 qaa boltd[1361]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) [...] Sep 29 09:19:53 qaa systemd-logind[1241]: Lid closed. Sep 29 09:19:53 qaa systemd-logind[1241]: Suspending... [...] Sep 29 09:19:53 qaa wpa_supplicant[1297]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 Sep 29 10:00:39 qaa kernel: Freezing user space processes Sep 29 10:00:39 qaa systemd-logind[1241]: Lid opened. Sep 29 10:00:39 qaa rtkit-daemon[1845]: The canary thread is apparently starving. Taking action. Sep 29 10:00:39 qaa kernel: Freezing user space processes completed (elapsed 0.001 seconds) [...] Sep 29 10:00:59 qaa systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully. Sep 29 10:01:18 qaa lightdm[490939]: Failed to write utmpx: No such file or directory Sep 29 10:01:18 qaa lightdm[490939]: pam_unix(lightdm:session): session closed for user vinc17 Sep 29 10:01:18 qaa systemd-logind[1241]: Session 818 logged out. Waiting for processes to exit. [...] Sep 29 10:01:20 qaa kernel: ------------[ cut here ]------------ Sep 29 10:01:20 qaa kernel: UBSAN: shift-out-of-bounds in /build/reproducible-path/linux-6.16.8/drivers/gpu/drm/display/drm_dp_mst_topology.c:4574:36 Sep 29 10:01:20 qaa kernel: shift exponent -1 is negative [...] Lines to look at: lid (closed|opened)|thunderbolt.*connect|suspend The only other time I did something similar later was with the older kernel 6.7.12-amd64, and the issue did not occur. And previously: Jul 18 15:40:15 qaa kernel: Linux version 6.12.38+deb13-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.38-1 (2025-07-16) Jul 18 15:40:15 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.12.38+deb13-amd64 root=/dev/mapper/qaa--vg-root ro quiet [...] Jul 19 08:41:15 qaa kernel: thunderbolt 0-1: device disconnected Jul 19 08:41:15 qaa boltd[1592]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) [...] Jul 19 08:41:20 qaa systemd-logind[1450]: Lid closed. Jul 19 08:41:20 qaa systemd-logind[1450]: Suspending... [...] Jul 19 08:41:21 qaa wpa_supplicant[1523]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 Jul 19 11:52:32 qaa kernel: Freezing user space processes [...] Jul 19 11:52:32 qaa systemd-logind[1450]: Lid opened. [...] Jul 28 10:30:45 qaa systemd-logind[1450]: Lid closed. Jul 28 10:30:45 qaa systemd-logind[1450]: Suspending... [...] Jul 28 10:30:45 qaa kernel: Freezing user space processes Jul 28 12:08:43 qaa kernel: Freezing user space processes completed (elapsed 0.002 seconds) [...] Jul 28 12:08:43 qaa boltd[1592]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) [...] Jul 28 12:08:46 qaa systemd-logind[1450]: Lid opened. but I got no crashes either. > can you test the patch from > https://lore.kernel.org/all/20251119094650.799135-1-suraj.kandpal@intel.com/ > and report back if that fixes the issue? If I can still reproduce the issue, I hope I can try next week (this is not very practical as there is space for only 2 initrd.img in /boot). -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
[toc] | [prev] | [next] | [standalone]
| From | Salvatore Bonaccorso <carnil@debian.org> |
|---|---|
| Date | 2026-01-09 08:10 +0100 |
| Message-ID | <MbeNb-9dpE-3@gated-at.bofh.it> |
| In reply to | #90274 |
Hi Vincent, On Wed, Nov 26, 2025 at 01:44:17PM +0100, Vincent Lefevre wrote: > On 2025-11-25 20:59:16 +0100, Salvatore Bonaccorso wrote: > > > What I did: > > > * Earlier, the laptop was connected to a dock. > > > * I logged out. > > > * I disconnected the machine from the dock. > > > * I closed the lid, which suspended the machine as expected: > > > Sep 29 09:19:53 qaa systemd-logind[1241]: Lid closed. > > > Sep 29 09:19:53 qaa systemd-logind[1241]: Suspending... > > > > > > The above occurred after I opened the lid. > > > > Assuming you can reproduce this, > > Not tried yet, but this had already occurred once, with the > 6.16.7+deb14-amd64 kernel: > > Sep 15 02:48:08 qaa kernel: Linux version 6.16.7+deb14-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.3.0-8) 14.3.0, GNU ld (GNU Binutils for Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.7-1 (2025-09-11) > Sep 15 02:48:08 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.16.7+deb14-amd64 root=/dev/mapper/qaa--vg-root ro quiet > [...] > Sep 15 02:48:09 qaa boltd[1396]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > [...] > Sep 15 03:53:11 qaa systemd-logind[1253]: Lid closed. > Sep 15 03:53:11 qaa kernel: ACPI: button: The lid device is not compliant to SW_LID. > [...] > Sep 15 08:23:19 qaa systemd-logind[1253]: Lid opened. > [...] > Sep 15 08:23:30 qaa boltd[1396]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > Sep 15 08:23:30 qaa kernel: thunderbolt 0-1: device disconnected > [...] > Sep 15 08:23:35 qaa systemd-logind[1253]: Lid closed. > Sep 15 08:23:35 qaa systemd-logind[1253]: Suspending... > [...] > Sep 15 08:23:35 qaa wpa_supplicant[1319]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 > Sep 15 09:02:12 qaa kernel: Freezing user space processes > Sep 15 09:02:12 qaa kernel: Freezing user space processes completed (elapsed 0.216 seconds) > [...] > Sep 15 09:02:12 qaa systemd-logind[1253]: Lid opened. > [...] > Sep 15 09:53:02 qaa systemd-logind[1253]: Lid closed. > Sep 15 09:53:02 qaa systemd-logind[1253]: Suspending... > [...] > Sep 15 09:53:03 qaa wpa_supplicant[1319]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 > Sep 15 13:17:55 qaa kernel: Freezing user space processes > Sep 15 13:17:55 qaa kernel: Freezing user space processes completed (elapsed 0.001 seconds) > Sep 15 13:17:55 qaa kernel: OOM killer disabled. > Sep 15 13:17:55 qaa kernel: Freezing remaining freezable tasks > Sep 15 13:17:55 qaa kernel: Freezing remaining freezable tasks completed (elapsed 0.001 seconds) > Sep 15 13:17:55 qaa kernel: printk: Suspending console(s) (use no_console_suspend to debug) > Sep 15 13:17:55 qaa kernel: ------------[ cut here ]------------ > Sep 15 13:17:55 qaa kernel: UBSAN: shift-out-of-bounds in /build/reproducible-path/linux-6.16.7/drivers/gpu/drm/display/drm_dp_mst_topology.c:4574:36 > Sep 15 13:17:55 qaa kernel: shift exponent -1 is negative > [...] > > then various crashes when rebooting at 17:50:57. > > Recall of the issue on September 29: > > Sep 25 17:46:18 qaa kernel: Linux version 6.16.8+deb14-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.3.0-8) 14.3.0, GNU ld (GNU Binutils for Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.8-1 (2025-09-21) > Sep 25 17:46:18 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.16.8+deb14-amd64 root=/dev/mapper/qaa--vg-root ro quiet > [...] > Sep 25 17:46:19 qaa boltd[1361]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > [...] > Sep 25 17:46:38 qaa systemd-logind[1241]: Lid closed. > Sep 25 17:46:38 qaa kernel: ACPI: button: The lid device is not compliant to SW_LID. > [...] > Sep 29 09:19:16 qaa systemd-logind[1241]: Lid opened. > [...] > Sep 29 09:19:47 qaa kernel: thunderbolt 0-1: device disconnected > Sep 29 09:19:47 qaa boltd[1361]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > [...] > Sep 29 09:19:53 qaa systemd-logind[1241]: Lid closed. > Sep 29 09:19:53 qaa systemd-logind[1241]: Suspending... > [...] > Sep 29 09:19:53 qaa wpa_supplicant[1297]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 > Sep 29 10:00:39 qaa kernel: Freezing user space processes > Sep 29 10:00:39 qaa systemd-logind[1241]: Lid opened. > Sep 29 10:00:39 qaa rtkit-daemon[1845]: The canary thread is apparently starving. Taking action. > Sep 29 10:00:39 qaa kernel: Freezing user space processes completed (elapsed 0.001 seconds) > [...] > Sep 29 10:00:59 qaa systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully. > Sep 29 10:01:18 qaa lightdm[490939]: Failed to write utmpx: No such file or directory > Sep 29 10:01:18 qaa lightdm[490939]: pam_unix(lightdm:session): session closed for user vinc17 > Sep 29 10:01:18 qaa systemd-logind[1241]: Session 818 logged out. Waiting for processes to exit. > [...] > Sep 29 10:01:20 qaa kernel: ------------[ cut here ]------------ > Sep 29 10:01:20 qaa kernel: UBSAN: shift-out-of-bounds in /build/reproducible-path/linux-6.16.8/drivers/gpu/drm/display/drm_dp_mst_topology.c:4574:36 > Sep 29 10:01:20 qaa kernel: shift exponent -1 is negative > [...] > > Lines to look at: > lid (closed|opened)|thunderbolt.*connect|suspend > > The only other time I did something similar later was with the > older kernel 6.7.12-amd64, and the issue did not occur. > > And previously: > > Jul 18 15:40:15 qaa kernel: Linux version 6.12.38+deb13-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.38-1 (2025-07-16) > Jul 18 15:40:15 qaa kernel: Command line: BOOT_IMAGE=/vmlinuz-6.12.38+deb13-amd64 root=/dev/mapper/qaa--vg-root ro quiet > [...] > Jul 19 08:41:15 qaa kernel: thunderbolt 0-1: device disconnected > Jul 19 08:41:15 qaa boltd[1592]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] disconnected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > [...] > Jul 19 08:41:20 qaa systemd-logind[1450]: Lid closed. > Jul 19 08:41:20 qaa systemd-logind[1450]: Suspending... > [...] > Jul 19 08:41:21 qaa wpa_supplicant[1523]: nl80211: deinit ifname=wlp0s20f3 disabled_11b_rates=0 > Jul 19 11:52:32 qaa kernel: Freezing user space processes > [...] > Jul 19 11:52:32 qaa systemd-logind[1450]: Lid opened. > [...] > Jul 28 10:30:45 qaa systemd-logind[1450]: Lid closed. > Jul 28 10:30:45 qaa systemd-logind[1450]: Suspending... > [...] > Jul 28 10:30:45 qaa kernel: Freezing user space processes > Jul 28 12:08:43 qaa kernel: Freezing user space processes completed (elapsed 0.002 seconds) > [...] > Jul 28 12:08:43 qaa boltd[1592]: [41ba8780-0029-WD22TB4 Thunderbolt Dock ] connected: connected (/sys/devices/pci0000:00/0000:00:0d.2/domain0/0-0/0-1) > [...] > Jul 28 12:08:46 qaa systemd-logind[1450]: Lid opened. > > but I got no crashes either. > > > can you test the patch from > > https://lore.kernel.org/all/20251119094650.799135-1-suraj.kandpal@intel.com/ > > and report back if that fixes the issue? > > If I can still reproduce the issue, I hope I can try next week (this > is not very practical as there is space for only 2 initrd.img in > /boot). Were you able to reproduce the issue and if yes test that patch? Regards, Salvatore
[toc] | [prev] | [next] | [standalone]
| From | Vincent Lefevre <vincent@vinc17.net> |
|---|---|
| Date | 2026-01-20 18:10 +0100 |
| Message-ID | <MfnoR-bZaX-15@gated-at.bofh.it> |
| In reply to | #90753 |
Hi Salvatore, On 2026-01-09 06:38:39 +0100, Salvatore Bonaccorso wrote: > Were you able to reproduce the issue and if yes test that patch? Sorry, I could not try yet. This has been a busy period, and still until at least around February 9. -- Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Pascaline project (LIP, ENS-Lyon)
[toc] | [prev] | [standalone]
Back to top | Article view | linux.debian.kernel
csiph-web