XPost: linux.debian.bugs.dist   
   From: carnil@debian.org   
      
   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 (   
   ebian-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-   
   .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 /bui   
   d/reproducible-path/linux-6.16.7/drivers/gpu/drm/display/drm_dp_   
   st_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 (   
   ebian-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-   
   .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 /bui   
   d/reproducible-path/linux-6.16.8/drivers/gpu/drm/display/drm_dp_   
   st_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:   
   >   
      
   [continued in next message]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)