Control: tags -1 + moreinfo On Fri, Mar 13, 2026 at 04:18:42PM +0100, Sanjoy Mahajan wrote: > Package: src:linux > Version: 6.19.6-1 > Severity: grave > > Since running the 6.19 kernel package after a reboot (the previous boot > was using 6.16, I think), putting the laptop to sleep would hang and > eventually produce a kernel call trace. In the syslog, the first sign > of the error is > > kernel: INFO: task kworker/u16:0:13041 blocked for more than 120 seconds. > kernel: Tainted: G I 6.19.6+deb14-amd64 #1 Debian > 6.19.6-1 > > (Syslog extract attached.) > > It never unblocks, and I have to reboot. Also the X screen is blank > (with backlight), I guess because the laptop has halfway gone to sleep > and is stuck there. > > I tried the 6.18 kernel package, which produced a similar problem: > Putting the laptop to sleep also would hang, but in that case the syslog > lists systemd-sleep as the blocked task. > > Until rebooting, which booted the 6.19 kernel, I have not had this > problem. The previous working kernel was 6.16, I think. However, that > boot had such a long uptime (months) that none of my rotated > /var/log/syslog.n files show the boot (so I am not sure of the kernel > version). > > > I can easily reboot into 6.19 to run tests if needed. For now I am > using the stable package (6.12).
It would be maybe helpful and give us some idea what is going on if you can provide the systemctl status output, so we see what processes are in the user.slice, can you please provide that? Additionally, may you please when trying to suspend and htings hang trigger a dump of the current tasks (you need to enable first the dumping of processes etc via /proc/sys/kernel/sysrq), see https://docs.kernel.org/admin-guide/sysrq.html now given we cannot easily access easily the system at that stage I guess as ssh is already cone, can you attach a netconsole https://docs.kernel.org/networking/netconsole.html to gather that dump? Thanks already, Regards, Salvatore
