WARNING: at kernel/workqueue.c:1473 __queue_work+0x3b8/0x3d0

[Daniel Jordan]

On Wed, Oct 07, 2020 at 09:41:17PM +0200, Corentin Labbe wrote:
> I have added CONFIG_FTRACE=y and your second patch.
> The boot log can be seen at http://kernel.montjoie.ovh/108789.log
> 
> But it seems the latest dump_stack addition flood a bit.

Heh, sorry for making it spew, there wasn't such a flood when I tried.  Your
output is sufficiently incriminating, so I'll go post the fix now.

> I have started to read ftrace documentation, but if you have a quick what to do in /sys/kernel/debug/tracing, it will be helpfull.

Sure, you can view the trace in /sys/kernel/debug/tracing/trace and
kernel-parameters.txt has the boot options documented.