linux-kernel - Re: WARNING: at kernel/workqueue.c:1473 __queue

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Date:   Thu, 8 Oct 2020 13:07:36 -0400
From:   Daniel Jordan <daniel.m.jordan@...cle.com>
To:     Corentin Labbe <clabbe.montjoie@...il.com>
Cc:     Daniel Jordan <daniel.m.jordan@...cle.com>,
        Robin Murphy <robin.murphy@....com>, mark.rutland@....com,
        jiangshanlai@...il.com, linux-kernel@...r.kernel.org,
        linux-crypto@...r.kernel.org, tj@...nel.org,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: WARNING: at kernel/workqueue.c:1473 __queue_work+0x3b8/0x3d0

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.