linux-kernel - Re: [syzbot] [arm?] WARNING in delayed_work_timer

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Message-ID: <Z6u6MgaJWMpjCn4O@slm.duckdns.org>
Date: Tue, 11 Feb 2025 10:59:30 -1000
From: Tejun Heo <tj@...nel.org>
To: Will Deacon <will@...nel.org>
Cc: syzbot <syzbot+e13e654d315d4da1277c@...kaller.appspotmail.com>,
	catalin.marinas@....com, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
	maz@...nel.org, mark.rutland@....com, richard.xnu.clark@...il.com,
	jiangshanlai@...il.com, marcel@...tmann.org,
	johan.hedberg@...il.com, luiz.dentz@...il.com,
	linux-bluetooth@...r.kernel.org
Subject: Re: [syzbot] [arm?] WARNING in delayed_work_timer_fn

On Tue, Feb 11, 2025 at 11:10:46AM +0000, Will Deacon wrote:
> Given that this seems to explode a few times a month, I wonder if it's
> worth adding some instrumentation to e.g. dump the name of the workqueue?

It's usually most useful to print out the work function when identifying the
culprit. I'd be happy to take the patch.

Thanks.

-- 
tejun