linux-kernel - Re: Bug in Kernel 6.8.x, 6.9.x Causing Trace/Panic During Shutdown/Reboot

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Message-ID: <20240529144757.79d09eeb@rorschach.local.home>
Date: Wed, 29 May 2024 14:47:57 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Ilkka Naulapää <digirigawa@...il.com>
Cc: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>, Linux regressions mailing list
 <regressions@...ts.linux.dev>, stable@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: Bug in Kernel 6.8.x, 6.9.x Causing Trace/Panic During
 Shutdown/Reboot

On Wed, 29 May 2024 21:36:08 +0300
Ilkka Naulapää <digirigawa@...il.com> wrote:

> applied your patch without others, so trace and panic there.
> Screenshot attached. Also tested kernels backward and found out that

Bah, it's still in an RCU callback, which doesn't tell us why a
normal inode is being sent to the trace inode free list.

> this trace bug first triggered on 6.6-rc1.

Hmm, that's when eventfs was added.

> 
> Let me know if you need more assistance with this.

Let me make a debug patch (that crashes on this issue) for that kernel,
and perhaps you could bisect it?

Thanks!

-- Steve