linux-kernel - Re: WARNING in __perf_event

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Message-ID: <CAJg=8jynwj2SkEBYRM_XKs=zYh_wg5RKxMDTCOQxs5WRthRQfg@mail.gmail.com>
Date: Thu, 13 Jun 2024 13:29:29 -0700
From: Marius Fleischer <fleischermarius@...il.com>
To: Andi Kleen <ak@...ux.intel.com>
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
	Andrii Nakryiko <andrii@...nel.org>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller@...glegroups.com, 
	harrisonmichaelgreen@...il.com
Subject: Re: WARNING in __perf_event_overflow

Hi Andi,

Thanks for the response!

On Thu, 13 Jun 2024 at 08:59, Andi Kleen <ak@...ux.intel.com> wrote:
>
> Marius Fleischer <fleischermarius@...il.com> writes:
>
> > ======================================================
> > description: WARNING in __perf_event_overflow
> > affected file: kernel/events/core.c
> > kernel version: 5.15.159
> > kernel commit: 83655231580bc07485a4ac2a6c971c3a175dd27d
>
> That's a really old kernel version. Does it reproduce on something recent?
>

I can confirm that the reproducer also triggers on 6.9
(commit hash a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6)
with the attached kernel config. Is that kernel version recent enough?
If not, please let me know which version you'd like me to test the repro on.

Best,
Marius

Download attachment "config-6.9" of type "application/octet-stream" (259068 bytes)