From: Sven Schnelle <svens@linux.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>,
Ingo Molnar <mingo@redhat.com>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
K Prateek Nayak <kprateek.nayak@amd.com>,
Mark Brown <broonie@kernel.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
John Stultz <jstultz@google.com>,
Vineeth Pillai <vineethrp@google.com>,
Joel Fernandes <joelagnelf@nvidia.com>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-next@vger.kernel.org, "Aaron Lu" <ziqianlu@bytedance.com>
Subject: Re: linux-next crashes in scheduler on s390
Date: Wed, 10 Jun 2026 15:03:26 +0200 [thread overview]
Message-ID: <yt9dmrx2wns1.fsf@linux.ibm.com> (raw)
In-Reply-To: <17e75ff4-cf90-4772-9965-92a7235ca806-agordeev@linux.ibm.com>
Alexander Gordeev <agordeev@linux.ibm.com> writes:
> Hi All,
>
> Since about June 1st we're getting strace test suite (make -j$(nproc) check)
> crashes on s390 in linux-next. Those are pretty easy to reproduce, but I
> have not been able to nail it down to the particular commit/merge.
>
> I am going to bisect it, but since we are approaching v7.1 release, any
> hint would be greatly appreciated!
> [..]
I bisected it to
https://lore.kernel.org/all/20260511120627.944705718@infradead.org/
("[PATCH v2 08/10] sched/fair: Add newidle balance to pick_task_fair()")
Adding the patch proposed in
https://lore.kernel.org/all/20260603095108.GA1684319@bytedance.com/
fixes the issue for me.
To reproduce, running the strace test suite seems enough. If required, I
can try to figure out the exact test that crashes the kernel.
prev parent reply other threads:[~2026-06-10 13:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-10 12:47 linux-next crashes in scheduler on s390 Alexander Gordeev
2026-06-10 13:03 ` Sven Schnelle [this message]
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