linux-kernel - Re: next: rcu_preempt self-detected stall on CPU

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Message-ID: <ef2fbd11-6f37-4484-93c4-6a84e63c3bce@paulmck-laptop>
Date: Wed, 4 Sep 2024 07:23:13 -0700
From: "Paul E. McKenney" <paulmck@...nel.org>
To: Miklos Szeredi <mszeredi@...hat.com>
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>,
	open list <linux-kernel@...r.kernel.org>, rcu <rcu@...r.kernel.org>,
	"open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
	lkft-triage@...ts.linaro.org,
	Linux Regressions <regressions@...ts.linux.dev>,
	yangyun50@...wei.com, Zhen Lei <thunder.leizhen@...wei.com>,
	Anders Roxell <anders.roxell@...aro.org>
Subject: Re: next: rcu_preempt self-detected stall on CPU -
 queued_spin_lock_slowpath

On Wed, Sep 04, 2024 at 04:19:39PM +0200, Miklos Szeredi wrote:
> On Wed, Sep 4, 2024 at 2:06 PM Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
> >
> > The following kernel rcu info generated while running the test case
> > selftests: memfd: run_fuse_test.sh on qemu-arm64 running Linux
> > next-20240902. The qemu-arm64 did not recover.
> >
> > This build was created with kselftest merge configs.
> >
> > Anders bisected this to,
> >   # first bad commit:
> >     [5fb9c98e9d8ddf2abc645e2dcd9eb6703f77fdab]
> >     fuse: add support for no forget requests
> 
> The bad commit was reverted from -next.

A bit "Thank You!" to everyone involved!

							Thanx, Paul