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From: Joel Fernandes <joel@joelfernandes.org>
To: stable@vger.kernel.org
Cc: paulmck@kernel.org, rcu@vger.kernel.org
Subject: Please apply to v5.10 stable: 4d60b475f858 ("rcu: Prevent lockdep-RCU splats on lock acquisition/release")
Date: Thu, 29 Dec 2022 02:39:06 +0000	[thread overview]
Message-ID: <Y6z9ygSGmPNz5hfd@google.com> (raw)

Hello,
Please apply to v5.10 stable: 4d60b475f858 ("rcu: Prevent lockdep-RCU splats
on lock acquisition/release"). The patch made it in v5.11

Without it, I get the follow splat on TREE05 rcutorture testing:

[    1.253678] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.10.162-rc1+ #6
[    1.253678] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014
[    1.253678] Call Trace:
[    1.253678]
[    1.253678] =============================
[    1.253678] WARNING: suspicious RCU usage
[    1.253678] 5.10.162-rc1+ #6 Not tainted
[    1.253678] -----------------------------
[    1.253678] kernel/kprobes.c:300 RCU-list traversed in non-reader section!!

I tested with the patch and the warning is gone.

thanks,

 - Joel


             reply	other threads:[~2022-12-29  2:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-29  2:39 Joel Fernandes [this message]
2022-12-29 16:10 ` Please apply to v5.10 stable: 4d60b475f858 ("rcu: Prevent lockdep-RCU splats on lock acquisition/release") Joel Fernandes
2022-12-30  1:02   ` Joel Fernandes
2022-12-30  4:43     ` Joel Fernandes

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