> On Dec 28, 2022, at 9:39 PM, Joel Fernandes <joel@xxxxxxxxxxxxxxxxx> wrote:
>
> 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.
Please hold off on this particular one. After a 12 hour test, I am seeing some new warnings. Will update the thread after some more debug.
Sorry for the noise,
- Joel
>
> thanks,
>
> - Joel
>
