On Dec 28, 2022, at 9:39 PM, Joel Fernandes joel@joelfernandes.org 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