Hi!
This should be show stopper, actually:
FYI, This is not a show stopper but worth reporting.
NOTE: Following kernel warning notices on stable rc 4.19.282-rc1 from the previous releases 4.19.279-rc1 noticed on arm64, i386 and x86_64. After this kernel warning the system is still stable and up and running.
This kernel is built with kselftest ftrace merge configs with all required Kconfigs.
[ 0.000000] Linux version 4.19.279-rc1 (tuxmake@tuxmake) (gcc version 11.3.0 (Debian 11.3.0-11)) #1 SMP @1679324856 ... [ 0.145911] ftrace: allocating 48590 entries in 190 pages ...
[ 2.880223] WARNING: CPU: 0 PID: 0 at include/trace/events/lock.h:13 lock_acquire+0x142/0x150 [ 2.881454] WARNING: CPU: 1 PID: 0 at include/trace/events/lock.h:58 lock_release+0x1af/0x280
This indicates locking problem somewhere in cpuidle / ftrace.
I skimmed the patches, and I do not see anything obvious there. Is there chance to do a bisection?
Best regards, Pavel