On Tue, Nov 21, 2023 at 12:09:38AM +1000, Ronald Monthero wrote:
Dear stable maintainers, I like to indicate the oops encountered and request the below patch to be backported to v 5.15. The fix is important to avoid recurring oops in context of rcu detected stalls.
subject: rcu: Avoid tracing a few functions executed in stop machine commit 48f8070f5dd8 Target kernel version v 5.15 Reason for Application: To avoid oops due to rcu_prempt detect stalls on cpus/tasks
Environment and oops context: Issue was observed in my environment on 5.15.193 kernel (arm platform). The patch is helpful to avoid the below oops indicated in [1] and [2]
As the patch does not apply cleanly, we need a working and tested backport so we know to apply the correct version.
Can you please provide that as you've obviously already done this?
thanks,
greg k-h