On Tue, 3 Sep 2024 14:47:42 +0200
Tomas Glozar [off-list ref] wrote:

I suggest using the workaround suggested in
https://lore.kernel.org/linux-trace-kernel/20240823125426.404f2705@gandalf.local.home (local)
for the time being. Together with the patch that adds locks around
stopping the threads
(https://patchwork.kernel.org/project/linux-trace-kernel/patch/20240823102816.5e55753b@gandalf.local.home/),
this should prevent the kernel panic at least until we have a solution
for the race itself.

When running my tests, the second one would end up deadlocking and
triggering lockdep. I found a way to do basically the same thing with a
cpumask and no added locking. I'm currently testing it and will be sending
out a patch later today (if it passes the tests).

-- Steve