On Sat, Jul 25, 2020 at 12:38:50PM +0200, Ingo Molnar wrote:
> On a second thought, I think this recent bug might have been the
> culprit:
>
> d136122f5845: ("sched: Fix race against ptrace_freeze_trace()")
>
> Fixed in tip:sched/urgent - this is why it went away in your testing
> perhaps?
Indeed, tip/master with this commit reverted triggers the issue again,
so it appears to be the same problem. But it leaves the question why I
couldn't trigger it with plain v5.8-rc6.
Thanks,
Joerg
