On 2022-05-18 17:49:50 [-0500], Eric W. Biederman wrote:
> After this set of changes only cgroup_enter_frozen should remain a
> stumbling block for PREEMPT_RT in the ptrace_stop path.
Yes, I can confirm that. I have no systemd-less system at hand which
means I can't boot a kernel without CGROUP support. But after removing
cgroup_{enter|leave}_frozen() in ptrace_stop() I don't see the problems
I saw earlier.
Sebastian
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