Re: [PATCH v10 6/9] kselftests: cgroup: add freezer controller self-tests

From: Roman Gushchin
Date: Thu Jul 18 2019 - 14:19:25 EST


On Wed, Jul 17, 2019 at 02:26:49PM +0530, Naresh Kamboju wrote:
> Hi Roman,
>
> > The interaction between ptrace and freezer is complicated
> > (as ptrace in general),so there are known cases when spurious
> > cgroup transitions (frozen <-> non frozen <-> frozen ) can happen.
>
> When test ran for 8 times it got failed 5 times.
> I have noticed intermittent failure on x86_64, arm64 hikey device and
> qemu_arm64.

Oh, it wasn't nearly as bad when I ran it. I'll take a look.

>
> >
> > Does it create any difficulties? If so, I'll send a diff to ignore
> > the result of this test for now.
>
> No difficulties. I will mark this test case as known failure.

Sure.

Thanks!