Recent Power changes and stack_trace_save_tsk_reliable?

Michael Ellerman mpe at
Thu Sep 21 22:26:22 AEST 2023

Petr Mladek <pmladek at> writes:
> On Wed 2023-08-30 17:47:35, Joe Lawrence wrote:
>> On 8/30/23 02:37, Michael Ellerman wrote:
>> > Michael Ellerman <mpe at> writes:
>> >> Joe Lawrence <joe.lawrence at> writes:
>> >>> We noticed that our kpatch integration tests started failing on ppc64le
>> >>> when targeting the upstream v6.4 kernel, and then confirmed that the
>> >>> in-tree livepatching kselftests similarly fail, too.  From the kselftest
>> >>> results, it appears that livepatch transitions are no longer completing.
>> > 
>> > The diff below fixes it for me, can you test that on your setup?
>> > 
>> Thanks for the fast triage of this one.  The proposed fix works well on
>> our setup.  I have yet to try the kpatch integration tests with this,
>> but I can verify that all of the kernel livepatching kselftests now
>> happily run.
> Have this been somehow handled, please? I do not see the proposed
> change in linux-next as of now.

I thought I was waiting for Joe to run the kpatch integration tests, but
in hindsight maybe he was hinting that someone else should run them (ie. me) ;)

Patch incoming.


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