On 9/21/23 08:26, Michael Ellerman wrote:

Petr Mladek [off-list ref] writes:

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On Wed 2023-08-30 17:47:35, Joe Lawrence wrote:

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On 8/30/23 02:37, Michael Ellerman wrote:

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Michael Ellerman [off-list ref] writes:

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Joe Lawrence [off-list ref] writes:

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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.

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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.

Ah sorry for the confusion.  kpatch integration tests - that's on me.
If kernel stack unwinding is fixed, I'm pretty confident they will
execute.  I will kick them off today, but don't let that hold up the
kernel patches.

Thanks,
-- 
Joe