Recent Power changes and stack_trace_save_tsk_reliable?

Michael Ellerman mpe at
Wed Aug 30 10:32:15 AEST 2023

Joe Lawrence <joe.lawrence at> writes:
> Hi ppc-dev list,
> 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.

Hi Joe,

Thanks for the report.

I thought I was running the livepatch tests, but looks like somewhere
along the line my kernel .config lost CONFIG_TEST_LIVEPATCH=m, so I have
been running the test but it just skips. :/

I can reproduce the failure, and will see if I can bisect it more


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