On Fri, 31 Jul 2026 21:50:52 +0100, Mark Brown wrote:
> Commit 3e360ef0c0a1f ("kselftest/arm64: Corrupt P0 in the irritator when
> testing SSVE") added corruption of P0 to the sve-test case in order to
> ensure that the predicate registers were covered as part of the
> corruption. On SME only systems this results in an illegal instruction
> since signal handlers are run out of streaming mode and the predicate
> registers do not exist out of streaming mode without SVE. Switch to
> entering and exiting streaming mode in the irritator, this will reset
> all relevant registers to 0 if they somehow weren't already by the
> signal entry.
>
> [...]
Applied to arm64 (for-next/selftests), thanks!
[1/1] kselftest/arm64: Don't write to P0 in irritator on SME only systems
https://git.kernel.org/arm64/c/2b989c411ab9
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
