Messages in this thread | | | From | Laura Nao <> | Subject | Re: [patch 0/2] x86/cpu/amd: Fixup the topology rework fallout | Date | Thu, 11 Apr 2024 13:27:43 +0200 |
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Hi Thomas,
On 4/10/24 21:45, Thomas Gleixner wrote: > Testing at Collabora unearthed two issues in the new AMD topology parser > code: > > 1) The CPUID 0x80000008 parser initializes the wrong topology domain > level. > > 2) The NODEID_MSR parser uses bitfields in a union wrongly which results > in reading out the wrong value and finally in a division by zero. > > Many thanks to Laura for helping to debug this issue. > > tglx > >
Thanks a lot for investigating and solving the issue!
I confirm that with this series applied the kernel boots correctly on all three AMD Stoney Ridge Chromebooks that were affected by the regression.
I tested the patches on top of c749ce39 (culprit commit identified by the bisection) - reference test job: https://lava.collabora.dev/scheduler/job/13339645
The series doesn't apply directly to next, but I manually applied the changes on top of next-20240411 and can confirm the kernel boots correctly with this revision too - reference test job: https://lava.collabora.dev/scheduler/job/13340321
The regression was originally reported by KernelCI, so:
Reported-by: "kernelci.org bot" <bot@kernelci.org> Tested-by: Laura Nao <laura.nao@collabora.com>
I'll make sure to update the Regzbot tag when the series is merged.
Best,
Laura
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