Messages in this thread | | | Date | Fri, 27 Jan 2023 11:37:38 +0100 | From | Joerg Roedel <> | Subject | Re: [Question PATCH kernel] x86/amd/sev/nmi+vc: Fix stack handling (why is this happening?) |
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On Fri, Jan 27, 2023 at 10:08:14AM +0100, Peter Zijlstra wrote: > Welcome to the wonderful shit show that is x86 exceptions :/ > > I thought sev_es_*() is supposed to fix this. Joerg, any clue?
Hmm, no, not yet, the stack-trace doesn't make much sense to me. The sev_es_* function calls in the NMI path are for re-enabling NMI and adjusting the #VC IST stack to allow nested VCs.
Alexey, can you try to get a more stable backtrace? For example by building the kernel with frame pointers?
Regards,
Joerg
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