Re: [PATCH 1/2] alpha/ptrace: Record and handle the absence of switch_stack

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On Sun, Jun 20, 2021 at 7:01 PM Michael Schmitz <schmitzmic@xxxxxxxxx> wrote:
>
> instrumenting get_reg on m68k and using a similar patch to yours to warn
> when unsaved registers are accessed on the switch stack, I get a hit
> from getegid and getegid32, just by running a simple ptrace on ls.
>
> Going to wack those two moles now ...

I don't see what's going on. Those system calls don't use the register
state, afaik. What's the call chain, exactly?

           Linus



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