[6.0-rc1] Kernel crash while running MCE tests

[Ganesh]

On 8/22/22 11:19, Michael Ellerman wrote:

>>> So I guess the compiler has decided not to inline it (why?!), and it is
>>> not marked noinstr, so it gets KASAN instrumentation which crashes in
>>> real mode.
>>>
>>> We'll have to make sure everything get_pseries_errorlog() is either
>>> forced inline, or marked noinstr.
>> Making the following functions always_inline and noinstr is fixing the issue.
>> __always_inline pseries_errorlog_id()
>> __always_inline pseries_errorlog_length()
>> __always_inline do_enter_rtas()
>> __always_inline srr_regs_clobbered()
>> noinstr va_rtas_call_unlocked()
> Why do we need it? Because of fwnmi_release_errinfo()?

Yes.

>> Shall I post the patch?
> Yeah.
>
> cheers
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