Re: -rt x86_64 fix for latency tracing

[Ingo Molnar <mingo@elte.hu>]

good catch!

	Ingo

* Clark Williams <williams@redhat.com> wrote:

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> Hash: SHA1
> 
> Ingo/Steve,
> 
> The included patch fixes a bug that causes a segfault in the init
> thread when latency tracing is enabled on x86_64 kernels. Not sure if
> it's completely correct, but it gets me past my segfault and lets me
> complete booting.
> 
> diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
> index 066497a..b124409 100644
> - --- a/arch/x86_64/kernel/entry.S
> +++ b/arch/x86_64/kernel/entry.S
> @@ -1089,7 +1089,7 @@ ENTRY(mcount)
>  
>         mov 0x0(%rbp),%rax
>         mov 0x8(%rbp),%rdi
> - -       mov 0x8(%rax),%rsi
> +       mov 0x10(%rax),%rsi
>  
>         call   __trace
> 
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> iD8DBQFEgJOOHyuj/+TTEp0RAhkEAKDWQu4cvGBvCQi1UyQcDalbR6SPZACglMRH
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