* -rt x86_64 fix for latency tracing
@ 2006-06-02 19:37 Clark Williams
2006-06-02 19:47 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Clark Williams @ 2006-06-02 19:37 UTC (permalink / raw)
To: Ingo Molnar, Steven Rostedt; +Cc: LKML
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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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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: -rt x86_64 fix for latency tracing
2006-06-02 19:37 -rt x86_64 fix for latency tracing Clark Williams
@ 2006-06-02 19:47 ` Ingo Molnar
0 siblings, 0 replies; 2+ messages in thread
From: Ingo Molnar @ 2006-06-02 19:47 UTC (permalink / raw)
To: Clark Williams; +Cc: Steven Rostedt, LKML
good catch!
Ingo
* Clark Williams <williams@redhat.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> 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
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.3 (GNU/Linux)
> Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
>
> iD8DBQFEgJOOHyuj/+TTEp0RAhkEAKDWQu4cvGBvCQi1UyQcDalbR6SPZACglMRH
> rVy1tTWHbatDx37pXHAXs1s=
> =5Qi9
> -----END PGP SIGNATURE-----
^ permalink raw reply [flat|nested] 2+ messages in thread
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2006-06-02 19:37 -rt x86_64 fix for latency tracing Clark Williams
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