From: Clark Williams <williams@redhat.com>
To: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: -rt x86_64 fix for latency tracing
Date: Fri, 02 Jun 2006 14:37:50 -0500 [thread overview]
Message-ID: <4480938E.3060005@redhat.com> (raw)
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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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next reply other threads:[~2006-06-02 19:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-02 19:37 Clark Williams [this message]
2006-06-02 19:47 ` -rt x86_64 fix for latency tracing Ingo Molnar
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