From: Ingo Molnar <mingo@elte.hu>
To: Clark Williams <williams@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: -rt x86_64 fix for latency tracing
Date: Fri, 2 Jun 2006 21:47:31 +0200 [thread overview]
Message-ID: <20060602194731.GA1104@elte.hu> (raw)
In-Reply-To: <4480938E.3060005@redhat.com>
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-----
prev parent reply other threads:[~2006-06-02 19:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-02 19:37 -rt x86_64 fix for latency tracing Clark Williams
2006-06-02 19:47 ` Ingo Molnar [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060602194731.GA1104@elte.hu \
--to=mingo@elte.hu \
--cc=linux-kernel@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=williams@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.