From: Steven Rostedt <srostedt@redhat.com>
To: Bruce Duncan <bwduncan@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
Subject: Re: [git pull] ftrace for v2.6.27
Date: Wed, 13 Aug 2008 11:11:39 -0400 [thread overview]
Message-ID: <48A2F9AB.8000608@redhat.com> (raw)
In-Reply-To: <200808130248.58216.bwduncan@gmail.com>
Bruce Duncan wrote:
> Hi Ingo, Steven, everyone,
>
> [ Please CC me in replies ]
>
> I have just tracked down a regression in 2.6.27-rc2 wrt 2.6.26. Commit
> 77a2b37d227483fe52aead242652aee406c25bf0 (ftrace: startup tester on dynamic
> tracing.) causes my laptop to fail to resume from S3 (it simply reboots about
> a second after the resume starts and the display never shows anything).
>
> The patch doesn't revert with patch -R (I don't know if there's a cleverer way
> to ask git to revert it), but the problem goes away if I turn off
> CONFIG_DYNAMIC_FTRACE.
>
> The commit and bisect log are attached. Please can you help me to debug this?
>
>
>
I found that I have a box that displays this bug. Without FTRACE it
suspends and resumes fine. With FTRACE enabled, it does not.
I'll be actively debugging it now. (unfortunately, as with all new
laptops, I don't have a serial for it).
-- Steve
next prev parent reply other threads:[~2008-08-13 15:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-14 14:22 [git pull] ftrace for v2.6.27 Ingo Molnar
2008-08-13 1:48 ` Bruce Duncan
2008-08-13 7:19 ` Ingo Molnar
2008-08-13 15:11 ` Steven Rostedt [this message]
2008-08-13 15:18 ` Ingo Molnar
2008-08-13 19:53 ` Andi Kleen
2008-08-13 17:15 ` Steven Rostedt
2008-08-13 18:08 ` Bruce Duncan
2008-08-15 9:29 ` Ingo Molnar
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