From: "Frédéric Weisbecker" <fweisbec@gmail.com>
To: "Steven Rostedt" <rostedt@goodmis.org>
Cc: "Ingo Molnar" <mingo@elte.hu>,
"Linux Kernel" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] tracing/ftrace: use preempt_enable_no_resched_notrace in ring_buffer_time_stamp()
Date: Tue, 16 Dec 2008 22:55:34 +0100 [thread overview]
Message-ID: <c62985530812161355l11edbb9cg6dd4e7e4291ab7b@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.1.10.0812161642530.25356@gandalf.stny.rr.com>
2008/12/16 Steven Rostedt <rostedt@goodmis.org>:
>
>
> On Tue, 16 Dec 2008, Fr?d?ric Weisbecker wrote:
>>
>> The hard reboots I've seen are related to x86-64 while
>> disabling/reenabling a CPU through /sys/device/system/cpu
>> No tracer was enabled at these times (the problem still remains with
>> latest updates on -tip for half an hour).
>
> Do you have STACK_TRACER enabled?
>
> -- Steve
>
You were right. I've just built a kernel without STACK_TRACER and the
problem disappears...
next prev parent reply other threads:[~2008-12-16 21:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-16 21:08 Frederic Weisbecker
2008-12-16 21:20 ` Ingo Molnar
2008-12-16 21:39 ` Frédéric Weisbecker
2008-12-16 21:43 ` Steven Rostedt
2008-12-16 21:48 ` Frédéric Weisbecker
2008-12-16 21:55 ` Frédéric Weisbecker [this message]
2008-12-16 21:59 ` Ingo Molnar
2008-12-16 22:53 ` Steven Rostedt
2008-12-16 21:50 ` Ingo Molnar
2008-12-16 22:38 ` Frédéric Weisbecker
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