From: Ingo Molnar <mingo@elte.hu>
To: Jason Baron <jbaron@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
masami.hiramatsu.pt@hitachi.com
Subject: Re: [PATCH][GIT PULL] tracing: Fix compile issue for trace_sched_wakeup.c
Date: Thu, 21 Oct 2010 16:43:46 +0200 [thread overview]
Message-ID: <20101021144346.GB10694@elte.hu> (raw)
In-Reply-To: <20101021135521.GB2920@redhat.com>
* Jason Baron <jbaron@redhat.com> wrote:
> > > Looks like this code had jump labels enabled. Do you have a dump where they
> > > are not enabled?
> >
> > No. Good find - and the timeline agrees too, these crashes started triggering
> > when i pulled jump labels from you.
> >
> > Thanks,
> >
> > Ingo
>
> indeed. I can re-produce reliably as well on x86...hmmm, I have done stress
> testing where I basically just enable/disable all the tracepoints in a tight loop
> and never saw this...but I mostly have been testing on x86_64.
Dont worry about that too much - there will always be bugs that can only be found in
some special way. Good thing we had the self-tests. (and even those didnt reliably
trigger it for me)
Thanks,
Ingo
next prev parent reply other threads:[~2010-10-21 14:47 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-19 17:11 Steven Rostedt
2010-10-19 18:41 ` Ingo Molnar
2010-10-20 15:40 ` Ingo Molnar
2010-10-20 16:37 ` Steven Rostedt
2010-10-20 18:40 ` Ingo Molnar
2010-10-20 16:43 ` Jason Baron
2010-10-20 18:33 ` Ingo Molnar
2010-10-21 11:09 ` Ingo Molnar
2010-10-22 17:58 ` Jason Baron
2010-10-22 18:24 ` Ingo Molnar
2010-10-22 18:39 ` Jason Baron
2010-10-23 20:02 ` Ingo Molnar
2010-10-24 0:53 ` Steven Rostedt
2010-10-24 11:25 ` Ingo Molnar
2010-10-25 8:59 ` Ingo Molnar
2010-10-25 9:30 ` Ingo Molnar
2010-10-25 11:45 ` Ingo Molnar
2010-10-25 12:10 ` Ingo Molnar
2010-10-25 12:18 ` Peter Zijlstra
2010-10-25 12:32 ` Ingo Molnar
2010-10-25 15:47 ` Peter Zijlstra
2010-10-25 16:07 ` Peter Zijlstra
2010-10-25 17:25 ` Ingo Molnar
2010-10-25 17:32 ` Ingo Molnar
2010-10-25 17:45 ` Peter Zijlstra
2010-10-25 17:52 ` Jason Baron
2010-10-30 10:42 ` [tip:perf/urgent] jump label: Add work around to i386 gcc asm goto bug tip-bot for Steven Rostedt
2010-10-25 15:55 ` [PATCH][GIT PULL] tracing: Fix compile issue for trace_sched_wakeup.c Jason Baron
2010-10-25 16:09 ` Peter Zijlstra
2010-10-22 21:42 ` Jason Baron
2010-10-23 4:41 ` Steven Rostedt
2010-10-21 2:58 ` Masami Hiramatsu
2010-10-21 7:22 ` Peter Zijlstra
2010-10-21 11:01 ` Steven Rostedt
2010-10-21 11:03 ` Peter Zijlstra
2010-10-21 12:45 ` Steven Rostedt
2010-10-21 13:50 ` Jason Baron
2010-10-22 4:56 ` Masami Hiramatsu
2010-10-21 14:00 ` Jason Baron
2010-10-21 11:14 ` Steven Rostedt
2010-10-21 11:26 ` Ingo Molnar
2010-10-21 13:55 ` Jason Baron
2010-10-21 14:43 ` Ingo Molnar [this message]
2010-10-22 1:44 ` Jason Baron
2010-10-22 8:14 ` Peter Zijlstra
2010-10-22 14:13 ` Jason Baron
2010-10-22 14:23 ` Peter Zijlstra
2010-10-22 14:36 ` Steven Rostedt
2010-10-22 14:36 ` Jason Baron
2010-10-22 8:16 ` Tejun Heo
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