From: Steven Rostedt <rostedt@goodmis.org>
To: Li Zefan <lizf@cn.fujitsu.com>, Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: "Frederic Weisbecker" <fweisbec@gmail.com>,
"Américo Wang" <xiyou.wangcong@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
"Ingo Molnar" <mingo@elte.hu>
Subject: Re: 2.6.33: ftrace triggers soft lockup
Date: Fri, 12 Mar 2010 21:07:29 -0500 [thread overview]
Message-ID: <1268446049.4471.787.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <4B95C2AF.7010508@cn.fujitsu.com>
On Tue, 2010-03-09 at 11:38 +0800, Li Zefan wrote:
> The segfault is from userspace. This is a segfault I just got:
>
> ftrace_stack_ma[14989]: segfault at fe2e ip 00000000004474c0 sp 00007fffb97e38c0 error 4 in bash[400000+d1000]
Li and Lai,
Thanks a lot for reporting all this, and writing the ftrace_stress_test.
I've fixed all the bugs that it has reported (to my knowledge) and after
a little more testing I will soon be sending a patch series out.
Just wanted to say thanks again, your efforts have helped out
tremendously!
Americo,
I still do not know why the function graph tracer is making your system
unusable. I'll look more into that when I get a chance. So far, I have
not had any issues on any of my boxes.
-- Steve
next prev parent reply other threads:[~2010-03-13 2:07 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 6:04 Américo Wang
2010-03-03 13:05 ` Steven Rostedt
2010-03-04 2:58 ` Américo Wang
2010-03-04 1:33 ` Li Zefan
2010-03-04 1:46 ` Frederic Weisbecker
2010-03-04 3:01 ` Américo Wang
2010-03-04 3:18 ` Steven Rostedt
2010-03-04 4:06 ` Frederic Weisbecker
2010-03-04 5:10 ` Américo Wang
2010-03-04 5:18 ` Frederic Weisbecker
2010-03-04 13:54 ` Steven Rostedt
2010-03-05 4:14 ` Américo Wang
2010-03-05 7:16 ` Américo Wang
2010-03-05 15:06 ` Steven Rostedt
2010-03-05 17:16 ` Frederic Weisbecker
2010-03-05 18:35 ` Steven Rostedt
2010-03-05 18:43 ` Frederic Weisbecker
2010-03-05 19:07 ` Steven Rostedt
2010-03-08 7:32 ` Li Zefan
2010-03-08 15:15 ` Steven Rostedt
2010-03-09 2:11 ` Li Zefan
2010-03-09 2:23 ` Steven Rostedt
2010-03-09 3:38 ` Li Zefan
2010-03-12 19:20 ` Steven Rostedt
2010-03-12 21:38 ` Steven Rostedt
2010-03-13 2:07 ` Steven Rostedt [this message]
2010-03-13 5:37 ` Américo Wang
2010-03-13 5:51 ` Steven Rostedt
2010-03-14 16:55 ` Steven Rostedt
2010-03-13 17:56 ` Steven Rostedt
2010-03-15 1:46 ` Li Zefan
2010-03-15 14:39 ` Steven Rostedt
2010-03-15 16:16 ` Steven Rostedt
2010-03-08 2:31 ` Américo Wang
2010-03-09 2:40 ` Américo Wang
2010-03-09 2:51 ` Steven Rostedt
2010-03-09 5:06 ` Américo Wang
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