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Date: Thu, 4 Mar 2010 10:58:44 +0800 From: Américo Wang <xiyou.wangcong@...il.com> To: rostedt@...dmis.org Cc: LKML <linux-kernel@...r.kernel.org>, Frederic Weisbecker <fweisbec@...il.com>, Ingo Molnar <mingo@...e.hu> Subject: Re: 2.6.33: ftrace triggers soft lockup On Wed, Mar 3, 2010 at 9:05 PM, Steven Rostedt <rostedt@...dmis.org> wrote: > On Wed, 2010-03-03 at 14:04 +0800, Américo Wang wrote: >> Hi, Steven, Frederic, Ingo, >> >> I am not sure if this is ftrace's fault, but it is ftrace who triggers >> the soft lockup. On my machine, it is pretty easy, just run: >> >> echo function_graph > current_tracer >> >> I found this when 2.6.33-rc7, but forgot to report here. I just tried today's >> Linus tree, it still has this problem. >> >> Attached are the full soft lockup warnings. >> >> Below is my related configs: > > Actually this is not enough for me. Could you send me the full config, > as well as the full dmesg, not just the dump. > Full dmesg: http://pastebin.ca/1822197 Full config: http://pastebin.ca/1822201 Note, I changed some tracing unrelated config after getting that soft lockup, so it would not matter. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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