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Date: Wed, 2 Nov 2011 19:30:49 +0100 (CET) From: Thomas Gleixner <tglx@...utronix.de> To: Simon Kirby <sim@...tway.ca> cc: David Miller <davem@...emloft.net>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Linus Torvalds <torvalds@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Dave Jones <davej@...hat.com>, Martin Schwidefsky <schwidefsky@...ibm.com>, Ingo Molnar <mingo@...e.hu>, Network Development <netdev@...r.kernel.org> Subject: Re: Linux 3.1-rc9 On Wed, 2 Nov 2011, Simon Kirby wrote: > On Wed, Nov 02, 2011 at 05:40:53PM +0100, Thomas Gleixner wrote: > Ok, I'll try this. Hmm, all CPUs typically try to grab the lock fairly > quickly after it happens, which could make it difficult to cat the file. > I'll try ftrace_dump(DUMP_ALL); in there instead. Eric has spotted the source of trouble already. Can you try his patch first? If it still persists, we still can resort to hardcore tracing :) Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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