linux-kernel - Re: bug in tty ldisc and friends

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Message-ID: <20090616101240.GB28204@elte.hu>
Date:	Tue, 16 Jun 2009 12:12:40 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: bug in tty ldisc and friends


* Alan Cox <alan@...rguk.ukuu.org.uk> wrote:

> >  stack-trace entries:                262144 [max: 262144]
> > 
> > stack-trace entries ran out. And it seems like you didnt quadruple 
> > MAX_STACK_TRACE_ENTRIES to 1 million entries.
> 
> I did a while ago but would have been another kernel config.
> 
> > Do we run out of entries right during bootup? Are you 
> > loading/unloading modules a lot perhaps? Could you send your 
> > .config please? (assuming a plain bootup triggers it - that 
> > should make it reproducible to me too)
> 
> On bootup with a totally generic Fedora 11, thinkpad setup with 
> the kernel swapped for current git head. Will send the .config off 
> list and build it with a 1M entry stack trace again.

Nah, dont waste your time on that for now - if it's reproducible on 
simple bootup then i will be able to trigger it once i have your 
config.

Thanks,

	Ingo
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