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From: Lee Revell <rlrevell@joe-job.com>
To: Ingo Oeser <ioe-lkml@rameria.de>
Cc: Stas Sergeev <stsp@aknet.ru>, Andi Kleen <ak@muc.de>,
	Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: Segfault on the i386 enter instruction
Date: Mon, 15 May 2006 18:56:31 -0400	[thread overview]
Message-ID: <1147733792.13948.51.camel@mindpipe> (raw)
In-Reply-To: <200605160049.49384.ioe-lkml@rameria.de>

On Tue, 2006-05-16 at 00:49 +0200, Ingo Oeser wrote:
> Hi Lee,
> 
> On Monday, 15. May 2006 21:56, Lee Revell wrote:
> > Just FYI, this does actually have an important effect on multithreaded
> > programs - glibc will allocate RLIMIT_STACK for each thread stack.  If
> > mlockall() is used this can eat quite a bit of memory.  It's a real
> > world problem for some pro audio apps.
> 
> If it is: pthread_attr_setstacksize() is your friend.
> If you like to use the big hammer: just lower RLIMIT_STACK.
> 
> So no unsolvable real world problem here :-)
> 

Yep, that's exactly what we do in JACK.  POSIX makes it quite explicit
that one should not assume the default thread stack size is sane...

Lee




  reply	other threads:[~2006-05-15 22:56 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-14 17:56 Segfault on the i386 enter instruction Stas Sergeev
2006-05-15  7:40 ` Andi Kleen
2006-05-15 17:15   ` Stas Sergeev
2006-05-15 18:44     ` Andi Kleen
2006-05-15 19:38       ` Stas Sergeev
2006-05-15 19:56         ` Lee Revell
2006-05-15 22:49           ` Ingo Oeser
2006-05-15 22:56             ` Lee Revell [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-05-17  8:20 Chuck Ebbert
2006-05-16  2:29 Chuck Ebbert
2006-05-16  9:32 ` Andi Kleen
2006-05-12 13:16 Tomasz Malesinski
2006-05-12 13:47 ` Denis Vlasenko
2006-05-12 13:50 ` Andi Kleen
2006-05-12 14:03   ` Denis Vlasenko
2006-05-12 15:31   ` Tomasz Malesinski
2006-05-15 11:36     ` Bart Hartgers
2006-05-15 11:46       ` Andi Kleen
2006-05-15 13:36       ` linux-os (Dick Johnson)
2006-05-15 14:19         ` Bart Hartgers
2006-05-12 14:07 ` linux-os (Dick Johnson)
2006-05-12 14:20   ` Denis Vlasenko
2006-05-12 14:42     ` linux-os (Dick Johnson)
2006-05-12 14:53       ` Denis Vlasenko
2006-05-15 20:53   ` Bill Davidsen

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