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From: Lei Yang <leiyang@nec-labs.com>
To: Robert Schiele <rschiele@uni-mannheim.de>
Cc: linux-c-programming@vger.kernel.org, linux-gcc@vger.kernel.org
Subject: Re: Segmentation fault from free()
Date: Tue, 24 Aug 2004 17:25:07 -0400	[thread overview]
Message-ID: <412BB233.3020400@nec-labs.com> (raw)
In-Reply-To: <20040824211236.GB25368@schiele.dyndns.org>

Do you mean that something 'free' needs has been destroyed?
Why this wouldn't happen with small files?

THe memory debugger idea is definitely a good one, I'll try that.

Thanks a lot!
Lei

Robert Schiele wrote:
> On Tue, Aug 24, 2004 at 04:34:24PM -0400, Lei Yang wrote:
> 
>>Could anyone please point me out what could possibly be the reason?
> 
> 
> Cannot say something definitely with incomplete source code.
> 
> The bug is not necessarily in the malloc/free pair of this construct.  Likely
> you destroyed the heap structure in earlier memory allocation/deallocation
> operations (e.g. during list processing).  You may want to check your program
> with a memory debugger, e.g. valgrind for i386 platform.
> 
> Robert
> 

  reply	other threads:[~2004-08-24 21:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-08-24 20:34 Segmentation fault from free() Lei Yang
2004-08-24 21:12 ` Robert Schiele
2004-08-24 21:25   ` Lei Yang [this message]
2004-08-24 21:49     ` Robert Schiele
2004-08-25  3:05 ` joy
2004-08-27 20:26 ` Mariano Moreyra

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