Mail Archives: cygwin/2001/04/30/13:38:19
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Mon, 30 Apr 2001 13:13:09 -0400
Date: Mon, 30 Apr 2001 13:13:09 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: Cygwin Mailing List <cygwin AT cygwin DOT com>
Cc: thunder AT ngforever DOT de
Subject: Re: cygwin programs: realloc() segfault with library v1.3.1
Message-ID: <20010430131309 DOT F30741 AT redhat DOT com>
Reply-To: cygwin AT cygwin DOT com
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thunder AT ngforever DOT de
References: <001001c0d192$1cb70240$0101a8c0 AT luckynet DOT adm>
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In-Reply-To: <001001c0d192$1cb70240$0101a8c0 AT luckynet DOT adm>; from thunder AT ngforever DOT de on Mon, Apr 30, 2001 at 09:21:33AM -0700
On Mon, Apr 30, 2001 at 09:21:33AM -0700, Thunder from the hill wrote:
>I hate this mailer! I think I should better use another one.
>
>Again, this is the failing source code. Whenever realloc() is used in
>sendfile(), the MicroHTTPD segfaults.
I'm sorry but this test case is way too complicated to debug.
The only advice I can give is that it is unlikely that there is a problem
with realloc. SIGSEGVs are usually an indication of some sort of memory
corruption like overrunning a 20 byte array with 24 bytes of info.
realloc SIGSEGVs can come about as a result of attempts to realloc a block
that was not malloced or at least not malloced using a malloc that is
associated with realloc.
If you can pare this down into twenty lines or so, then maybe someone would
be willing to take a look at it. I don't think that anyone has the time
to attempt to debug a program of this size, however.
Sorry.
cgf
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