From owner-freebsd-stable  Thu Apr 26 23:20:35 2001
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References: <NEBBLDHFCEAGCHNCNNLCKEHPECAA.freebsd@wagar.net>
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Date: Thu, 26 Apr 2001 23:20:17 -0700
To: stable@FreeBSD.ORG
From: Doug Hardie <bc979@lafn.org>
Subject: Re: Illegal Instruction in libm - Problem solved....
Cc: Kris Kennaway <kris@obsecurity.org>
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There is an interesting difference in malloc.  It defines the symbol 
free and if you use that symbol in your program then it tends to 
write over some part of your program.  By changing the symbol in my 
program (an int) to a different name, the problem goes away and it 
works properly.  I believe this behavior is new because it didn't 
have this problem in FreeBSD 4.2-RELEASE.


At 0:00 -0700 4/24/01, Doug Hardie wrote:
>At 23:45 -0700 4/23/01, Kris Kennaway wrote:
>>On Mon, Apr 23, 2001 at 11:38:48PM -0700, Doug Hardie wrote:
>>>  I upgraded from 4.2 to 4.3-Release today.  All seemed fine till I ran
>>>  a program that references libc.  It dies with an illegal instruction.
>>>  Recompiling the program made no change.  Here is the gdb where output:
>>
>>You forgot to mention what CPU you are running.
>>
>>Kris
>>
>>Content-Type: application/pgp-signature
>>Content-Disposition: inline
>>
>>Attachment converted: Hard Disk:Untitled 2 (????/----) (000436B3)
>
>CPU: Pentium II/Pentium II Xeon/Celeron (350.80-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0x652  Stepping = 2
>
>Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PA
>T,PSE36,MMX,FXSR>
>--
>-- Doug
>
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-- 
-- Doug

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