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Re: fopen/malloc MT bug


From: Ulrich Drepper
Subject: Re: fopen/malloc MT bug
Date: 18 Apr 2001 13:13:44 -0700
User-agent: Gnus/5.0807 (Gnus v5.8.7) XEmacs/21.2 (Thelxepeia)

Wojciech Piechowski <address@hidden> writes:

> It may be very difficult to write a test program to show the problem
> without mcheck, so I used it. Is there anyone who can authoritatively say
> or show that mcheck is not thread-safe() ? (authors here :-?) If yes, then
> why I no longer have my memory clobbered even without mcheck?

Just look at the source code.  There is a lot of changing of global
variables without any locking.  Don't use mcheck in multi-threaded
applications.

-- 
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Ulrich Drepper  \    ,-------------------'   \  Sunnyvale, CA 94089 USA
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