From: Blindauer Emmanuel <manu@agat.net>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: what happened with thread, from 2.2 to 2.4 ?!
Date: Sun, 2 Dec 2001 15:33:43 +0100 [thread overview]
Message-ID: <01120215334302.00742@extasia> (raw)
Hi
what happenned with thread from 2.2 to 2.4?
I have some problems with threaded programs, working under 2.2 and no more
under 2.4
The test program is short:
----
#include <stdlib.h>
void main() {
char *t="1.0";
double d=0;
d=strtod(t,(char **)NULL);
}
---
this program compiled with "gcc -g -lpthread test.c" has strange behaviour.
The problem only appear using gdb to see the value of d
In most case, the value returned by strtod under a 2.4 kernel is nan.
I say most, because some 2.4 kernels don't fail other this line.
I have done some test with differents distributions, and so differents
version of kernel, gcc, gdb and libc.
http://manu.agat.net/bug.html
When it was possible, for the computer with the bug, under an 2.4 kernel,
I've recompiled a 2.2.20, and the bug has disappeared!
Does someone have an idea about that ?
next reply other threads:[~2001-12-02 14:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-02 14:33 Blindauer Emmanuel [this message]
2001-12-02 16:31 ` what happened with thread, from 2.2 to 2.4 ?! David Relson
2001-12-04 18:37 ` Gerold Jury
-- strict thread matches above, loose matches on Subject: below --
2001-12-02 15:42 Manfred Spraul
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