Re: libpthread to nptl migration : nunmap_chunk() : invalid pointer

[Yann Le Doaré <yledoare at linuxconsole dot org>]

I found my bug : closedir(arg) used with uninitilized arg.

For me, it could also be a non-regression glibc bug, because with glibc
3.4.3 the following code didn't crashed the prog, with 4.1 it does :

#include <dirent.h>

int main(int argc, char** argv)
{
  DIR *dir;
  closedir(dir);
}

Thanks for your response.

Yann Le Doaré.
http://linuxconsole.org

Le dimanche 07 mai 2006 à 10:22 +0200, Petter Reinholdtsen a écrit :
> [Yann Le Doaré]
> > All seems to be ok, exepted a little prog that crashes on this
> > message : nunmap_chunk() : invalid pointer
> > 
> > This prog does not use threads. is it a glibc bug ?
> 
> Probably not.  :)
> 
> Try to use valgrind, <URL:http://valgrind.org/>, to debug it.  It is
> very good at pinpoiting memory use errors in programs.