[Bug libc/6952] New: malloc is not thread-safe

["axel dot philipp at mtu dot de" <sourceware-bugzilla at sourceware dot org>]

When trying to use Calculix (www.calculix.de) with the multithreaded version of 
Spooles I ran into problems. It turned out that the malloc delivered with 
Novell's SLES10 (glibc 2.4) isn't thread-safe. After linking in Wolfram 
Gloger's ptmalloc3 the program runs properly.
Newer glibc versions up to 2.7 are still based on ptmalloc2, so I tried to use 
ptmalloc2 instead of ptmalloc3 and got the same problems as with glibc2.4.

Testcondition: 8 threads, either 4 dualcore Opterons or 2 quadcore Xeons, an 
average of 10000 mallocs/s.

-- 
           Summary: malloc is not thread-safe
           Product: glibc
           Version: 2.4
            Status: NEW
          Severity: critical
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: axel dot philipp at mtu dot de
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=6952

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