Subject: lib/26370: pthread_create fails in -current
To: None <gnats-bugs@gnats.NetBSD.org>
From: Martin Husemann <martin@duskware.de>
List: netbsd-bugs
Date: 07/19/2004 21:50:05
>Number: 26370
>Category: lib
>Synopsis: pthread_create fails in -current
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: lib-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Jul 19 19:52:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator: Martin Husemann
>Release: NetBSD 2.0G
>Organization:
>Environment:
System: NetBSD night-owl.duskware.de 2.0G NetBSD 2.0G (REVEL) #16: Mon Jul 19 17:24:26 CEST 2004 martin@night-owl.duskware.de:/usr/src/sys/arch/i386/compile/REVEL i386
Architecture: i386
Machine: i386
>Description:
Running the following test program (from pkgsrc/devel/glib2's configure) dumps
core on -current:
--8<--
#include <pthread.h>
int check_me = 0;
void* func(void* data) {check_me = 42; return &check_me;}
int main()
{ pthread_t t;
void *ret;
pthread_create (&t, 0, func, 0);
pthread_join (t, &ret);
exit (check_me != 42 || ret != &check_me);
}
-->8--
gdb shows the main thread in pthread_create and the new LWP in
pthread__sched_idle():
Starting program: /tmp/conftest
Program received signal SIGSEGV, Segmentation fault.
0x48067132 in pthread__sched_idle () from /usr/lib/libpthread.so.0
(gdb) bt
#0 0x48067132 in pthread__sched_idle () from /usr/lib/libpthread.so.0
#1 0x480692c3 in pthread_init () from /usr/lib/libpthread.so.0
#2 0x48069781 in pthread_create () from /usr/lib/libpthread.so.0
#3 0x08048852 in main () at conftest.c:10
#4 0x080485c2 in ___start ()
>How-To-Repeat:
compile and run above program on -current.
>Fix:
n/a
>Release-Note:
>Audit-Trail:
>Unformatted: