nginx 1.0.5 on redhat6.0 appear a serious bug

[lys0212]

Today i update nginx 1.0.0 to 1.0.5 on redhat 6.0 ,after 3 hours ,nginx
don't work,but the nginx process still exist!
The follow are from /var/log/message 
ul 22 10:46:18 localhost xinetd[31385]: EXIT: nrpe status=0 pid=7404
duration=1(sec)
Jul 22 10:46:26 localhost kernel: nginx[24053]: segfault at 7fff32363148
ip 00007fce2e08ffa7 sp 00007fff0a2dafc0 error 4 in libunwin
d.so.7.0.0[7fce2e085000+f000]
Jul 22 10:46:31 localhost abrt[7433]: saved core dump of pid 24053
(/web/software/nginx/sbin/nginx) to /var/spool/abrt/ccpp-13113027
87-24053.new/coredump (271093760 bytes)
Jul 22 10:46:31 localhost abrtd: Directory 'ccpp-1311302787-24053'
creation detected
Jul 22 10:46:31 localhost abrtd: Executable
'/web/software/nginx/sbin/nginx' doesn't belong to any package

The follow are  from nginx error_log
PROFILE: interrupts/evictions/bytes = 0/0/64
2011/07/22 10:49:18 [alert] 21864#0: worker process 24056 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 24055 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 24051 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 24057 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 31151 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 3613 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 7436 exited on
signal 9
2011/07/22 10:49:18 [alert] 21864#0: worker process 2396 exited on
signal 9
PROFILE: interrupts/evictions/bytes = 0/0/64
2011/07/22 11:15:23 [alert] 7982#0: worker process 7987 exited on signal
11 (core dumped)
PROFILE: interrupts/evictions/bytes = 0/0/64
PROFILE: interrupts/evictions/bytes = 0/0/64
PROFILE: interrupts/evictions/bytes = 705/33/95080
PROFILE: interrupts/evictions/bytes = 684/24/93656
PROFILE: interrupts/evictions/bytes = 902/44/113792
PROFILE: interrupts/evictions/bytes = 556/28/77456
PROFILE: interrupts/evictions/bytes = 797/27/96920
PROFILE: interrupts/evictions/bytes = 574/21/78488
PROFILE: interrupts/evictions/bytes = 356/6/50816
PROFILE: interrupts/evictions/bytes = 1/0/208

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,212790,212790#msg-212790