Core dump while calling external commands using system()

[Sachin]

All,

I have a perl script using system() to call external Shell and Perl
scripts.

The Scripts runs good most of the times and created core dump with
return code of "returned 0x8b: caught signal 11 with coredump"

It is difficult to re-create the core; so I am running a never ending
loop to get the failues. The last core dump I got was only after 1200
successful runs.

I am using listed perl and associated modules:
Perl :5.6.1
DBI :1.43
DBD :1:15
OS : Solaris 2.8, (108528-23)

Action Taken : I have installed a new version of perl (5.8.5) with DBI
and DBD still have same issues.
.....
Evry time I run gdb the last few lines are :
Loaded symbols for /lib/libkstat.so.1
Reading symbols from /lib/libthread.so.1...done.
Loaded symbols for /lib/libthread.so.1
#0 0xfefaa064 in _disp () from /lib/libthread.so.1
(gdb)


---------------
$ mdb core.run_process.pl.18398
Loading modules: [ ]

$r

%g0 = 0x00000000 %l0 = 0xfefd7844
libthread.so.1`_dqactmap
%g1 = 0x00000020 %l1 = 0x0000000c
%g2 = 0x00000000 %l2 = 0xfefd7850
libthread.so.1`_dqactmap+0xc
%g3 = 0x00000000 %l3 = 0x00000003
%g4 = 0x00000000 %l4 = 0x0000001f
%g5 = 0x00000000 %l5 = 0x00000000
%g6 = 0x00000000 %l6 = 0x00000000
%g7 = 0xfef75d98 %l7 = 0xfefccd38
libthread.so.1`_nrunnable

%o0 = 0x00000020 %i0 = 0x00000000
%o1 = 0x00000000 %i1 = 0xfefccd3c
libthread.so.1`_maxpriq
%o2 = 0x00000000 %i2 = 0xfefcc000
%o3 = 0x000003f8 %i3 = 0xfefd8d04
libthread.so.1`_dispq
%o4 = 0x00008000 %i4 = 0x00000060
%o5 = 0x0000007f %i5 = 0x00000000
%o6 = 0xfef75b48 %i6 = 0xfef75ba8
%o7 = 0xfefd90fc libthread.so.1`_dispq+0x3f8 %i7 = 0xfefa8b8c
libthread.so.1`_qswtch+0x5c

%psr = 0xfe000000 impl=0xf ver=0xe icc=nzvc
ec=0 ef=0 pil=0 s=0 ps=0 et=0 cwp=0x0
%y = 0xff3e91f0
%pc = 0xfefaa064 libthread.so.1`_disp+0x88
%npc = 0xfefaa068 libthread.so.1`_disp+0x8c
%sp = 0xfef75b48
%fp = 0xfef75ba8

%wim = 0x00000000
%tbr = 0x00000000
Any help will be of great help.

Thanks