hobbit_client crashing on Solaris 9 hobbit version 4.2.0

[Heinze.external at qimonda.com]

The hobbit_client on my Solaris 9 server (which also runs my hobbit
server, version 4.2.0) went red last night (after several months of
perfect operation).  

Apparently hobbit_client keeps crashing and dumping core files, then the
hobbit server / channels process restarts it.  I tried restarting
hobbit, but the problem persists.

On the hobbit_client web page:
- Program crashed

Fatal signal caught!

in /var/log/hobbit/clientdata.log:
2007-04-04 13:43:23 Worker process died with exit code 134, terminating
2007-04-04 13:48:24 Worker process died with exit code 134, terminating
2007-04-04 13:53:24 Worker process died with exit code 134, terminating
2007-04-04 13:58:25 Worker process died with exit code 134, terminating
2007-04-04 14:08:27 Worker process died with exit code 134, terminating

and in /var/log/hobbit/hobbitlaunch.log:
2007-04-04 13:43:23 Task clientdata terminated, status 1
2007-04-04 13:48:24 Task clientdata terminated, status 1
2007-04-04 13:53:24 Task clientdata terminated, status 1
2007-04-04 13:58:25 Task clientdata terminated, status 1
2007-04-04 14:08:27 Task clientdata terminated, status 1

I saw another post about these errors, and went ahead and ran gdb
against one of the core files:
sudo -u hobbit gdb bin/hobbitd_client /tmp/core
GNU gdb 6.0
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "sparc-sun-solaris2.9"...
Core was generated by `hobbitd_client'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/libpcre.so.0...done.
Loaded symbols for /usr/local/lib/libpcre.so.0
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libsocket.so.1...done.
Loaded symbols for /lib/libsocket.so.1
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libc.so.1...done.
Loaded symbols for /lib/libc.so.1
Reading symbols from /usr/local/lib/libgcc_s.so.1...done.
Loaded symbols for /usr/local/lib/libgcc_s.so.1
Reading symbols from /lib/libdl.so.1...done.
Loaded symbols for /lib/libdl.so.1
Reading symbols from /lib/libmp.so.2...done.
Loaded symbols for /lib/libmp.so.2
Reading symbols from
/usr/platform/SUNW,Sun-Fire-480R/lib/libc_psr.so.1...done.
Loaded symbols for /usr/platform/SUNW,Sun-Fire-480R/lib/libc_psr.so.1
#0  0xff1a0b8c in _libc_kill () from /lib/libc.so.1
(gdb) bt
#0  0xff1a0b8c in _libc_kill () from /lib/libc.so.1
#1  0xff136ea0 in abort () from /lib/libc.so.1
#2  0x00028018 in sigsegv_handler (signum=11) at sig.c:57
#3  <signal handler called>
(gdb) q

Any suggestions?

Thanks in advance for your help.

-Josh