GWIA periodically crashes on SLES

Question

I'm running two instances of GWIA (GW8.01HP1) on SLES10SP3(64bit) (no OES). I have a secondary domain on this box for my SMTP server (GWIA instance1, port 25) and then on that same domain, I'm running a second GWIA instance with IMAP (port 110) and SMTP (port 465) over TLS. This ran fine for about six months in this configuration and I haven't made any changes to the system.
Recently in the last month or so the second (IMAP) instance of GWIA started crashing periodically with the following dump to console. When I restart it, it will run fine for a few days to a few weeks, then crash again. The other instance of GWIA keeps humming right along through this though. I searched around but didn't see any known issues similar to this.
Could this be a DB issue that a rebuild might fix?
*** glibc detected *** /opt/novell/groupwise/agents/bin/gwia: free(): invalid pointer: 0xe48c6168 ***
======= Backtrace: =========
../lib/libc.so.6[0xf5919981]
../lib/libc.so.6(__libc_free+0x84)[0xf591b054]
/opt/novell/groupwise/agents/lib/libtoolkit.so(_WpmmUFree+0x2c)[0xf71fc23f]
/opt/novell/groupwise/agents/lib/libtoolkit.so(_WpmmUFreeLocked+0x24)[0xf71fc26e]
/opt/novell/groupwise/agents/lib/libtoolkit.so(WpmmTestUFreeLocked+0x2e)[0xf71fe525]
/opt/novell/groupwise/agents/lib/libinetpack.so(_Z13freeWriteBuffP15WRITE_BUFF_INFO PP7MM_VOIDPt+0x5d)[0xf6f0fcad]
/opt/novell/groupwise/agents/lib/libinetpack.so(_Z18Imap4HandlerThreadP19ngwgwia_co ntext_recP13svTCP_CONNBLK+0x382e)[0xf6f2df30]
/opt/novell/groupwise/agents/lib/libinetpack.so(NgwGwiaIMAPWork+0xd9)[0xf6f2e6af]
/opt/novell/groupwise/agents/lib/libgwia.so(_ZN6iaImap8_HandlerEP19TcpAgentHandlerD ata+0x37f)[0xf7e32873]
/opt/novell/groupwise/agents/bin/gwia(TcpAXmapThrdHandler+0xa11)[0x80aba00]
/opt/novell/groupwise/agents/lib/libsvrtk.so(_NgwThrdCreate+0x40)[0xf72cfb56]
../lib/libpthread.so.0[0xf58a535b]
../lib/libc.so.6(__clone+0x5e)[0xf5975c0e]
======= Memory map: ========
08048000-080e0000 r-xp 00000000 ca:02 4762161 /opt/novell/groupwise/agents/bin/gwia
080e0000-080ec000 rwxp 00098000 ca:02 4762161 /opt/novell/groupwise/agents/bin/gwia
080ec000-161d7000 rwxp 080ec000 00:00 0 [heap]
dde00000-ddf00000 rwxp dde00000 00:00 0
de000000-de0ff000 rwxp de000000 00:00 0
de0ff000-de100000 ---p de0ff000 00:00 0
de100000-de200000 rwxp de100000 00:00 0
de200000-de400000 rwxp de200000 00:00 0
de400000-de600000 rwxp de400000 00:00 0
de600000-de800000 rwxp de600000 00:00 0
de800000-de8fe000 rwxp de800000 00:00 0
de8fe000-de900000 ---p de8fe000 00:00 0
de900000-dea00000 rwxp de900000 00:00 0
dea00000-deb00000 rwxp dea00000 00:00 0
dec00000-dedfd000 rwxp dec00000 00:00 0
- <this goes on for a couple pages> -
./grpwise restart
Shutting down [SCC_Gateway]done
Shutting down [gwia.scc_gateway]done
Shutting down [imap.scc_gateway]failed
Starting [SCC_Gateway]done
Starting [gwia.scc_gateway]done
Starting [imap.scc_gateway]done

Answer 1

As a first I'd suggest to update the server's GroupWise packages to 802hp2 (which was released yesterday).
Next to that I've seen some reports in the forums that seem to indicate possible IMAP issues with certain new devices using IMAP. Nothing substantial.. but maybe try to trace which new devices have been introduced to the IMAP/GWIA service?
-Willem