My server has abended 3/4 times this week. This is an important server running GW7 email for 100mailboxes. Has been installed for 12months, and has only just started going wrong:

This is the start of the abend log:

any thoughts or comments...

Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.05

Server PATCERF1 halted Monday, 24 August 2009 2:57:26,866
Abend 1 on P02: Server-5.70.05: General Protection Processor Exception (Error code 00000000)

CS = 0060 DS = 007B ES = 007B FS = 007B GS = 007B SS = 0068
EAX = 00A9B000 EBX = A753C007 ECX = 00000004 EDX = 00000000
ESI = 00000000 EDI = 889916F8 EBP = FFFFFFFF ESP = 890DAE60
EIP = 00013C59 FLAGS = 00010046
00013C59 0F22D8 MOV CR3, EAX
EIP in UNKNOWN memory area

The violation occurred while processing the following instruction:
00013C59 0F22D8 MOV CR3, EAX
00013C5C C3 RET
00013C5D 8B442404 MOV EAX, [ESP+04]
00013C61 0F0138 INVALPG [EAX]
00013C64 C3 RET
00013C65 51 PUSH ECX
00013C66 52 PUSH EDX
00013C67 B8D1180000 MOV EAX, 000018D1
00013C6C C1E004 SHL EAX, 04
00013C6F 8B54240C MOV EDX, [ESP+0C]

Running process: Java_463 Watcher Process
Thread Owned by NLM: JAVA.NLM
Stack pointer: 890DAE90
OS Stack limit: 890AB160
CPU 2 (Thread 854A5540) is in a NO SLEEP state
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU