My server is having the abend below frequently

it's Dell PE 2650 server with Groupwise PO 6.5.6 and Mcafee Netshield 4.63h loaded

Any idea what's wrong

Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.07

Server PBNW10 halted Monday, March 22, 2010 12:06:37.383 pm
Abend 1 on P01: Server-5.70.07-1937: CPU Hog Detected by Timer

Registers:
CS = 0008 DS = 0010 ES = 0010 FS = 0010 GS = 0023 SS = 0010
EAX = FBF17BA3 EBX = 00000032 ECX = A5405943 EDX = A540594A
ESI = 8F2DD63C EDI = A540594B EBP = 8F2DD600 ESP = 8F2DD5C0
EIP = 00000000 FLAGS = 00000887


Running process: Interrupt service routine (nested count 0)
Interrupted process: GWTCP-HANDLER_1 Process
Thread Owned by NLM: GWPOA.NLM
Stack pointer: 8F2E1F1C
OS Stack limit: 8F2D3020
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU
Stack: --FBF17BA3 ?
92F7119B (GWENN4.NLM|GWENN4@WpS6SubstrMatch+48B)
--A540594B ?
0010DBF1 (LOADER.NLM|kProcessProtectedModeInterrupt+41)
-00141150 (LOADER.NLM|kVirtualInterruptTable160+0)
--00000032 (LOADER.NLM|KernelAddressSpace+32)
--8BD16668 ?
0010D54B (LOADER.NLM|kProtectedModeInterruptContinue+65)
92F60010 (GWENN4.NLM|GWENN4@WpdAddDatim+120)
--00000010 (LOADER.NLM|KernelAddressSpace+10)
--8F2D005A ?
--0000005A (LOADER.NLM|KernelAddressSpace+5A)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--A54058C2 ?
--8F2DD688 ?
--0000002F (LOADER.NLM|KernelAddressSpace+2F)
--8F2DD64C ?
92F70DDF (GWENN4.NLM|GWENN4@WpS6SubstrMatch+CF)
--A54058C2 ?
--A51629CC ?
--8F2DD63C ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--000000A0 (LOADER.NLM|KernelAddressSpace+A0)
--895243FC ?
0010D54B (LOADER.NLM|kProtectedModeInterruptContinue+65)
00210010 (SERVER.NLM|KiAddTraceEntry+38)
00210010 (SERVER.NLM|KiAddTraceEntry+38)
00210010 (SERVER.NLM|KiAddTraceEntry+38)
--0000002F (LOADER.NLM|KernelAddressSpace+2F)
--8F2DD62A ?
--8F2DD658 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--A54058B0 ?
--8F2DD6D4 ?
--0000005A (LOADER.NLM|KernelAddressSpace+5A)
--8F2DD698 ?
92F71219 (GWENN4.NLM|GWENN4@WpS6SubstrMatch+509)
--A54058B0 ?
--A51629CB ?
--8F2DD688 ?
--00000001 (LOADER.NLM|KernelAddressSpace+1)
00206928 (SERVER.NLM|kConditionValidate+E4)
--8E5CB500 ?
--0000005A (LOADER.NLM|KernelAddressSpace+5A)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--9B0FB7D0 ?
00203174 (SERVER.NLM|PerformCallOuts+148)
0020317C (SERVER.NLM|PerformCallOuts+150)
--81D4DE5A ?
--0000005A (LOADER.NLM|KernelAddressSpace+5A)
--A54058C2 ?
--A54058AE ?
--8F2DD720 ?
--0000002F (LOADER.NLM|KernelAddressSpace+2F)
--8F2DD6E4 ?
92F70DDF (GWENN4.NLM|GWENN4@WpS6SubstrMatch+CF)
--A54058AE ?
--A51629B8 ?
--8F2DD6D4 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
0010DBE9 (LOADER.NLM|kProcessProtectedModeInterrupt+39)
0010DBF1 (LOADER.NLM|kProcessProtectedModeInterrupt+41)
-00141150 (LOADER.NLM|kVirtualInterruptTable160+0)
--000000A0 (LOADER.NLM|KernelAddressSpace+A0)
--81D4DD74 ?
0010D54B (LOADER.NLM|kProtectedModeInterruptContinue+65)
--0000002F (LOADER.NLM|KernelAddressSpace+2F)
--0000002A (LOADER.NLM|KernelAddressSpace+2A)
--A5400010 ?
--A54058AF ?
--A540589F ?
--8F2DD76C ?
--00000020 (LOADER.NLM|KernelAddressSpace+20)
--8F2DD730 ?
92F71219 (GWENN4.NLM|GWENN4@WpS6SubstrMatch+509)
--A540589F ?
--A51629B7 ?
--8F2DD720 ?
--00000001 (LOADER.NLM|KernelAddressSpace+1)
0010D54B (LOADER.NLM|kProtectedModeInterruptContinue+65)
85F70010 (ACPIDRV.PSM|psmRestorePSMSwitchTable+84)
--00000020 (LOADER.NLM|KernelAddressSpace+20)
--00000010 (LOADER.NLM|KernelAddressSpace+10)
--A5405823 ?
--00000044 (LOADER.NLM|KernelAddressSpace+44)
--8F2DD73C ?
--00000020 (LOADER.NLM|KernelAddressSpace+20)
--00000020 (LOADER.NLM|KernelAddressSpace+20)
--A54058AE ?
--A5405837 ?
--8F2DD7B8 ?
--00000031 (LOADER.NLM|KernelAddressSpace+31)
--8F2DD77C ?
92F70DDF (GWENN4.NLM|GWENN4@WpS6SubstrMatch+CF)
--A5405837 ?
--A51629A7 ?
--8F2DD76C ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
-00420FEC (SERVER.NLM|targetProcessorTable+60)
0021AF13 (SERVER.NLM|_CommonSchedResume+3F3)

Additional Information:
The NetWare OS detected a problem with the system while executing a process owned by SERVER.NLM. It may be the source of the problem or there may have been a memory corruption.