A few weeks ago one of our cluster servers started abending every sunday when trustbar runs. Five other servers run trustbar at the same time and are configured the same and run fine. We are running netware 6.5 sp8. Below is the abend log from the most recent abend. I don't have a clue, any ideas would be greatly greatly appreciated. I'll probably try loading it in protected memory and see what happens this weekend.
paul


Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.08

Server CS1 halted Sunday, July 12, 2009 12:00:16.635 pm
Abend 1 on P00: Server-5.70.08: Page Fault Processor Exception (Error code 00000000)

Registers:
CS = 0008 DS = 0023 ES = 0023 FS = 0023 GS = 0023 SS = 0010
EAX = AB400140 EBX = 00636F64 ECX = 0193E404 EDX = 00000000
ESI = A6522880 EDI = 9099D0B4 EBP = 0193EDB0 ESP = 0193E4B8
EIP = 90A1ADA8 FLAGS = 00010202
90A1ADA8 8B7BA1 MOV EDI, [EBX-5F]=?
EIP in NLMLIB.NLM at code start +0001DDA8h
Access Location: 0x00636F05

The violation occurred while processing the following instruction:
90A1ADA8 8B7BA1 MOV EDI, [EBX-5F]
90A1ADAB 83EB63 SUB EBX, 00000063
90A1ADAE 81FF2053444F CMP EDI, 4F445320
90A1ADB4 742D JZ 90A1ADE3
90A1ADB6 6A16 PUSH 16
90A1ADB8 E87F3CF7FF CALL THREADS.NLM|_set_errno
90A1ADBD 83C404 ADD ESP, 00000004
90A1ADC0 31DB XOR EBX, EBX
90A1ADC2 FF152C719A90 CALL near ptr [909A712C]=SERVER.NLM|kExitNetWare
90A1ADC8 89D8 MOV EAX, EBX



Running process: TrustBar__P 1 Process
Thread Owned by NLM: TRUSTBAR.NLM
Stack pointer: 193FB58
OS Stack limit: 1901440
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU
Stack: --00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
-8B1C7D50 (COMN.NSS|LONGNS_ValidCharBitMap+0)
--0CCDC000 ?
--0CCDC200 ?
--0CCDC200 ?
-00441F88 (SERVER.NLM|xAllocSizeTable+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000006 (LOADER.NLM|KernelAddressSpace+6)
00220000 (SERVER.NLM|SchedStartThreadTimeUsage+8)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
8B147F50 (COMN.NSS|ScanNextComponentAsciiLen+0)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000004 (LOADER.NLM|KernelAddressSpace+4)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--8B4645A8 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
-8B1C7D50 (COMN.NSS|LONGNS_ValidCharBitMap+0)
--003E86D6 ?
--FF963A3C ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--0CCDC600 ?
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000015 (LOADER.NLM|KernelAddressSpace+15)
--00010000 (LOADER.NLM|KernelAddressSpace+10000)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000010 (LOADER.NLM|KernelAddressSpace+10)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
8AF9B9D0 (NWSA.NSS|ZH_ShrinkFileSize+280)
--93874A80 ?
--93874A80 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--93874A80 ?
0020E422 (SERVER.NLM|kMutexUnlock+10A)
--AB400140 ?
--93874A80 ?
--93874A80 ?
--93874A80 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--A6522880 ?
90994313 (THREADS.NLM|_SURestore+22F)
--A6522880 ?
--A78F6A80 ?
--A6522880 ?
90A0150F (NLMLIB.NLM|opendir+1CF)
--A78F6AE3 ?
90A0151B (NLMLIB.NLM|opendir+1DB)
--61687306 ?
--27646572 ?
--61302E30 ?
--2054505F ?
--2D2D4257 ?
--2D2D2D2D ?
--2D2D2D2D ?
--2D2D2D2D ?
--2D2D2D2D ?
--2D2D2D2D ?
--2D2D2D2D ?
--2C2D2D2D ?
--63302E30 ?
--2054505F ?
--47626557 ?
--38302042 ?
--6E694620 ?
--74206C61 ?
--6E696172 ?
--20676E69 ?
--68637241 ?
--64657669 ?
--312E3120 ?
--302E3024 ?
--505F6132 ?
--65572054 ?
--20424762 ?
--305F3730 ?
--39305F38 ?
--6E616820 ?
--74756F64 ?
--2E312073 ?
--74411C31 ?
--646E6574 ?
--65636E61 ?
--69724720 ?
--65522064 ?

Additional Information:
The CPU encountered a problem executing code in NLMLIB.NLM. The problem may be in that module or in data passed to that module by a process owned by TRUSTBAR.NLM.