Novell 6.5 sp7 server (Destination Server) got restarted by itself. It has happened just after the consolidation of a small folder (40mb). The abend log on the destination server says “Abend 1 on P00: Server-5.70.07-4348: Kernel detected an attempted context switch when it was not allowed”.

Source server configuration:
PRIMERGY H450 FH
Novell 6.5 sp5

Destination Server:
HP BL460c
Novell 6.5 sp7
146gb 10k SAS 2.5 HDD
8 GB RAM

Destination server is newly commissioned on 12/03/08.
abend log on the destination server:
Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.07

Server ASC_NW5 halted Sunday, March 16, 2008 11:37:43.711 am
Abend 1 on P00: Server-5.70.07-4348: Kernel detected an attempted context switch when it was not allowed


Registers:
CS = 0008 DS = 0023 ES = 0023 FS = 0023 GS = 0023 SS = 0010
EAX = 00000000 EBX = 00000001 ECX = 00000000 EDX = FBF24DF3
ESI = 00000000 EDI = 00000001 EBP = 00000000 ESP = A52C7F68
EIP = 0021E4E8 FLAGS = 00000002
0021E4E8 83C404 ADD ESP, 00000004
EIP in SERVER.NLM at code start +00019BA8h

The violation occurred while processing the following instruction:
0021E4E8 83C404 ADD ESP, 00000004
0021E4EB 5D POP EBP
0021E4EC 5E POP ESI
0021E4ED 5B POP EBX
0021E4EE C3 RET
0021E4EF A19447F0FB MOV EAX, [FBF04794]=FBF26C48
0021E4F4 50 PUSH EAX
0021E4F5 E8ACE2EEFF CALL LOADER.NLM|Abend
0021E4FA 83C404 ADD ESP, 00000004
0021E4FD 5D POP EBP



Running process: Server 44 Process
Thread Owned by NLM: SERVER.NLM
Stack pointer: A52C7ABC
OS Stack limit: A52C0040
CPU 0 (Thread 9F56E1E0) is in a NO SLEEP state
Scheduling priority: 67371008
Wait state: 50500F0 Waiting for work
Stack: --FBF24DF3 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
0021BF2C (SERVER.NLM|SchedSwitch+48)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
002149CA (SERVER.NLM|WorkerThread+6E6)
--A1A951BF ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--9F56E1E0 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--9F56E1E0 ?
00221DF8 (SERVER.NLM|TcoNewSystemThreadEntryPoint+40)
--9F56E1E0 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--778B5324 ?
--FFFCE810 ?
--4689FFFF ?
--94A68A10 ?
--83000000 ?
--FC8004C4 ?
--BB850F06 ?
--34343434 ?
000194BE (LOADER.NLM|PnFarJumpFixup+50E)
--850F0000 ?
--00000124 (LOADER.NLM|KernelAddressSpace+124)
--00A086F6 ?
--0F020000 ?
--00011784 ?
--247C8300 ?
--21750020 ?
--00100500 ?
--00000020 (LOADER.NLM|KernelAddressSpace+20)
--00000008 (LOADER.NLM|KernelAddressSpace+8)
--03B85018 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00001000 (LOADER.NLM|KernelAddressSpace+1000)
--184BB000 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--96916900 ?
--A52C8000 ?
--A52CC780 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--2F3FE1C0 ?
-00020000 (LOADER.NLM|BIOSDriveCount+2B0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--2F3FC700 ?
--8A5CC820 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--A52CF680 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000400 (LOADER.NLM|KernelAddressSpace+400)
00110500 (LOADER.NLM|kActivateProcessor+27C)
--A5D92620 ?
89918E2C (NWPA.NLM|CDM_ClearAbortCheck+0)
--A52C8000 ?
89918E44 (NWPA.NLM|CDM_Final_Callback+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
00120501 (LOADER.NLM|PrePreOSMain+39)
--14020021 ?
--00000008 (LOADER.NLM|KernelAddressSpace+8)
--000554CF ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00001000 (LOADER.NLM|KernelAddressSpace+1000)
--3F0B7000 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--8F54D800 ?
--AC228300 ?
--8F54D800 ?
--AC228300 ?
--2F3FE060 ?
--00010106 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--31712480 ?
--8A5CC4A0 ?
--80945620 ?
--00000002 (LOADER.NLM|KernelAddressSpace+2)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--8F54D800 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000014 (LOADER.NLM|KernelAddressSpace+14)
--00000400 (LOADER.NLM|KernelAddressSpace+400)
00120501 (LOADER.NLM|PrePreOSMain+39)
--94DA7D68 ?
8991ECD4 (NWPA.NLM|ElevatorFilterAbort+0)
--A52C8080 ?

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.