I'm experiencing ABENDs on my server since the SP4a patch. ABEND log below -

sequence -
applied nw65sp4 and GW655e on 12/12/05 by 0330 hrs
upon arrival 12/13 multiple abends - rebooted fine but GWIA didnt start -
manually updated GWIA NLMs and it starts fine
upon arrival on 12/14 mulitple abends - rebooted fine - GWIA started fine
applied post SP4 patches - TCP, NSS, IPP
12/15 morning - no failure
upon arrival 12/16 multiple abends - rebooted fine
Applied Backup Exec minor version upgrade - BE 9.1 for NetWare - now
running 9.1.1158 ours was 9.1.1067
Backup runs to completion no errors.

No backups have been scheduled on Saturday or Sunday (12/17-18) but I've
logged two additional ABEND events that have locked up the server - one on
each day. (0538 hrs on the 17th and 1855 hrs on 18th). I am no longer
convinced that the backups have anything to do with the ABENDs. Both of
the last two events report -

Abend 1 on P00: Server-5.70.04-4346: Kernel detected an attempted context
switch while holding a spinlock

The server and all processes seem to be stable during the business day
under normal use. I'll probably open an incident tomorrow if I find no
solutions here in the forums.

************************************************** *******
Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.04

Server FP1FS1 halted Saturday, December 17, 2005 5:38:21.388 am
Abend 1 on P00: Server-5.70.04-4346: Kernel detected an attempted context
switch while holding a spinlock


Registers:
CS = 0060 DS = 007B ES = 007B FS = 007B GS = 007B SS = 0068
EAX = 00000000 EBX = FBF24D88 ECX = 00000000 EDX = 00000000
ESI = 0004E54B EDI = 00000296 EBP = C02D2B54 ESP = C02D2B10
EIP = 0021A107 FLAGS = 00000002
0021A107 83C404 ADD ESP, 00000004
EIP in SERVER.NLM at code start +000192A7h

The violation occurred while processing the following instruction:
0021A107 83C404 ADD ESP, 00000004
0021A10A 5D POP EBP
0021A10B 5E POP ESI
0021A10C 5B POP EBX
0021A10D C3 RET
0021A10E 8B15DC43F0FB MOV EDX, [FBF043DC]=FBF24CBE
0021A114 52 PUSH EDX
0021A115 E96AFFFFFF JMP 0021A084
0021A11A 8B2DE443F0FB MOV EBP, [FBF043E4]=FBF24D40
0021A120 55 PUSH EBP



Running process: Server 15 Process
Thread Owned by NLM: SERVER.NLM
Stack pointer: C02D2F80
OS Stack limit: C02CB040
CPU 0 (Thread C02C9420) is in a NO SLEEP state
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU
Stack: --FBF24D88 ?
--C02D2B54 ?
--0004E54B (LOADER.NLM|PSD_LibraryErrno+F53B)
--4E54A000 ?
00217A2B (SERVER.NLM|SchedThreadYield+63)
--00000001 ?
--C02D2B54 ?
--00000001 ?
--0004E54B (LOADER.NLM|PSD_LibraryErrno+F53B)
--4E54A000 ?
C06B80F0 (NSS.NLM|xReleaseAllPages+190)
--00026B85 (LOADER.NLM|XENSharedInfo+5B85)
--4E54A000 ?
--00000000 ?
--E6CF9BBD ?
--64010400 ?
--64000000 ?
--7FFBF000 ?
0023231D (SERVER.NLM|SetFileCacheMaxSize+A1)
--FE0BB100 ?
--FE0BB100 ?
002EBAE3 (SERVER.NLM|SetSetableParameterValue+43B)
80000000 ?
--00000038 ?
--C02D2C98 ?
--46394641 ?
--38333033 ?
--00000010 ?
--C02D2BD8 ?
--00000010 ?
--0084623F ?
--C02D2BD8 ?
002DA00D (SERVER.NLM|OutputToString+2765)
--00084623 ?
--00000010 ?
--C02D2BD8 ?
--00000010 ?
--084623F7 ?
--C02D2BD8 ?
002DA00D (SERVER.NLM|OutputToString+2765)
--0084623F ?
--00000010 ?
--C02D2BD8 ?
-004382CC (SERVER.NLM|xAllocSizeTable+C)
--C02D2CFC ?
-004382D8 (SERVER.NLM|xAllocSizeTable+18)
--00000008 ?
-004382D8 (SERVER.NLM|xAllocSizeTable+18)
--00000043 ?
--C02D2CFC ?
--32363438 ?
--43374633 ?
--00000000 ?
--00000000 ?
-84E3CA04 (DS.NLM|DotDelims+0)
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
-84649626 (SLP.NLM|(Data Start)+1626)
--00000000 ?
-84E003D3 (DS.NLM|DS8471AAC0+33D3)
--43A422DD ?
--00000000 ?
--00000000 ?
--AF9F3038 ?
--00000010 ?
-004382D8 (SERVER.NLM|xAllocSizeTable+18)
85917024 (DS.NLM|DSDummyVerbRedirector+0)
--AF7D2B88 ?
--AF7D2A40 ?
--00000000 ?
--00000148 ?
--00000000 ?
--00000013 ?
--C02D2CAC ?
--00000000 ?
--00000006 ?
--00000000 ?
--C02D2C94 ?
-84649624 (SLP.NLM|(Data Start)+1624)
-846490DC (SLP.NLM|(Data Start)+10DC)
--AF9F3038 ?
--84627C40 ?
--454C4946 ?
--43414320 ?
--4D204548 ?
--4D495841 ?
--53204D55 ?
-00455A49 ?
--8A6BFD80 (ROTLOGS.NLM|set_vmctx+894C)
--C02D2CC8 ?
--84627C40 ?
--8A6BFD80 (ROTLOGS.NLM|set_vmctx+894C)
00215310 (SERVER.NLM|kRWLockAlloc+A0)

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.

************************************************** *******
Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.04

Server FP1FS1 halted Sunday, December 18, 2005 6:55:40.344 pm
Abend 1 on P00: Server-5.70.04-4346: Kernel detected an attempted context
switch while holding a spinlock


Registers:
CS = 0060 DS = 007B ES = 007B FS = 007B GS = 007B SS = 0068
EAX = 00000000 EBX = FBF24D88 ECX = 00000000 EDX = 00000000
ESI = 000513A1 EDI = 00200296 EBP = 84687984 ESP = 84687940
EIP = 00224327 FLAGS = 00200002
00224327 83C404 ADD ESP, 00000004
EIP in SERVER.NLM at code start +000192A7h

The violation occurred while processing the following instruction:
00224327 83C404 ADD ESP, 00000004
0022432A 5D POP EBP
0022432B 5E POP ESI
0022432C 5B POP EBX
0022432D C3 RET
0022432E 8B15DC43F0FB MOV EDX, [FBF043DC]=FBF24CBE
00224334 52 PUSH EDX
00224335 E96AFFFFFF JMP 002242A4
0022433A 8B2DE443F0FB MOV EBP, [FBF043E4]=FBF24D40
00224340 55 PUSH EBP



Running process: Server 18 Process
Thread Owned by NLM: SERVER.NLM
Stack pointer: 84688DE8
OS Stack limit: 84681040
CPU 0 (Thread 86F47180) is in a NO SLEEP state
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU
Stack: --FBF24D88 ?
--84687984 (NSPSLP.NLM|iswdigit+9ACD)
--000513A1 ?
--513A0000 ?
00221C4B (SERVER.NLM|SchedThreadYield+63)
--00000001 ?
--84687984 (NSPSLP.NLM|iswdigit+9ACD)
--00000001 ?
--000513A1 ?
--513A0000 ?
C06B80F0 (NSS.NLM|xReleaseAllPages+190)
--000242DA (LOADER.NLM|XENSharedInfo+32DA)
--513A0000 ?
--00000000 ?
--E6CF9BBD ?
--65E93800 ?
--65C00000 ?
--7FFBF000 ?
0023C53D (SERVER.NLM|SetFileCacheMaxSize+A1)
--FE0BB100 ?
--FE0BB100 ?
002F5D03 (SERVER.NLM|SetSetableParameterValue+43B)
80000000 ?
8589B23B (DS.NLM|FSetUInt+37)
--84687C14 (NSPSLP.NLM|iswdigit+9D5D)
--00000016 ?
--00000004 ?
--84687C14 (NSPSLP.NLM|iswdigit+9D5D)
-84D84744 (DS.NLM|Wvf0ho0$SMValueHandle+4)
--00000001 ?
-84D847A4 (DS.NLM|Wvf0ho8$SMValueHandle+4)
--FFFFFFFF ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--FFFFFFFF ?
--84687A60 (NSPSLP.NLM|iswdigit+9BA9)
--0000000A ?
--FE186C60 ?
--84687AEC (NSPSLP.NLM|iswdigit+9C35)
84C5FAF6 (MASV.NLM|MADSGetConnPartitionAccess+66)
--0000000A ?
--846879F8 (NSPSLP.NLM|iswdigit+9B41)
--00000000 ?
--320A0800 ?
--00000000 ?
--00000000 ?
--00000000 ?
--FFFFFFFF ?
--00000000 ?
--00000000 ?
--00000000 ?
--FE5822A0 ?
--00000000 ?
--84687A2C (NSPSLP.NLM|iswdigit+9B75)
--84687A60 (NSPSLP.NLM|iswdigit+9BA9)
--00000000 ?
--00000000 ?
--0000000A ?
85887FC1 (DS.NLM|MASVGetConnPartitionAccess+38)
--0000000A ?
--00000001 ?
--00000000 ?
--00000000 ?
--00000000 ?
--00000000 ?
--84687AEC (NSPSLP.NLM|iswdigit+9C35)
--866E7828 ?
--0000000A ?
--00000001 ?
--84687A84 (NSPSLP.NLM|iswdigit+9BCD)
--84687A78 (NSPSLP.NLM|iswdigit+9BC1)
857C96B5 (DS.NLM|unuse$SMEntryHandle+2C)
--88532B68 ?
-84D84684 (DS.NLM|Wvf0ho0$SMEntryHandle+4)
--00000000 ?
--84687AD4 (NSPSLP.NLM|iswdigit+9C1D)
85886D33 (DS.NLM|MASVGetEffectiveRights+147)
--84687AA0 (NSPSLP.NLM|iswdigit+9BE9)
-84D84684 (DS.NLM|Wvf0ho0$SMEntryHandle+4)
--00000001 ?
-84D84734 (DS.NLM|Wvf0ho8$SMEntryHandle+4)
--00000000 ?
--00000000 ?
--00000000 ?
--00000001 ?
-84D84684 (DS.NLM|Wvf0ho0$SMEntryHandle+4)
--454C4946 ?
--43414320 ?
--4D204548 ?
--4D495841 ?
--53204D55 ?
-00455A49 (SERVER.NLM|CacheSearchTable+F6B1)
--00000000 ?
--00000000 ?
--00000000 ?
--84688800 (NSPSLP.NLM|iswdigit+A949)
--846888E8 (NSPSLP.NLM|iswdigit+AA31)

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.