Server abends shortly after restarting.

NW6.5, SP6

Found a TID that seemed similar (haven't found an exact match) which recommended disabling hyperthreading. Did that and the result is the same.

Here's a snippet of the abend log:

**** Begin Copy *****

Abend 1 on P00: Server-5.70.06: Page Fault Processor Exception (Error code 00000000)

CS = 0060 DS = 0068 ES = 0068 FS = 007B GS = 007B SS = 0068
EAX = FFFFFFF2 EBX = 00000027 ECX = 6CB9741C EDX = 00000000
ESI = 9774D168 EDI = 00000001 EBP = ABAF3F44 ESP = ABAF3F40
EIP = 97E13800 FLAGS = 00010246
97E13800 FF30 PUSH dword ptr [EAX]=?
EIP in NCPL.NLM at code start +00007800h
Access Location: 0xFFFFFFF2

The violation occurred while processing the following instruction:
97E13800 FF30 PUSH dword ptr [EAX]
97E13802 8B4508 MOV EAX, [EBP+08]
97E13805 FF7008 PUSH dword ptr [EAX+08]
97E13808 8B4508 MOV EAX, [EBP+08]
97E1380B 8B5008 MOV EDX, [EAX+08]
97E1380E 8B32 MOV ESI, [EDX]
97E13810 FF9628010000 CALL near ptr [ESI+00000128]
97E13816 59 POP ECX
97E13817 59 POP ECX
97E13818 EB3F JMP 97E13859

Running process: Apache_Worker 0 Process
Thread Owned by NLM: APACHE2.NLM
Stack pointer: ABAF3BC8
OS Stack limit: ABAE5180
Scheduling priority: 67371008
Wait state: 3030070 Yielded CPU
Stack: -9774D168 (NCPL.NLM|vtObject+0)

***** End Copy *****

We see this on the logger screen:

***** Begin Copy *****

[NIFIF] File Server Name = NetStorage-FS
[NIFIF] Current working directory = SYS:\XTIER\
[NIFIF] Original NameSpace = 0x00
[NIFIF] New NameSpace = 0x04
[XSRVNSP] initialize XSRVNSP returned 0x0
The running process will be suspended.

***** End Copy *****

Seems like something to do with the XTIER stuff, but I'm lost which direction to proceed.

Any suggestions?