[Info-vax] XPERR analysis

[VAXman- at SendSpamHere.ORG]

In article <0a37ac8f-b2f5-463b-921d-daa7fbaafa76 at j4g2000yqe.googlegroups.com>, Steve <etmsreec at yahoo.co.uk> writes:
>On Dec 2, 3:10=A0pm, GerMarsh <marsh.fam... at tirhir.com> wrote:
>> On 1 Dec, 18:13, Volker Halle <volker_ha... at hotmail.com> wrote:
>>
>> > A XQPERR is most likely caused by a software inconsistency in the
>> > Files-11 sub-system (F11BXQP). This kind of bugcheck is an INLINE
>> > bugcheck, initiated by a BUGW macro instruction. This is a TRAP
>> > instruction, so the updated PC points to the NEXT instruction. That
>> > instruction is totally unrelated , but provides an important crash
>> > footprint information.
>>
>> > A XQPERR crash with the next instruction being a 'PUSHL R2' is a known
>> > footprint. Are you running any defragmentation tools on this node ?
>> > Make sure to get the most recent F11BXQP.EXE from the latest V7.1
>> > build from HP.
>>
>> > Volker.
>>
>> Thank you for that response, Volker - I did notice that the disk has
>> more than its fair share of badly fragmented files. Some have many
>> extension headers.
>>
>> I'll see if there's a patch for the ancient F11BXQP.
>
>Gerald and I have found that although one of the clustered nodes
>doesn't have the latest one, the system that keeps crashing DOES have
>the latest F11X patch - VAXF11X06_071.
>:o(
>Since the system was reduced to a single CPU last weekend it's been
>stable though (touch wood!)
>Steve

It would be nice to know WHERE that XQPERR bugcheck was generated.  That
would help to understand what was observed to be inconsistent in the XQP
that caused it to take that bugcheck.

Did you check on the other programs which were running when the bugcheck
occurred?  Were they, perhaps, doing the same things that the program we
discussed in private email is doing?  That might offer a clue too but I'd
know more if I knew where your bugcheck was tossed up.


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