[Info-vax] XPERR analysis

[VAXman- at SendSpamHere.ORG]

In article <3a0bfe8f-9bd7-4359-a9fd-b4a0a227eb33 at j14g2000yqm.googlegroups.com>, GerMarsh <marsh.family at tirhir.com> writes:
>On 8 Dec, 17:37, Volker Halle <volker_ha... at hotmail.com> wrote:
>> On 8 Dez., 15:12, Steve <etmsr... at yahoo.co.uk> wrote:
>>
>>
>>
>>
>>
>> > On 8 Dec, 08:28, Volker Halle <volker_ha... at hotmail.com> wrote:
>>
>> > > On 7 Dez., 18:34, Steve <etmsr... at yahoo.co.uk> wrote:
>>
>> > > > 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 t=
>he
>> > > > > > Files-11 sub-system (F11BXQP). This kind of bugcheck is an INLI=
>NE
>> > > > > > 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 cr=
>ash
>> > > > > > 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 no=
>de ?
>> > > > > > 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 man=
>y
>> > > > > 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 ha=
>ve
>> > > > 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- Zitierten Text ausblenden -
>>
>> > > > - Zitierten Text anzeigen -
>>
>> > > Steve,
>>
>> > > this crash is most likely in routine RES_SEQ_MISMATCH with a source
>> > > code comment of:
>>
>> > > Found a stale referenced or nondirectory FCB in FCB queue
>>
>> > > The last F11BXQP.EXE from VAXF11X06_071 is from 13-OCT-2009.
>>
>> > > Crashes with this footprint have been seen on V6.2, V7.1 and even
>> > > V7.2. VMS engineering has supplied the most recent F11BXQP image in
>> > > those cases. If you have (prior version !) support, you need to
>> > > escalate this problem to HP and ask for the most recent F11BXQP.EXE
>> > > from the last build for the remedial stream for V7.1.
>>
>> > > If the crash only happens if enabling a SECOND CPU, this may very wel=
>l
>> > > be a synchronization bug within the XQP, which gets triggered if
>> > > running on a SMP system.
>>
>> > > Volker.- Hide quoted text -
>>
>> > > - Show quoted text -
>>
>> > Hi Volker,
>>
>> > Did you mean 2009 or 1999? =A0If 1999 then we have it installed. =A0If
>> > 2009...
>>
>> > Steve- Zitierten Text ausblenden -
>>
>> > - Zitierten Text anzeigen -
>>
>> Steve,
>>
>> OpenVMS VAX V7.1 is more than 10 years old. The last XQP patch for
>> V7.1 has been released on 13-JUN-2000 ! The F11BXQP.EXE file had a
>> link date of 13-OCT-1999 - this should be the version you're running.
>>
>> You would need to contact HP, if you want a newer F11BXQP.EXE, which
>> may fix those crashes.
>>
>> Volker.- Hide quoted text -
>>
>> - Show quoted text -
>
>Does the instruction stream point to the suspect module?...
>
>SDA> ex @pc-10:@pc+10/instr
>%SDA-W-INSKIPPED, unreasonable instruction stream - 2 bytes skipped
>F11BXQP+02C95:  TSTL    42(R2)
>F11BXQP+02C98:  BEQL    F11BXQP+02C9F
>F11BXQP+02C9A:  TSTW    18(R2)
>F11BXQP+02C9D:  BEQL    F11BXQP+02CA3
>F11BXQP+02C9F:  BUGW   #05CC
>F11BXQP+02CA3:  PUSHL   R2
>F11BXQP+02CA5:  CALLS   #01,F11X$INIT_XQP+002FD
>F11BXQP+02CAC:  PUSHL   R2
>F11BXQP+02CAE:  CALLS   #01,F11BXQP+01546
>F11BXQP+02CB5:  PUSHL   R2
>SDA>

That helps.  A look at what's in the data pointed to by R2 at the point of
the bugcheck could help too.

-- 
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