HP3000-L Archives

March 2008, Week 4

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
"Johnson, Tracy" <[log in to unmask]>
Reply To:
Johnson, Tracy
Date:
Thu, 27 Mar 2008 09:21:21 -0400
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text/plain (118 lines)
This may sound cheesy, but it seems to me all one needs to do is:

1) have Autostart/iX turned on.

2) Run an old CSL program which will you know will cause a system crash,
like a really old version of DIRK, for example.

> -----Original Message-----
> From: HP-3000 Systems Discussion 
> [mailto:[log in to unmask]] On Behalf Of John K.
> Sent: Thursday, March 27, 2008 1:57 AM
> To: [log in to unmask]
> Subject: Re: [HP3000-L] Unexpected boot on HP3000
> 
> Once upon a time (on the "Classic" systems) there was a machine 
> instruction which would cause an immediate warmstart or coolstart 
> (and maybe additional options, but I'd have to check the old 
> "Classic" machine instruction set manual).
> 
> I worked on a government project with a few dozen HP3000s scattered 
> around the globe that were often unattended, and that machine 
> instruction came in very handy as I could remotely reboot a 
> system when needed.
> 
> I don't know if that "Classic" code would work on an iX box.  Maybe 
> Stan would know.
> 
> John
> 
> At 2008-03-26 09:01 PM, Hawkins, Jim (HP, MPE/iX Lab) wrote:
> >Jeff wrote:
> > >There was, at some point in the 3000s history, a facility 
> for automatic
> > >recovery from a system failure (Easytime?  Autoboot?).
> >
> >AUTORESTART/iX
> >ISL> start -R
> >-R turns system aborts from an infinite loop displaying "Bxxx DEAD 
> >xxxx" into a poke of a magic address which causes the equivalent of 
> >a "Control B (GSP)>TC".
> >You then need an AUTOBOOT flag set to do an automatic "main> bo pri" 
> >or equivalent.
> >Then IF you have AUTOBOOT file configured (via SYSGEN) the ISL can 
> >read commands out of in (like DUMP and START -R RECOVERY) and 
> >possibly get back to the MPE colon prompt. . .
> >
> >UPS Monitor:
> >Will call preventative system abort if you're on battery and the 
> >battery is near death.
> >UPS Monitor actually clears the -R flag to protect you from trying 
> >to reboot with little remaining power.
> >
> >PDC (PA-RISC Processor Dependent Code):
> >As Craig mentions some HPMCs seem to cause "TC" or "RS" like 
> >behavior.   Without autoboot flag and AUTOBOOT you should get stuck 
> >in the pre-ISL steps of boot-up.
> >
> >
> >Jim
> >
> >-----Original Message-----
> >From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On 
> >Behalf Of Jeff Kell
> >Sent: Wednesday, March 26, 2008 4:54 PM
> >To: [log in to unmask]
> >Subject: Re: [HP3000-L] Unexpected boot on HP3000
> >
> >Herb Statham wrote:
> > > Has anyone on the list gone through an "automatic" boot 
> on a HP3000 box
> > > before? If so, were you able to identify what caused the 
> machine to
> > > reboot itself? Our HP3000 is a 959-KS400 running MPE6.5 
> power patch
> > > level 2.
> >
> >There was, at some point in the 3000s history, a facility 
> for automatic
> >recovery from a system failure (Easytime?  Autoboot?).  It would dump
> >memory to disk, and reboot itself.  But this was generally 
> propagated by
> >a system failure.
> >
> >Did the system completely reboot, or pause at an ISL prompt?
> >
> >It sounds suspiciously like a power failure at the main processor, or
> >some other "reset" (certain hardware machine checks) that 
> initiated the
> >hard reset.
> >
> >Jeff
> >
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> >
> >--
> >No virus found in this incoming message.
> >Checked by AVG.
> >Version: 7.5.519 / Virus Database: 269.22.0/1343 - Release Date: 
> >2008-03-25 07:17 PM
> 
> 
> John
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