[Info-vax] TCPIP tying up system

[John Wallace]

On Nov 29, 9:27 pm, Ken Fairfield <ken.fairfi... at gmail.com> wrote:
> On Nov 29, 12:26 pm, John Wallace <johnwalla... at yahoo.co.uk> wrote:
> [...]
>
> > And for those cases where terminals are unresponsive but console
> > access is available?
>
> > I can't remember if there's an official procedure, but getting to
> > console mode (>>> on Alpha) and depositing rubbish (eg a 1) in the PC
> > springs to mind. It worked on my PWS when I tried it not long ago, but
> > that's not a very extensive sample. Also, different consoles have
> > different syntax, iirc some have a "crash" command, etc.
>
> Certainly on VAXes, you could Ctrl-P and do all sorts of
> stuff.
>
> Most "modern" Alphas don't respond to Ctrl-P.  :-(  They
> have a "reset" button.  That gets you to the console, but
> I don't seem to recall whether you can, at that point, get
> a crash dump.  It probably depends upon the specific
> Alpha and its firmware revision.
>
> For those Alphas that have RMC in the console firmware,
> I do believe you can get into RMC (<esc> <esc> RMC)
> and type "crash", but one would want to, as you said,
> plan ahead and make sure that command was available
> and does what you want.
>
> I've no experience with Itanium systems, so no comments...
>
>    -Ken
>
>
>
> > To fail to plan is to plan to fail, etc.
>
> > regards
> > john
>
>

I just tried the little "reset" button again on my PWS and the little
button is indeed a reset not a halt. I seem to have misremembered
earlier (though I'm sure there are plenty of Alphas that do understand
the difference between HALT and RESET).

Fortunately on this PWS, Control-P does work, so long as console
variable controlp is set to on (in advance, obviously - back to
planning again).

So the crash procedure for this box is, I think:
press control-P, see ">>>", type "deposit pc 1" then "continue", get
crash dump. Works for me. If I remember rightly :(