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Re: Host halted when increasing memory to guest

 
Feinberg Parker
Advisor

Host halted when increasing memory to guest

HPUX 11.23 vm v3.0 Has anybody had a problem of the host halting when starting a guest after increasing memory to the guest. We did a hpvmmodify -P host -r 12G
hpvmstop -P Host
hpvmstart -P host

This is when our host halted. Nothing in OLDsyslog or shutdownlog
12 REPLIES 12
Rita C Workman
Honored Contributor

Re: Host halted when increasing memory to guest

No, not so far.

You might try looking at the logfiles at
/var/opt/hpvm/common to see if you can get any info as to what was going on.

Just a thought,
Rita
Feinberg Parker
Advisor

Re: Host halted when increasing memory to guest

Thanks Rita but the logfiles show nothing unusal.
Tingli
Esteemed Contributor

Re: Host halted when increasing memory to guest

Seems your host runs out of memory. Or more precisely, out of swap space.
Feinberg Parker
Advisor

Re: Host halted when increasing memory to guest

We have 40GB of swap and only 2 guests.
Rita C Workman
Honored Contributor

Re: Host halted when increasing memory to guest

Well you might start ruling things out.

I might first run swa utility and get any patches for my host server and load them. That will rule out a problem with patches.
Oh....and even before I'd check to make sure all my current patches are in the right (configured) state.

When all else fails, go one step at a time..
Rita



sujit kumar singh
Honored Contributor

Re: Host halted when increasing memory to guest

Hi

for the swap on the host you should have the swap on the IVM host as Physical RAM+4GB of RAM, that is suggested for IVMs.

apart from that please get the latest patches for the OS and specifically the IVM related patches.
regards
sujit
Feinberg Parker
Advisor

Re: Host halted when increasing memory to guest

We patched this server just 2 months ago. We really have no info on why it crashed while doing hmvmmodify. Since we seldom make changes to our vm's we are just going to assume it was a freak instance. Thanks all for your ideas.
Don Morris_1
Honored Contributor

Re: Host halted when increasing memory to guest

Did the whole host OS crash (your original message referencing hpvmmodify/start/stop of "host" (when such commands would only affect Guests) leaves me unclear.

In any event -- did you check /var/adm/crash to see if the crash generated a crashdump? And if so, what do you get from:

cd /var/adm/crash/
kwdb -q4
trace event 0

?
Rita C Workman
Honored Contributor

Re: Host halted when increasing memory to guest

Gino,

Here's one last thing....do a man on hpvmdevmgmt. You might try using -r option and redirect it to produce a file that may report if there are any problems that could have been the cause of the halt.

...just a thought,
Rita