Re: [9fans] rc dying in my drawterm on xen

["Ronald G. Minnich" <rminnich@lanl.gov>]

On Fri, 19 Nov 2004, David Leimbach wrote:

> I just realized that Ron's plan 9 port was for the older version of
> Xen... I've got Xen 2.0.1 running and I'd be glad to help test it out
> if Ron needs any help.

yeah, I will be doing release paperwork monday. 


Here's what is happening when drawterm fails:
rc is started up
rc runs ps
ps gets all the data out of /proc/*/status
ps does a Pwrite of about 3K bytes. 

now it gets weird, but at least part of what is going on is that 
cpu does a read from it's opened fd for /mnt/term/dev/cpunote, and gets -1 
back. That's a hangup from the server (srvold9p I guess, right?) and so it 
sends a hangup to the group, everyone exits. 

Now what is going on between that Pwrite from ps and the hangup is still 
not real clear to me, but at least i've narrowed it down to that. 

Note that cpu -h localhost works fine with no problems. There is some 
difference (srvold9p) that is causing trouble here. 

Also, my Plan 9 port is to the unstable port of Xen, but it is pretty 
recent, and the Xen guys tell me that the interface to guest OSes has not 
changed terribly, so this may not be too bad. 

But having more eyes on my code will sure be useful.

ron