RE: Reboot on *DOM0* while/after installing GPLPV drivers

[John Hayward <john.hayward%wheaton.edu@localhost>]

also -- typing control-t after ls
root@johnhxen:xen{522}: ls /kern/xen 
load: 0.00  cmd: ls 194 [tstile] 0.00u 0.00s 0% 960k 
load: 0.00  cmd: ls 194 [tstile] 0.00u 0.00s 0% 960k
load: 0.00  cmd: ls 194 [tstile] 0.00u 0.00s 0% 960k
load: 0.00  cmd: ls 194 [tstile] 0.00u 0.00s 0% 960k
johnh...
________________________________________
From: John Hayward
Sent: Tuesday, October 15, 2013 2:05 PM
To: Manuel Bouyer
Cc: Adiel; Takahiro HAYASHI; port-xen%NetBSD.org@localhost; Mike C.
Subject: RE: Reboot on *DOM0* while/after installing GPLPV drivers

Now back to the wedge state with xen-debug.gz for kernel
output of ps axl
====
 UID PID PPID  CPU PRI NI    VSZ    RSS WCHAN    STAT TTY      TIME COMMAND
   0   0    0    0 125  0      0 133144 schedule DKl  ?     0:01.11 [system]
   0   1    0    0  85  0   6520   1068 wait     Is   ?     0:00.01 init
   0  96    1  244  85  0  71608   5300 wait     I    ?     0:00.01 
/usr/pkg/bin/python2.7 /usr/pkg/sbin/xend start
   0  97   96  170 117  0  75704  14584 tstile   Sl   ?     0:00.11 
/usr/pkg/bin/python2.7 /usr/pkg/sbin/xend start
====
Looks like tstile is wchan for pid 97.

I'm also seeing in /var/log/xen/xend-debug.log
====
Xend started at Tue Oct 15 13:57:19 2013.
brctl: not found
brctl: not found
====
johnh...
________________________________________
From: John Hayward
Sent: Tuesday, October 15, 2013 1:53 PM
To: Manuel Bouyer
Cc: Adiel; Takahiro HAYASHI; port-xen%NetBSD.org@localhost; Mike C.
Subject: RE: Reboot on *DOM0* while/after installing GPLPV drivers

Thanks for your patience!
Now I get an error on xc:
====
xc: error: Could not obtain handle on privileged command interface (2 = No such 
file or directory): Internal error
Traceback (most recent call last):
  File "/usr/pkg/sbin/xend", line 36, in <module>
    from xen.xend.server import SrvDaemon
  File "/usr/pkg/lib/python2.7/site-packages/xen/xend/server/SrvDaemon.py", 
line 26, in <module>
    import relocate
  File "/usr/pkg/lib/python2.7/site-packages/xen/xend/server/relocate.py", line 
28, in <module>
    from xen.xend import XendDomain
  File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendDomain.py", line 36, 
in <module>
    from xen.xend import XendOptions, XendCheckpoint, XendDomainInfo
  File "/usr/pkg/lib/python2.7/site-packages/xen/xend/XendCheckpoint.py", line 
20, in <module>
    from xen.xend import balloon, sxp, image
  File "/usr/pkg/lib/python2.7/site-packages/xen/xend/image.py", line 46, in 
<module>
    xc = xen.lowlevel.xc.xc()
xen.lowlevel.xc.Error: (1, 'Internal error', 'xc_interface_open failed: No such 
file or directory')
=====

I'm going to try xen-debug.gz to see if there is more info.
I have 768MB for memory for dom0 - could that be an issue with xen4.2.3?
johnh...
_________________________________
From: port-xen-owner%NetBSD.org@localhost [port-xen-owner%NetBSD.org@localhost] 
on behalf of Manuel Bouyer [bouyer%antioche.eu.org@localhost]
Sent: Tuesday, October 15, 2013 1:36 PM
To: John Hayward
Cc: Adiel; Takahiro HAYASHI; port-xen%NetBSD.org@localhost; Mike C.
Subject: Re: Reboot on *DOM0* while/after installing GPLPV drivers

On Tue, Oct 15, 2013 at 06:33:07PM +0000, John Hayward wrote:
> Thanks for the note back.
> The initial problem was that I had put the xen.gz in a different directory - 
> I got that fixed.
> I also removed the duplicate xend in /etc/rc.d
>
> Now I am putting things back to 4.2.3 and when xend starts it hangs and when 
> HUP is sent:
> ====
> ^CTraceback (most recent call last):
>   File "/usr/pkg/sbin/xend", line 110, in <module>
>     sys.exit(main())
>   File "/usr/pkg/sbin/xend", line 92, in main
>     return daemon.start()
>   File "/usr/pkg/lib/python2.7/site-packages/xen/xend/server/SrvDaemon.py", 
> line 181, in start
>     s = r.read()
> KeyboardInterrupt
> ====
> Looking at the svrDaemond.pv it appears to be attempting to read from a 
> socket of a forked child.
>
> Any program attempting to access /kern (including on shutdown) seems to get 
> wedged.

Can you see on what channel it's wedged ?
^T, or ps axl should tell you.

--
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--