Xen users - Dec 2005 - Dell PowerEdge 6800 hangs from time to time with dom0 only

It turns hard to make XEN 3.0 running on my middle-sized server.

Now when XEN 3.0 is released I first successfully put it on several PCs and then
decided to probe it on SMP and PAE enabled Dell PowerEdge 6800 server. And
experienced intermittent hangs just after dom0 comes up. The [login:] prompt
comes up and the server hangs completely for a while and in some 2-10 minutes
releases just to let me see it is OK and in a few minutes hangs again.
Everything is hang - the keyboard and the network. When it is released --
everything seems fine again. Possibly bugzilla could help me but unfortunately
the server is under production system and I have not many tries to reboot it.

Soon we probably purchase another Dell 6800 just to start experimenting with XEN
:)
The machine is big enough to be successfully virtualized: 4 Xeon Processors and
some 12Gb of memory. So we hope for the best.

---
Sergey Lukashevich



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On Dec 22, 2005, at 3:12 PM, Sergey Lukashevich wrote:
> It turns hard to make XEN 3.0 running on my middle-sized server.
>
> Now when XEN 3.0 is released I first successfully put it on several  
> PCs and then decided to probe it on SMP and PAE enabled Dell  
> PowerEdge 6800 server. And experienced intermittent hangs just  
> after dom0 comes up. The [login:] prompt comes up and the server  
> hangs completely for a while and in some 2-10 minutes releases just  
> to let me see it is OK and in a few minutes hangs again. Everything  
> is hang - the keyboard and the network. When it is released --  
> everything seems fine again. Possibly bugzilla could help me but  
> unfortunately the server is under production system and I have not  
> many tries to reboot it.
I was having problems on a Dell PowerEdge as well - appending nousb  
to grub''s boot options did the trick for me - have you tried that?

so one line of menu.lst might look like:

module /vmlinuz-2.6-xen0 root=/dev/hda2 ro nousb

Also, google for PowerEdge Dell Xen, and you''ll see that some other  
folks have been having problems as well - nousb fixed mine, however.



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On Fri, 23 Dec 2005, Luke wrote:
> Also, google for PowerEdge Dell Xen, and you''ll see that some
other
> folks have been having problems as well - nousb fixed mine, however.
On all the models of Dell PowerEdge systems (1550 dual-P3''s, and 2650 
dual-Xeon''s) I''ve tried Xen on, I''ve had to use the
''noapic'' option to Xen
kernel.. otherwise, I''d get hangs while loading the RAID/QLogic HBA 
drivers.. this only occurs with Xen 3 and not Xen 2, however.

------------------------------------------------------------------------
| nate carlson | natecars@natecarlson.com | http://www.natecarlson.com |
|       depriving some poor village of its idiot since 1981            |
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