Re: [Xen-users] xen dom0 server freezes every one or two hours

[Igor Chubin <igor@xxxxxxx>]

Hello Sebastian,

any news about your problem?


I've recommended my friend to try pci=routeirq
like Stephan advised, but without success :(
Nevertheless, thank you for your idea


On Do, Jan 03, 2008 at 08:48:45 +0100, Sebastian Reitenbach wrote:
> Hi,
> 
> Stephan Seitz <s.seitz@xxxxxxxxxxxx> wrote: 
> > I had similar problems on one machine which has been solved by adding
> > pci=routeirq to the kernel parameters at boot time.
> > 
> > I somewhat sure that your problem is caused by other issues, but ...
> > maybe it helps ;)
> thanks for this tip, I tried, but unfortunately it made the things worse. 
> I started the copyjob over NFS again, it only took 10 minutes, and the 
> server was frozen again.
> Now I'll try to NFS export sth. from dom0, not from a domU as before, and 
> start the copy job again, just to see what happens. 
> 
> kind regards,
> Sebastian
> > 
> > Regards,
> > 
> > Stephan
> > 
> > 
> > 
> > 
> > Sebastian Reitenbach schrieb:
> > > Hi,
> > > Igor Chubin <igor@xxxxxxx> wrote: 
> > >>> same problem here and it can be reproduced. I use Gentoo 2007.0 with 
> Xen 
> > >>> 3.1.2 and kernel 2.6.22 (xen-sources) in 64bit mode.
> > >>> The Server is a Dual Opteron 275 running in PV mode.
> > >>> The Dom0 freezes every time if you generate system high-load, for 
> > > example 
> > >>> starting a boinc-client or doing big filesystem transfers.
> > >>> -> Network hangs, SATA Devices time out
> > >> The problem I have mentioned earlier 
> > >> as far as I remember is on a Gentoo system too.
> > >> But there are no problems with the disk. 
> > >> Only network.
> > > 
> > > I think this is the problem here too. Over Christmas I downloaded the 
> > > opensuse KOTD, hoping that it maybe fixes the problem. the dom0 was 
> > > disconnected from network, and I had two domU's running, and I copied a 
> 650 
> > > MB file between these two via scp, for thousand times.
> > > 
> > > Two days ago, I connected the dom0 to the network again, and started 
> using 
> > > the domU's as file/print/... servers again.
> > > It took about an hour, and the server was frozen again, without any 
> notice 
> > > in /var/log/messages.
> > > 
> > > I created a bugreport, maybe you can add your observations there too.
> > > 
> > > http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1131
> > > 
> > >> May be if they try to generate big load on the system,
> > >> disk drives will hang too. 
> > >>
> > >>> Normally the system freezes every 2 hours.
> > >> At that case much more seldom.
> > >> Guys have said me that it hangs every several days
> > >> (but if it wants to it can hang several times a day).
> > >>
> > >>> I tried to play with the Xen version compatibility in the kernel, but 
> > > that 
> > >>> doesn't make a difference.
> > >>>
> > >>> Due to the HDD timeout I can't find anything in the logs...
> > >>>
> > >> Just a guess:
> > >>
> > >> it may not be related to Xen baloon driver?
> > >>
> > >> Do you use dom0_mem as a parameter for the hypervisor?
> > > I use dom0_mem, yes, but with and without this parameter, in both cases 
> the 
> > > dom0 froze.
> > > 
> > > kind regards
> > > Sebastian
> > > 
> 
> 
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-- 
WBR, i.m.chubin


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