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xen-users
RE: [Xen-users] Problem with Dell Poweredge 1850
> Yes I can hit Ctrl-a, press h, and I do see the help
> screen printed out when the machine is hung. What is the next step ?
OK, that's interesting. It means Xen is still happy, it's just the dom0
that's having problems. What do you see if you hit the 'q' key? Does the
guest respond, or just Xen?
If the guest does respond, please look up the EIP. The other thing you
could do would be to compile Xen with perf counters and see if the
number of interrupts is still going up.
Also, please can you have a go using the latest unstable version of Xen.
It's possible that the new ACPI code might make a difference.
Ian
> Thanks,
> -Rob
>
> Ian Pratt wrote:
> >>
> >> I seem to be experiencing the same problem that Michal Urbanski
> >>talked about in an email dated March 24th with a subject of
> "hanging
> >>dell hardware". Looking through the archives I can not find any
> >>resolution to the problem. The specs on my machine are
> >>
> >>Dell Poweredge 1850
> >>Dual Xeon 2.8s
> >>1gig ram
> >>PERC 4e/SI raid controller in mirror configuration with 2
> 73 gb drives
> >>(uses the megaraid_mm/megaraid_mbox modules)
> >
> >
> > Have other people had more success with this PERC 4e/SI
> card? I know
> > that the basic 1850 works fine under Xen.
> >
> >
> >>Any time the system is placed under high IO ( for example
> untar/bz2ing
> >>a tarball to create the fs for a xenU partiton) the machine hangs.
> >>There are no kernel messages. The console becomes completely
> >>unresponsive (pressing Caps lock does not change the status of the
> >>caps lock light) I can't use the magic sysreq key. I've
> tried adding
> >>"watchdog" to the end of the grub line that loads xen.gz.
> That didn't
> >>change anything.
> >>I've also tried disabling hyperthreading with no success. I'm using
> >>xen 2.0.5 with a 2.6.10 xen0 kernel. My raid controller bios is
> >>already at version 516a (the newest I can find on the dell
> site.) Does
> >>anyone have any more suggestions for me.
> >
> >
> > Get a serial line on the machine, and boot a debug=y build
> of Xen with
> > 'watchdog com1=115200,8n1' on the Xen command line.
> >
> > If you hit ctrl-a 3 times, and then 'h' you should get a
> help message.
> > See if you still get this when the machine is in the wedged state.
> >
> > Ian
>
>
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