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xen-devel
Re: [Xen-devel] Xen-Unstable : strange power cycling problem
> Today I tried Xen Unstable again, using latest version
> from bk repository.
>
> Xend starts without any problem and I was able to
> start the new domain easily. I can ssh to new domain
> and everything works as expected. That's great!
It's good to hear that other people are having success with the
new tools.
> But if I do a ssh (or try any sort of network
> connection) to domain0, it just power cycles the
> machine. I am able to ssh to other machines though.
> Seems something strange happening in network
> virtualization..
This is obviously very concerning. Would it be possible for you
to connect a serial console to collect a crash dump? You'll need
to put "com1=115200,8n1" on the xen grub line.
Because dom0 owns the VGA console, Xen isn't easily able to do a
crash dump to it. Hmm, maybe Xen should try snatching it back in
the event of a crash, but this wouldn't work if the display was
running X anyhow.
Is your machine multiprocessor? If so, can you reproduce with
"nosmp" on the Xen command line?
It seems rather more likely that you're experiencing a general
networking problem rather than something specific to incoming
connections. Please can you test this by trying to exercise
networking e.g. using ttcp.
Although it won't help with this particular problem, its always
worth running with "watchdog" enabled. [There's a strong argument
for making this the default.]
Ian
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