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Re: Panic: HYPERVISOR_mmu_update failed on old NetBSD-5.2 domU



Brian Buhrow <buhrow%nfbcal.org@localhost> writes:

> 	maybe someone knows what I am obviously missing.  Any ideas would be
> greatly appreciated.  

Not all that helpful, but there have been many advisories for security
problems in xen, and changes to various hypervisor calls as part of the
fixes.  NetBSD 5 is long unmaintained, as is 6, and 7 is no longer
maintained.  I know you know that, but wanted to say it for the record.

It might well be that the different CPU is exposing some code path that
has a latent bug.

I would look at the "xen dmesg" or whatever the right command is to see
the xen kernel printfs from the dom0.

You might try an 8 kernel on your 5 userland and see if that works.



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