Re: Talking about regressions...

[Bill Davidsen <davidsen-sQDSfeB7uhw@public.gmane.org>]

Michael Riepe wrote:
> When I did a couple of tests the other day, I noticed that one or more
> bugs must have been introduced at least into the vmx part in kvm-10:
> 
> - netbsd 3.1 used to work with kvm-9. In kvm-10, the system hangs during
> boot. One of the last things I can see is that a shell process dies with
> a SIGSEGV. Then the load rises to 100% (sys) on the host and stays there
> until I kill qemu (yes I've waited several minutes).

I got DragonFly BSD to work with kvm-10, no tricks and no issues. If 
that's a data point...
> 
> - opensolaris displays a "Time of Day clock error" during boot, claiming
> the clock has jumped by 0x5 (no unit given, I suppose that means
> seconds). Everything else seems to work.
> 
> - qemu-puppy-2.13-1 sometimes works and sometimes hangs somewhere inside
> the initial ramdisk. The exact place seems to differ, but usually it
> happens while the kernel modules are loaded. Again, host load rises to
> 100%. An older version (2.01-3) still works fine. kvm-9 works, too.

I'll try that tomorrow, but previously Puppy worked.
> 
> (Core Duo T2400, 32-bit SMP host, 32-bit guest, Linux 2.6.19 + kvm trunk
> revision 4290)
> 
> Any idea what to look for? The SIGSEGV on netbsd makes me suspect that
> there's a problem with the page tables, but I couldn't narrow down the
> cause yet.
> 


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