Re: [Xen-devel] xen-unstable domU smp broken for vcpus > physical cpus

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

> > I'm fairly certain that I've had vcpus > pcpus in domU working fine as
> > recent as 2005-03-31, but I'll backtrack and verify.
> I just built the 2005-03-31 snapshot, dom0 is SMP, two vcpus, and 
> booted
> domU with 4 vcpus with no problems.  Building 2005-04-01 in a simliar
> fashion now yields an oops in domU and one error [1]output from Xen.
> I then went to destroy the domU that I created and Xen went down.  And
> appearently, I don't have xen-sysms set up right as nont of the
> addresses are translated into function names.
The bug was actually in a changeset from late on 03-29, so it should 
have caused crashes as far back as the 2005-03-30 snapshot (the one 
taken on the morning on 03-30).
It's now fixed in the unstable repository - context switching between 
VCPUs of the same domain incorrectly cleared that physical CPU from the 
domain's bitmap.
 -- Keir


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