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xen-devel
Re: [Xen-devel] Xenoprof errors with Xen-unstable
"Apparao, Padmashree K" <padmashree.k.apparao@xxxxxxxxx> writes:
> I am running the latest xen-unstable on linux 2.6.16.13. I get the following
> errors on trying to start Oprofile in the guest
>
> Operation 8 failed for domid 1 (sattus=-1). Could not open profiled device
>
> And operation 8 in xenoprof.h is enable_virq.
>
>
>
> I have debugged a bit and found that the active_index is returning -1 for the
> guest domid.
>
> Renato suggests debugging the XENOPROF hypercall set_active as it may not be
> adding the domain to the active list.
Quick sanity check: what's the contents of
/dev/oprofile/active_domains on your primary domain?
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