I am running the latest xen-unstable on linux 22.214.171.124. 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
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.
Before I go and start debugging the hypercalls, was
wondering if anyone has experienced such an error and if there is a quick fix
to it. Maybe something not setup correctly on my machine.
This is a fresh build Xen with all new sources (cleaned up
all my old stuff).