[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Re: Need help with fixing the Xen waitqueue feature
On Tue, Nov 08, Andres Lagar-Cavilla wrote: > Olaf, > are waitqueue's on the mem-event ring meant to be the way to deal with > ring exhaustion? i.e. is this meant to go beyond a testing vehicle for > waitqueue's? Putting the guest to sleep when the ring is full is at least required for p2m_mem_paging_drop_page(), so that the page gets informed about all gfns from decrease_reservation. > With the pager itself generating events, and foreign mappings generating > events, you'll end up putting dom0 vcpu's in a waitqueue. This will > basically deadlock the host. Those vcpus can not go to sleep and my change handles that case. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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