On 08/07/2017 10:52 AM, Jan Beulich wrote: >>>> Andrew Cooper <andrew.coop...@citrix.com> 08/07/17 4:39 PM >>> >> On 07/08/17 09:18, Jan Beulich wrote: >>> Wouldn't it be sufficient for people running into vector shortage due to >>> sharing to specify "x2apic_phys" on the command line? >> Had XenServer noticed this change in default earlier, I would have >> insisted that you make x2apic_phys the default. > Change in default? About five and a half years ago I did implement cluster > mode properly, but I wasn't able to spot a commit that changed the > default from physical to cluster. > >> On affected systems, problem manifests as an upgrade where the new >> hypervisor doesn't boot. Recovering from this requires human >> intervention during the server boot. > This needs some more explanation: Why would the hypervisor not boot? > Even if you said Dom0 didn't boot, it wouldn't really be clear to me why, > as running out of vectors would likely occur only after critical devices > had their drivers loaded.
If your critical device is a networking card with lots of functions? In my case I had two cards. The first one was plumbed properly but the second failed. It so happened that only the first one was required to boot but I can see that in another configuration an init script might require both to be initialized. -boris _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
