Andrew Cooper <andrew.coop...@citrix.com> writes: > On 02/02/15 10:47, Vitaly Kuznetsov wrote: >> Hi Konrad, >> >> I just hit an issue with PVHVM guests after save/restore (or migration), >> if a PVHVM guest has > 32 VCPUs it hangs. Turns out, you saw it almost a >> year ago and even wrote patches to call VCPUOP_register_vcpu_info after >> resume. Unfortunately these patches never made it to xen/kernel. Do you >> have a plan to pick this up? What were the arguments against your >> suggestion? > > 32 VCPUs is the legacy limit for HVM guests, but should not have any > remaining artefacts these days. > > Do you know why the hang occurs? I can't spot anything in the legacy > migration code which would enforce such a limit. > > What is the subject of the thread you reference so I can search for it? >
Sorry, I should have send the link: http://lists.xen.org/archives/html/xen-devel/2014-04/msg00794.html Konrad's patches: http://lists.xen.org/archives/html/xen-devel/2014-04/msg01199.html The issue is that we don't call VCPUOP_register_vcpu_info after suspend/resume (or migration) and it is mandatory. -- Vitaly _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
