[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] PML causing race condition during guest bootstorm and host crash on Broadwell cpu.
>>> On 08.02.17 at 15:58, <anshul.makkar@xxxxxxxxxx> wrote: > Code is trying to destroy multiple vcpus held by the domain: > complete_domain_destroy->hvm_vcpu_destroy() for each vcpu. > > In vmx_vcpu_destroy, we have a call for vmx_vcpu_disable_pml which leads > to a race while destroying foreign vcpu's with other domains rebooting > on the same vcpus . > > With a single domain reboot, no race is observed. > > Commit e18d4274772e52ac81fda1acb246d11ef666e5fe causes this race condition. Causes or exposes? I ask because the similar reports we have are all on 4.4.x, i.e. no PML code there at all. Jan _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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