Am Thu, 6 Sep 2018 14:45:57 -0400 schrieb Boris Ostrovsky <boris.ostrov...@oracle.com>:
> On 09/06/2018 02:37 AM, Olaf Hering wrote: > > The command 'xl vcpu-set 0 0', issued in dom0, will crash dom0: > > This happens because handle_vcpu_hotplug_event is called twice. In the > > first iteration cpu_present is still true, in the second iteration > > cpu_present is false which causes get_cpu_device to return NULL. > > In case of cpu#0, cpu_online is apparently always true. > I think we should check both this and num_online_cpus() != 0. This can not possibly help. cpu#0 is the first one that goes offline. IF cpu0_hotpluggable is broken, then only "if (!cpu) return;" can help. Olaf
pgpq2mLYOekTt.pgp
Description: Digitale Signatur von OpenPGP
_______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
