On Wed, Feb 06, 2008 at 12:21:30PM -0800, H. Peter Anvin wrote: > Neil Horman wrote: > >Can an APIC accept an NMI while already handling an NMI? I didn't think > >they > >would interrupt one another, but rather, pend until such time as the > >previous > >NMI was cleared > > The CPU certainly won't (there is a hidden flag that's cleared on IRET > which disables NMI; it's possible to re-enable NMI by executing a dummy > IRET inside the NMI handler.) > > -hpa So that would be another solution I would expect. Would you rather I investigate that, or is the proposed solution more reasonable? Neil -- /*************************************************** *Neil Horman *Software Engineer *Red Hat, Inc. *nhorman at redhat.com *gpg keyid: 1024D / 0x92A74FA1 *http://pgp.mit.edu ***************************************************/
