On 07/14/2014 02:43 PM, Andrew Lutomirski wrote: >> >> That patch is running through my build tests as we speak. I expect to >> push it to tip:x86/urgent in about an hour. > > I think that espfix64 is completely broken on Xen, regardless of the > pud vs pmd issue :( See: > > http://lkml.kernel.org/g/CALCETrWG-dQL8ipJ8cO3wfbYKA=mAv3CS4-1JFwmBXF3pUbAwg@xxxxxxxxxxxxxx > And it is also completely unclear to me if it is actually necessary. Again, I would like to know how the Xen IRET pvop actually handles a 16-bit stack segment. If it restores all of RSP then espfix isn't necessary. -hpa -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html