Messages in this thread | | | From | Ian Campbell <> | Date | Sun, 10 Jan 2010 14:05:35 +0000 | Subject | Re: 2.6.33-rc2: Xen/Guest switching to user mode with no user page tables |
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On Sun, 2010-01-10 at 16:49 +0300, Cyrill Gorcunov wrote: > On Sun, Jan 10, 2010 at 04:36:28PM +0300, Cyrill Gorcunov wrote: > ... > > > > > > With just the CS RPL fix below I see a GPF at kernel_thread_helper with > > > SS=3 (hence my hypothesis about NULL selectors and non-zero RPL above). > > > With both the SS and CS fixes things work fine. > > > > any of CS,SS loaded with NULL descriptor should lead to #GP > > > > though SS with RPL=0 is allowed to be NULL descriptor in 64bit mode
yes, that's what I meant.
Ian.
-- Ian Campbell
Tussman's Law: Nothing is as inevitable as a mistake whose time has come.
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