Gerd Hoffmann wrote:
Avi Kivity wrote:
The unshadow-on-userspace-access heuristic is broken. Since it is also
bad for Xenner, try removing the following lines:
spte |= PT_WRITABLE_MASK;
Well, that line should better not be removed. I get a hang otherwise,
guess due to running into a page-fault loop ...
Sorry, that was unintended.
if (user_fault) {
mmu_unshadow(vcpu->kvm, gfn);
goto unshadowed;
}
Deactivating those four lines fixed it.
Yeah, I'll drop them for kvm.git. This never triggered since OSes are
conscientious about scrubbing page tables, and when they do that the
flood detector unshadows the pages.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
