[GIT PULL] KVM fixes for 2.6.30-rc7

From: Avi Kivity
Date: Mon May 25 2009 - 13:17:00 EST


The upcoming F11 release has uncovered a couple of bugs relating to the reloading to the PDPTRs in PAE guests. While the bugs are not recent regressions, the switch to PAE as a default kernel, coupled with the use of the fancy priority inherited futexes in audio code, cause the bug to start affecting people.

Futexes enter into the picture here as their initialization code deliberately writes into the NULL pointer. If the PDPTRs have not been correctly reloaded, this write hits the low kernel mappings, and the write succeeds where the code expects it to fail, disabling the pi futex subsystem.

So please pull from

git://git.kernel.org/pub/scm/virt/kvm/kvm.git kvm-updates/2.6.30

To get

Avi Kivity (2):
KVM: Make paravirt tlb flush also reload the PAE PDPTRs
KVM: Fix PDPTR reloading on CR4 writes

arch/x86/kvm/mmu.c | 3 +--
arch/x86/kvm/x86.c | 6 +++++-
2 files changed, 6 insertions(+), 3 deletions(-)

error compiling committee.c: too many arguments to function

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