Linus,
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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