Xiao Guangrong 85b7059169 KVM: MMU: fix shrinking page from the empty mmu ... Fix: [ 3190.059226] BUG: unable to handle kernel NULL pointer dereference at (null) [ 3190.062224] IP: [<ffffffffa02aac66>] mmu_page_zap_pte+0x10/0xa7 [kvm] [ 3190.063760] PGD 104f50067 PUD 112bea067 PMD 0 [ 3190.065309] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 3190.066860] CPU 1 [ ...... ] [ 3190.109629] Call Trace: [ 3190.111342] [<ffffffffa02aada6>] kvm_mmu_prepare_zap_page+0xa9/0x1fc [kvm] [ 3190.113091] [<ffffffffa02ab2f5>] mmu_shrink+0x11f/0x1f3 [kvm] [ 3190.114844] [<ffffffffa02ab25d>] ? mmu_shrink+0x87/0x1f3 [kvm] [ 3190.116598] [<ffffffff81150c9d>] ? prune_super+0x142/0x154 [ 3190.118333] [<ffffffff8110a4f4>] ? shrink_slab+0x39/0x31e [ 3190.120043] [<ffffffff8110a687>] shrink_slab+0x1cc/0x31e [ 3190.121718] [<ffffffff8110ca1d>] do_try_to_free_pages This is caused by shrinking page from the empty mmu, although we have checked n_used_mmu_pages, it is useless since the check is out of mmu-lock Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2012-07-03 17:31:50 -03:00
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cpuid.c	KVM: fix cpuid eax for KVM leaf	2012-05-06 15:51:56 +03:00
cpuid.h	KVM: SVM: Add support for AMD's OSVW feature in guests	2012-03-05 14:52:21 +02:00
emulate.c	KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()	2012-05-14 11:32:38 +03:00
i8254.c	KVM: x86: Run PIT work in own kthread	2012-04-27 19:40:29 -03:00
i8254.h	KVM: x86: Run PIT work in own kthread	2012-04-27 19:40:29 -03:00
i8259.c	KVM: x86: reset edge sense circuit of i8259 on init	2012-03-05 14:57:30 +02:00
irq.c	KVM: fix typo in copyright notice	2010-10-24 10:53:14 +02:00
irq.h	KVM: Intelligent device lookup on I/O bus	2011-09-25 19:17:59 +03:00
Kconfig	KVM: Introduce direct MSI message injection for in-kernel irqchips	2012-04-24 15:59:47 +03:00
kvm_cache_regs.h	KVM: MMU: Do not unconditionally read PDPTE from guest memory	2011-09-25 19:18:01 +03:00
kvm_timer.h	KVM: emulate lapic tsc deadline timer for guest	2011-10-05 15:34:56 +02:00
lapic.c	KVM: Introduce bitmask for apic attention reasons	2012-04-24 16:36:18 +03:00
lapic.h	KVM: Expose kvm_lapic_local_deliver()	2011-12-27 11:23:39 +02:00
Makefile	KVM: Expose a version 2 architectural PMU to a guests	2011-12-27 11:24:29 +02:00
mmu_audit.c	KVM: MMU: Improve iteration through sptes from rmap	2012-04-08 16:08:27 +03:00
mmu.c	KVM: MMU: fix shrinking page from the empty mmu	2012-07-03 17:31:50 -03:00
mmu.h	KVM: MMU: mmio page fault support	2011-07-24 11:50:40 +03:00
mmutrace.h	KVM: MMU: audit: replace mmu audit tracepoint with jump-label	2011-12-27 11:22:05 +02:00
paging_tmpl.h	KVM: MMU: use page table level macro	2012-04-18 23:35:01 -03:00
pmu.c	KVM: PMU emulation: GLOBAL_CTRL MSR should be enabled on reset	2012-04-10 15:34:10 +03:00
svm.c	KVM: SVM: Auto-load on CPUs with SVM	2012-04-16 20:35:04 -03:00
timer.c	KVM: x86: Simplify kvm timer handler	2011-12-27 11:17:05 +02:00
trace.h	KVM: Use __print_symbolic() for vmexit tracepoints	2011-09-25 19:17:59 +03:00
tss.h	KVM: x86: hardware task switching support	2008-04-27 12:00:39 +03:00
vmx.c	KVM: VMX: Optimize %ds, %es reload	2012-05-16 16:03:19 -03:00
x86.c	Merge branch 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2012-05-24 16:17:30 -07:00
x86.h	KVM: x86: add paging gcc optimization	2012-04-08 14:03:13 +03:00