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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boot	x86, efi stub: Add .reloc section back into image	2012-06-07 09:52:33 -07:00
configs	x86/kconfig: Remove CONFIG_TR=y from the defconfigs	2012-03-24 08:18:03 +01:00
crypto	crypto: aesni-intel - fix unaligned cbc decrypt for x86-32	2012-05-31 20:53:22 +10:00
ia32	x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery	2012-06-14 18:16:04 -07:00
include/asm	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-29 10:29:54 -07:00
kernel	Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux	2012-06-30 11:11:58 -07:00
kvm	KVM: MMU: fix shrinking page from the empty mmu	2012-07-03 17:31:50 -03:00
lguest	lguest: Make sure interrupt is allocated ok by lguest_setup_irq	2012-01-12 15:44:47 +10:30
lib	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-29 10:29:54 -07:00
math-emu	x86: Rename trap_no to trap_nr in thread_struct	2012-03-13 06:24:09 +01:00
mm	x86/mm: Fix some kernel-doc warnings	2012-06-11 10:54:45 +02:00
net	bpf jit: Let the x86 jit handle negative offsets	2012-04-03 18:01:41 -04:00
oprofile	x86: Factor out TIF_IA32 from 32-bit address space	2012-02-20 12:48:46 -08:00
pci	Features:	2012-05-24 16:02:08 -07:00
platform	kmsg - kmsg_dump() use iterator to receive log buffer content	2012-06-15 14:53:59 -07:00
power	x86, kvm: Call restore_sched_clock_state() only after %gs is initialized	2012-04-02 13:53:00 +02:00
realmode	x86, realmode: Move end signature into header.S	2012-05-21 00:02:45 -07:00
syscalls	syscalls, x86: add __NR_kcmp syscall	2012-05-31 17:49:32 -07:00
tools	x86/decoder: Fix bsr/bsf/jmpe decoding with operand-size prefix	2012-06-06 08:54:18 +02:00
um	x86, um: Correct syscall table type attributes breaking gcc 4.8	2012-06-09 12:51:09 -07:00
vdso	Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-03-29 18:12:23 -07:00
video	x86: Use vga_default_device() when determining whether an fb is primary	2012-04-24 09:50:17 +01:00
xen	Five bug-fixes:	2012-06-15 17:17:15 -07:00
.gitignore	x86/kprobes: Add arch/x86/tools/insn_sanity to .gitignore	2012-01-16 08:21:59 +01:00
Kbuild	x86, realmode: realmode.bin infrastructure	2012-05-08 11:41:48 -07:00
Kconfig	x86, efi: Add EFI boot stub documentation	2012-06-01 09:11:41 -07:00
Kconfig.cpu	x86: Tighten dependencies of CPU_SUP_*_32	2012-03-08 10:57:34 +01:00
Kconfig.debug	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-01-11 19:13:40 -08:00
Makefile	md updates for 3.5	2012-05-23 17:08:40 -07:00
Makefile.um	um: fix linker script generation	2012-04-09 13:59:00 -04:00
Makefile_32.cpu	x86, cpu: Move AMD Elan Kconfig under "Processor family"	2011-04-08 13:01:25 -07:00