diff options
| author | Xiao Guangrong | 2010-07-10 11:37:56 +0200 |
|---|---|---|
| committer | Avi Kivity | 2010-08-02 05:40:35 +0200 |
| commit | aea924f606c309feead37ab5c43f410a08ff3826 (patch) | |
| tree | 6d409eb035985ebcec3d16b0410706d3e8fcf184 /arch/x86/kvm/x86.c | |
| parent | KVM: Reenter guest after emulation failure if due to access to non-mmio address (diff) | |
| download | kernel-qcow2-linux-aea924f606c309feead37ab5c43f410a08ff3826.tar.gz kernel-qcow2-linux-aea924f606c309feead37ab5c43f410a08ff3826.tar.xz kernel-qcow2-linux-aea924f606c309feead37ab5c43f410a08ff3826.zip | |
KVM: PIT: stop vpit before freeing irq_routing
Fix:
general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
......
Call Trace:
[<ffffffffa0159bd1>] ? kvm_set_irq+0xdd/0x24b [kvm]
[<ffffffff8106ea8b>] ? trace_hardirqs_off_caller+0x1f/0x10e
[<ffffffff813ad17f>] ? sub_preempt_count+0xe/0xb6
[<ffffffff8106d273>] ? put_lock_stats+0xe/0x27
...
RIP [<ffffffffa0159c72>] kvm_set_irq+0x17e/0x24b [kvm]
This bug is triggered when guest is shutdown, is because we freed
irq_routing before pit thread stopped
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index d51eed239b47..d721e2d81a53 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5523,12 +5523,12 @@ static void kvm_free_vcpus(struct kvm *kvm) void kvm_arch_sync_events(struct kvm *kvm) { kvm_free_all_assigned_devices(kvm); + kvm_free_pit(kvm); } void kvm_arch_destroy_vm(struct kvm *kvm) { kvm_iommu_unmap_guest(kvm); - kvm_free_pit(kvm); kfree(kvm->arch.vpic); kfree(kvm->arch.vioapic); kvm_free_vcpus(kvm); |