kvm: KVM_SET_TSS_ADDR need to be called before entering vcpu kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.15.0-rc2-mm1+ #39 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff8801db207ca8 EFLAGS: 00010006 RAX: ffffffff8622f380 RBX: 00000000001606f0 RCX: ffffffff811a2d22 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff8801db207ca8 R08: 0000000000000001 R09: ffff88021fff8008 R10: ffff88021fff8010 R11: ffff88021fff801d R12: 0000000000000006 R13: ffffffff8622f380 R14: ffff8801db21a130 R15: ffff8801db21a130 FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efec28b8000 CR3: 0000000006225002 CR4: 00000000001626f0 Call Trace: __write_cr4 arch/x86/include/asm/paravirt.h:76 [inline] __cr4_set arch/x86/include/asm/tlbflush.h:252 [inline] cr4_clear_bits arch/x86/include/asm/tlbflush.h:275 [inline] kvm_cpu_vmxoff arch/x86/kvm/vmx.c:3582 [inline] hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3588 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:7969 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3283 flush_smp_call_function_queue+0x1f4/0x570 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x30 kernel/smp.c:192 smp_call_function_single_interrupt+0x103/0x640 arch/x86/kernel/smp.c:295 call_function_single_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:942 RIP: 0010:native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54 RSP: 0018:ffffffff86207d08 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff04 RAX: dffffc0000000000 RBX: 1ffffffff0c40fa4 RCX: 0000000000000000 RDX: 1ffffffff0c59734 RSI: 0000000000000001 RDI: ffffffff862cb9a0 RBP: ffffffff86207d08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffffff86207dc0 R14: ffffffff869eb920 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:93 [inline] default_idle+0xbf/0x430 arch/x86/kernel/process.c:355 arch_cpu_idle+0xa/0x10 arch/x86/kernel/process.c:346 default_idle_call+0x36/0x90 kernel/sched/idle.c:98 cpuidle_idle_call kernel/sched/idle.c:156 [inline] do_idle+0x24a/0x3b0 kernel/sched/idle.c:246 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:351 rest_init+0xed/0xf0 init/main.c:436 start_kernel+0x72e/0x754 init/main.c:717 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 Code: 0f 1f 80 00 00 00 00 55 48 89 e5 0f 20 d8 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 0f 22 df 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 <0f> 22 e7 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 44 0f 20 c0 5d RIP: native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: ffff8801db207ca8 ---[ end trace 5071d8b56415ded1 ]---