general protection fault: 0000 [#1] SMP Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 5 Comm: kworker/u4:0 Not tainted 4.15.0-rc3-next-20171214+ #67 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:native_write_cr4+0x4/0x10 arch/x86/include/asm/special_insns.h:76 RSP: 0018:ffff88021fc03f20 EFLAGS: 00010006 RAX: ffff880216980140 RBX: 00000000001606f0 RCX: ffffffff8108d968 RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606f0 RBP: ffff88021fc03f20 R08: 0000000000000001 R09: 0000000000000002 R10: ffffc90000c8fce8 R11: 0000000000000002 R12: 0000000000000006 R13: ffff880216980140 R14: ffffffff81026eb0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff8709df000 CR3: 000000000301e001 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+0x1a0/0x210 arch/x86/kvm/vmx.c:3588 kvm_arch_hardware_disable+0x14/0x50 arch/x86/kvm/x86.c:7983 hardware_disable_nolock+0x30/0x40 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3291 flush_smp_call_function_queue+0x95/0x1e0 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x30 kernel/smp.c:192 smp_call_function_single_interrupt+0x42/0x240 arch/x86/kernel/smp.c:295 call_function_single_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:942 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline] RIP: 0010:lock_is_held_type+0x69/0x90 kernel/locking/lockdep.c:3954 RSP: 0018:ffffc90000c8fd18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 RAX: 0000000000000000 RBX: ffff880216980140 RCX: ffffffff8218803f RDX: 0000000000000000 RSI: ffffffff83080720 RDI: 0000000000000286 RBP: ffffc90000c8fd28 R08: 0000000000000000 R09: 0000000000000002 R10: ffffc90000c8fce8 R11: 0000000000000002 R12: 0000000000000286 R13: 0000000000000000 R14: ffff8802148f0e50 R15: ffffffff8218803a lock_is_held include/linux/lockdep.h:344 [inline] ___might_sleep+0x1d7/0x260 kernel/sched/core.c:6026 inet_twsk_purge+0x142/0x300 net/ipv4/inet_timewait_sock.c:265 dccp_v6_exit_batch+0x1a/0x20 net/dccp/ipv6.c:1112 ops_exit_list.isra.6+0x70/0x80 net/core/net_namespace.c:145 cleanup_net+0x210/0x350 net/core/net_namespace.c:484 process_one_work+0x288/0x7a0 kernel/workqueue.c:2112 worker_thread+0x43/0x4d0 kernel/workqueue.c:2246 kthread+0x149/0x170 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524 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: ffff88021fc03f20 ---[ end trace 57a5895c8048827c ]---