kvm [3154]: vcpu0, guest rIP: 0x9115 Hyper-V uhandled wrmsr: 0x40000020 data 0x0
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: 1 PID: 3135 Comm: udevd Not tainted 4.15.0-rc4-next-20171221+ #78
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:ffff8801db307ca8 EFLAGS: 00010006
RAX: ffff8801cba14580 RBX: 00000000001606e0 RCX: ffffffff811a47f2
RDX: 0000000000010000 RSI: 0000000000000000 RDI: 00000000001606e0
RBP: ffff8801db307ca8 R08: 0000000000000000 R09: 1ffff1003976bd87
R10: ffff8801cbb5ec00 R11: 0000000000000002 R12: 0000000000000006
R13: ffff8801cba14580 R14: ffff8801db31a130 R15: ffff8801db31a130
FS:  00007f1f4b0877a0(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1f4b08e000 CR3: 00000001cbb61001 CR4: 00000000001626e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __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:3737 [inline]
 hardware_disable+0x34a/0x4b0 arch/x86/kvm/vmx.c:3743
 kvm_arch_hardware_disable+0x35/0xd0 arch/x86/kvm/x86.c:8110
 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
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:777 [inline]
RIP: 0010:lock_is_held_type+0x18b/0x210 kernel/locking/lockdep.c:3954
RSP: 0018:ffff8801cbb5ec40 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04
RAX: dffffc0000000000 RBX: 0000000000000286 RCX: 0000000000400000
RDX: 1ffffffff0c990a5 RSI: ffffffff86540c60 RDI: 0000000000000286
RBP: ffff8801cbb5ec60 R08: 0000000000000000 R09: 1ffff1003976bd87
R10: ffff8801cbb5ec00 R11: 0000000000000002 R12: ffff8801cba14580
R13: 0000000000000000 R14: 0000000000001063 R15: ffff8801cbb5ee98
 lock_is_held include/linux/lockdep.h:344 [inline]
 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline]
 ___might_sleep+0x35e/0x470 kernel/sched/core.c:6026
 __might_sleep+0x95/0x190 kernel/sched/core.c:6014
 prepare_alloc_pages mm/page_alloc.c:4195 [inline]
 __alloc_pages_nodemask+0x402/0xd80 mm/page_alloc.c:4233
 alloc_pages_vma+0xc8/0x4b0 mm/mempolicy.c:2019
 shmem_alloc_page+0x17c/0x2d0 mm/shmem.c:1465
 shmem_alloc_and_acct_page+0x1a3/0x740 mm/shmem.c:1490
 shmem_getpage_gfp+0x61f/0x37b0 mm/shmem.c:1765
 shmem_getpage mm/shmem.c:131 [inline]
 shmem_write_begin+0xf7/0x1a0 mm/shmem.c:2373
 generic_perform_write+0x28f/0x600 mm/filemap.c:3138
 __generic_file_write_iter+0x366/0x5b0 mm/filemap.c:3263
 generic_file_write_iter+0x399/0x790 mm/filemap.c:3291
 call_write_iter include/linux/fs.h:1776 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x684/0x970 fs/read_write.c:482
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 entry_SYSCALL_64_fastpath+0x1f/0x96
RIP: 0033:0x7f1f4a78f370
RSP: 002b:00007ffe23dfa658 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001984e80 RCX: 00007f1f4a78f370
RDX: 000000000000001b RSI: 00007f1f4b08e000 RDI: 0000000000000005
RBP: 00007ffe23dfa610 R08: 00007f1f4b0877a0 R09: 0000000001826460
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe23dfa620 R14: 000000000042073c R15: ffffffffffffff00
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: ffff8801db307ca8
---[ end trace 989931a5263b54eb ]---