dlm: non-version read from control device 36
WARNING: CPU: 0 PID: 15098 at arch/x86/kvm/mmu.c:830 mmu_spte_clear_track_bits+0x45f/0x520 arch/x86/kvm/mmu.c:830
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 15098 Comm: syz-executor2 Not tainted 4.20.0+ #176
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d3/0x2c6 lib/dump_stack.c:113
 panic+0x2ad/0x55f kernel/panic.c:189
 __warn.cold.8+0x20/0x52 kernel/panic.c:544
 report_bug+0x254/0x2d0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:mmu_spte_clear_track_bits+0x45f/0x520 arch/x86/kvm/mmu.c:830
Code: 40 ff ff ff 31 ff 44 89 fe 48 ba 00 00 00 00 00 fc ff df c6 04 10 f8 e8 ff a9 70 00 45 85 ff 0f 85 65 fd ff ff e8 e1 a8 70 00 <0f> 0b e9 59 fd ff ff e8 d5 a8 70 00 4c 89 ef e8 3d 32 f7 ff 31 f6
RSP: 0018:ffff888029b36860 EFLAGS: 00010293
RAX: ffff8880a38c0600 RBX: 400000004ecc9c77 RCX: ffffffff81114351
RDX: 0000000000000000 RSI: ffffffff8111435f RDI: 0000000000000005
RBP: ffff888029b36978 R08: ffff8880a38c0600 R09: fffff9400027664e
R10: fffff9400027664e R11: ffffea00013b3277 R12: 1ffff11005366d0e
R13: 000000000004ecc9 R14: ffff888029b36950 R15: 0000000000000000
 drop_spte+0x24/0x220 arch/x86/kvm/mmu.c:1468
 mmu_page_zap_pte+0x2d3/0x3a0 arch/x86/kvm/mmu.c:2613
 kvm_mmu_page_unlink_children arch/x86/kvm/mmu.c:2635 [inline]
 kvm_mmu_prepare_zap_page+0x1f9/0x1530 arch/x86/kvm/mmu.c:2679
 kvm_zap_obsolete_pages arch/x86/kvm/mmu.c:5843 [inline]
 kvm_mmu_invalidate_zap_all_pages+0x348/0x7b0 arch/x86/kvm/mmu.c:5884
 kvm_arch_flush_shadow_all+0x15/0x20 arch/x86/kvm/x86.c:9456
 kvm_mmu_notifier_release+0x59/0x90 arch/x86/kvm/../../../virt/kvm/kvm_main.c:494
 __mmu_notifier_release+0x1e9/0x630 mm/mmu_notifier.c:68
 mmu_notifier_release include/linux/mmu_notifier.h:232 [inline]
 exit_mmap+0xa1/0x590 mm/mmap.c:3094
 __mmput kernel/fork.c:1051 [inline]
 mmput+0x247/0x610 kernel/fork.c:1072
 exit_mm kernel/exit.c:545 [inline]
 do_exit+0xdeb/0x2620 kernel/exit.c:854
 do_group_exit+0x177/0x440 kernel/exit.c:970
 get_signal+0x8b0/0x1980 kernel/signal.c:2517
 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816
 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f603f045c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000013 RBX: 0000000000000003 RCX: 0000000000457ec9
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000012
RBP: 000000000073c220 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f603f0466d4
R13: 00000000004c09d4 R14: 00000000004d2110 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..