kvm: vcpu 0: requested 34784 ns lapic timer period limited to 200000 ns kvm: vcpu 0: requested 34784 ns lapic timer period limited to 200000 ns kvm: vcpu 0: requested 34784 ns lapic timer period limited to 200000 ns kvm: vcpu 0: requested 34784 ns lapic timer period limited to 200000 ns kvm: vcpu 0: requested 34784 ns lapic timer period limited to 200000 ns watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.4:8634] Modules linked in: irq event stamp: 54608 hardirqs last enabled at (54607): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (54608): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (23390): [] __do_softirq+0x67f/0x993 kernel/softirq.c:319 softirqs last disabled at (23347): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (23347): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 CPU: 0 PID: 8634 Comm: syz-executor.4 Not tainted 4.20.0-rc6+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x169/0x360 kernel/smp.c:302 Code: 00 45 85 ff 0f 84 85 00 00 00 44 89 e7 4c 89 f1 4c 89 ea 48 8d 74 24 40 e8 04 fb ff ff 41 89 c4 8b 44 24 58 a8 01 74 0b f3 90 <8b> 54 24 58 83 e2 01 75 f5 bf 01 00 00 00 e8 f4 2d ea ff 65 8b 15 RSP: 0018:ffff888092477440 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 1ffff1101248ee8c RCX: 0000000000000830 RDX: 0000000000000001 RSI: 00000000000000fb RDI: 0000000000000830 RBP: ffff888092477508 R08: ffffed1015d65bc9 R09: ffffed1015d65bc8 R10: ffffed1015d65bc8 R11: ffff8880aeb2de47 R12: 0000000000000000 R13: ffffffff8122d9e0 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f19260e9700(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000000a4e62000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smp_call_function_many+0x512/0x790 kernel/smp.c:434 smp_call_function+0x36/0x60 kernel/smp.c:492 on_each_cpu+0x2a/0x180 kernel/smp.c:604 text_poke_bp+0xe0/0x195 arch/x86/kernel/alternative.c:808 __jump_label_transform+0x25d/0x350 arch/x86/kernel/jump_label.c:93 arch_jump_label_transform+0x2a/0x40 arch/x86/kernel/jump_label.c:101 __jump_label_update+0xf2/0x180 kernel/jump_label.c:391 jump_label_update+0x15c/0x330 kernel/jump_label.c:754 static_key_slow_inc_cpuslocked+0x150/0x1f0 kernel/jump_label.c:131 static_key_slow_inc+0x15/0x20 kernel/jump_label.c:146 kvm_create_lapic+0x153/0x1d0 arch/x86/kvm/lapic.c:2284 kvm_arch_vcpu_init+0x5b6/0x7b0 arch/x86/kvm/x86.c:8923 kvm_vcpu_init+0x269/0x350 arch/x86/kvm/../../../virt/kvm/kvm_main.c:315 vmx_create_vcpu+0xf7/0x1a30 arch/x86/kvm/vmx.c:11530 kvm_arch_vcpu_create+0x52/0xd0 arch/x86/kvm/x86.c:8615 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2482 [inline] kvm_vm_ioctl+0x45c/0x1680 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2985 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x199/0x10d0 fs/ioctl.c:696 ksys_ioctl+0x62/0x90 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x6e/0xb0 fs/ioctl.c:718 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457f89 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f19260e8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f19260e96d4 R13: 00000000004c09e5 R14: 00000000004d2758 R15: 00000000ffffffff Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8639 Comm: syz-executor.2 Not tainted 4.20.0-rc6+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rep_nop arch/x86/include/asm/processor.h:660 [inline] RIP: 0010:cpu_relax arch/x86/include/asm/processor.h:665 [inline] RIP: 0010:mutex_spin_on_owner+0x233/0x320 kernel/locking/mutex.c:552 Code: c3 be 08 00 00 00 4c 89 ef e8 59 d0 45 00 4c 89 e8 48 c1 e8 03 42 80 3c 30 00 0f 85 e8 00 00 00 49 8b 45 00 a8 01 75 93 f3 90 3a fe ff ff 0f 0b e8 f1 48 07 00 84 c0 0f 85 13 fe ff ff 48 c7 RSP: 0018:ffff888078e27628 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffff888078e27660 R08: fffffbfff103ef31 R09: fffffbfff103ef30 R10: fffffbfff103ef30 R11: ffffffff881f7987 R12: fffffbfff1023628 R13: ffffffff881f7980 R14: dffffc0000000000 R15: ffff8880a41fa2c0 FS: 00007f73db1b1700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004cddd0 CR3: 000000007dba1000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mutex_optimistic_spin kernel/locking/mutex.c:646 [inline] __mutex_lock_common kernel/locking/mutex.c:928 [inline] __mutex_lock+0xc64/0x11f0 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 jump_label_lock kernel/jump_label.c:28 [inline] static_key_slow_inc_cpuslocked+0xc6/0x1f0 kernel/jump_label.c:128 static_key_slow_inc+0x15/0x20 kernel/jump_label.c:146 kvm_create_lapic+0x153/0x1d0 arch/x86/kvm/lapic.c:2284 kvm_arch_vcpu_init+0x5b6/0x7b0 arch/x86/kvm/x86.c:8923 kvm_vcpu_init+0x269/0x350 arch/x86/kvm/../../../virt/kvm/kvm_main.c:315 vmx_create_vcpu+0xf7/0x1a30 arch/x86/kvm/vmx.c:11530 kvm_arch_vcpu_create+0x52/0xd0 arch/x86/kvm/x86.c:8615 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:2482 [inline] kvm_vm_ioctl+0x45c/0x1680 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2985 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x199/0x10d0 fs/ioctl.c:696 ksys_ioctl+0x62/0x90 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x6e/0xb0 fs/ioctl.c:718 do_syscall_64+0xd6/0x4e0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457f89 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f73db1b0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f89 RDX: 0000000000000000 RSI: 000000000000ae41 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f73db1b16d4 R13: 00000000004c09e5 R14: 00000000004d2758 R15: 00000000ffffffff