watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor5:9672] Modules linked in: irq event stamp: 10743570 hardirqs last enabled at (10743569): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (10743570): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (716132): [] __do_softirq+0x74d/0xa74 kernel/softirq.c:318 softirqs last disabled at (715625): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (715625): [] irq_exit+0x1d6/0x210 kernel/softirq.c:412 CPU: 0 PID: 9672 Comm: syz-executor5 Not tainted 4.19.0-rc1-next-20180831+ #53 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x418/0x5c0 kernel/smp.c:302 Code: 89 d8 41 c6 04 24 04 48 c1 e8 03 42 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 35 01 00 00 41 0f b6 14 24 44 8b 7c 24 78 84 d2 74 09 <80> fa 03 0f 8e 02 01 00 00 44 89 bc 24 e0 00 00 00 41 83 e7 01 31 RSP: 0018:ffff88018e886d60 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: ffff88018e886dd8 RCX: ffffc9001311e000 RDX: 0000000000000004 RSI: ffffffff8170832b RDI: 0000000000000005 RBP: ffff88018e886ea8 R08: ffff88018df64340 R09: ffffed003b625b98 R10: ffffed003b625b98 R11: ffff8801db12dcc7 R12: ffffed0031d10dc8 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000003 FS: 00007f5d76a36700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002025c000 CR3: 0000000191f1c000 CR4: 00000000001426f0 Call Trace: smp_call_function_many+0x884/0xa40 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0x46/0x1d0 kernel/smp.c:604 text_poke_bp+0xc0/0x16a arch/x86/kernel/alternative.c:803 __jump_label_transform.isra.0+0x478/0x8f0 arch/x86/kernel/jump_label.c:105 arch_jump_label_transform+0x2f/0x40 arch/x86/kernel/jump_label.c:113 __jump_label_update+0x16e/0x1a0 kernel/jump_label.c:375 jump_label_update+0x151/0x2e0 kernel/jump_label.c:760 static_key_slow_inc_cpuslocked+0x341/0x430 kernel/jump_label.c:110 static_key_slow_inc+0x1a/0x30 kernel/jump_label.c:125 tracepoint_add_func kernel/tracepoint.c:268 [inline] tracepoint_probe_register_prio+0x906/0xad0 kernel/tracepoint.c:328 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:348 trace_event_reg+0x19a/0x350 kernel/trace/trace_events.c:306 perf_trace_event_reg kernel/trace/trace_event_perf.c:124 [inline] perf_trace_event_init+0x4fe/0x990 kernel/trace/trace_event_perf.c:199 perf_trace_init+0x186/0x250 kernel/trace/trace_event_perf.c:223 perf_tp_event_init+0xa6/0x120 kernel/events/core.c:8345 perf_try_init_event+0x137/0x2f0 kernel/events/core.c:9739 perf_init_event kernel/events/core.c:9777 [inline] perf_event_alloc.part.93+0x12a0/0x33c0 kernel/events/core.c:10043 perf_event_alloc kernel/events/core.c:10399 [inline] __do_sys_perf_event_open+0xa9c/0x2f30 kernel/events/core.c:10500 __se_sys_perf_event_open kernel/events/core.c:10389 [inline] __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10389 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5d76a35c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f5d76a366d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002025c000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d39a8 R14: 00000000004c85bc R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9665 Comm: syz-executor6 Not tainted 4.19.0-rc1-next-20180831+ #53 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trace_hardirqs_off_caller+0x72/0x2b0 kernel/trace/trace_preemptirq.c:62 Code: 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 78 f6 f9 ff 31 ff 65 44 8b 35 6e aa 7f 7e <44> 89 f6 e8 76 f7 f9 ff 45 85 f6 75 2e e8 5c f6 f9 ff 31 ff 65 44 RSP: 0018:ffff88018ed8ec68 EFLAGS: 00000046 RAX: ffff88018ee44040 RBX: 1ffff10031db1d90 RCX: ffffffff86e00a07 RDX: 0000000040000002 RSI: ffffffff8182d178 RDI: 0000000000000000 RBP: ffff88018ed8ed08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff86e01166 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f13b2b60700(0000) GS:ffff8801db100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30524000 CR3: 00000001d3728000 CR4: 00000000001426e0 Call Trace: trace_hardirqs_off_thunk+0x1a/0x1c error_entry+0x76/0xd0 arch/x86/entry/entry_64.S:1265 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:142 [inline] RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x18f/0x9f0 kernel/locking/lockdep.c:3919 Code: fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2f 06 00 00 41 c7 87 3c 08 00 00 01 00 00 00 cc <1f> 44 00 00 65 8b 05 d6 e1 a1 7e 89 c0 48 0f a3 05 bc 89 50 07 0f RSP: 0018:ffff88018ed8ee28 EFLAGS: 00000046 RAX: 0000000000000007 RBX: 1ffff10031db1dca RCX: ffffffff810ed679 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88018ee4487c RBP: ffff88018ed8ef58 R08: 0000000000000000 R09: 0000000000000003 R10: ffff88018ee448f8 R11: 5a5c4089353ea96f R12: ffff88018ed8ef30 R13: ffffc90001dc5da8 R14: ffffc90001dc57e0 R15: ffff88018ee44040 rcu_lock_release include/linux/rcupdate.h:249 [inline] srcu_read_unlock include/linux/srcu.h:223 [inline] kvm_arch_vcpu_put+0x1fc/0x420 arch/x86/kvm/x86.c:3180 kvm_sched_out+0x91/0xb0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3985 __fire_sched_out_preempt_notifiers kernel/sched/core.c:2497 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:2505 [inline] prepare_task_switch kernel/sched/core.c:2611 [inline] context_switch kernel/sched/core.c:2790 [inline] __schedule+0xf1e/0x1df0 kernel/sched/core.c:3473 preempt_schedule_common+0x22/0x60 kernel/sched/core.c:3597 _cond_resched+0x1d/0x30 kernel/sched/core.c:4963 prepare_alloc_pages mm/page_alloc.c:4332 [inline] __alloc_pages_nodemask+0x496/0xd10 mm/page_alloc.c:4372 alloc_pages_current+0x10c/0x210 mm/mempolicy.c:2093 alloc_pages include/linux/gfp.h:509 [inline] __get_free_pages+0xc/0x40 mm/page_alloc.c:4422 mmu_topup_memory_cache_page arch/x86/kvm/mmu.c:945 [inline] mmu_topup_memory_caches+0x1f8/0x3a0 arch/x86/kvm/mmu.c:967 kvm_mmu_load+0x21/0x1260 arch/x86/kvm/mmu.c:4957 kvm_mmu_reload arch/x86/kvm/mmu.h:86 [inline] vcpu_enter_guest+0x3c8b/0x61a0 arch/x86/kvm/x86.c:7495 vcpu_run arch/x86/kvm/x86.c:7693 [inline] kvm_arch_vcpu_ioctl_run+0x373/0x16d0 arch/x86/kvm/x86.c:7870 kvm_vcpu_ioctl+0x7b8/0x1280 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2590 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f13b2b5fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f13b2b606d4 RCX: 0000000000457099 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000007 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf460 R14: 00000000004c5786 R15: 0000000000000000