watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.3:32174] Modules linked in: irq event stamp: 43854 hardirqs last enabled at (43853): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 hardirqs last disabled at (43854): [] idtentry_enter_cond_rcu+0x1d/0x50 arch/x86/entry/common.c:607 softirqs last enabled at (36946): [] __do_softirq+0x748/0xa60 kernel/softirq.c:319 softirqs last disabled at (36901): [] asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 CPU: 1 PID: 32174 Comm: syz-executor.3 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:csd_lock_wait kernel/smp.c:108 [inline] RIP: 0010:smp_call_function_single+0x192/0x4f0 kernel/smp.c:382 Code: 10 8b 7c 24 1c 48 8d 74 24 40 48 89 44 24 50 48 8b 44 24 08 48 89 44 24 58 e8 fa f9 ff ff 41 89 c5 eb 07 e8 f0 ff 0a 00 f3 90 <44> 8b 64 24 48 31 ff 41 83 e4 01 44 89 e6 e8 5b fc 0a 00 45 85 e4 RSP: 0018:ffffc9000871faa0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 1ffff920010e3f58 RCX: ffffffff8168b785 RDX: ffff8880448cc500 RSI: ffffffff8168b770 RDI: 0000000000000005 RBP: ffffc9000871fb68 R08: 0000000000000001 R09: ffff8880ae636dc7 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: ffffc9000871fc88 FS: 0000000002aec940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fc23000 CR3: 0000000044047000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: task_function_call+0xd7/0x160 kernel/events/core.c:116 event_function_call+0x20a/0x420 kernel/events/core.c:283 perf_remove_from_context+0x9b/0x1c0 kernel/events/core.c:2338 perf_event_release_kernel+0x485/0xe00 kernel/events/core.c:4918 perf_release+0x33/0x40 kernel/events/core.c:5014 __fput+0x33c/0x880 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:135 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:216 [inline] __prepare_exit_to_usermode+0x1e9/0x1f0 arch/x86/entry/common.c:246 do_syscall_64+0x6c/0xe0 arch/x86/entry/common.c:368 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x416721 Code: Bad RIP value. RSP: 002b:00007ffd3ab13320 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416721 RDX: 0000001b2fc20000 RSI: 0000000000001984 RDI: 0000000000000003 RBP: 0000000000000001 R08: 000000008f953983 R09: 000000008f953987 R10: 00007ffd3ab13410 R11: 0000000000000293 R12: 000000000078c900 R13: 000000000078c900 R14: ffffffffffffffff R15: 000000000078bfac Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 32206 Comm: syz-executor.1 Not tainted 5.8.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:91 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:108 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:134 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:165 [inline] RIP: 0010:check_memory_region_inline mm/kasan/generic.c:183 [inline] RIP: 0010:check_memory_region+0xde/0x180 mm/kasan/generic.c:192 Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c RSP: 0018:ffffc90000007b70 EFLAGS: 00000046 RAX: fffffbfff18b1f45 RBX: fffffbfff18b1f46 RCX: ffffffff8159ac8e RDX: fffffbfff18b1f46 RSI: 0000000000000008 RDI: ffffffff8c58fa28 RBP: fffffbfff18b1f45 R08: 0000000000000000 R09: ffffffff8c58fa2f R10: fffffbfff18b1f45 R11: 0000000000000000 R12: ffff888089930280 R13: ffff888089930b72 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f77044b9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ca84fa38d8 CR3: 00000000473ab000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:56 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline] hlock_class kernel/locking/lockdep.c:179 [inline] __lock_acquire+0xc1e/0x56e0 kernel/locking/lockdep.c:4377 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x5b/0x80 kernel/locking/spinlock.c:167 __run_hrtimer kernel/time/hrtimer.c:1524 [inline] __hrtimer_run_queues+0x252/0xfc0 kernel/time/hrtimer.c:1584 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] __sysvec_apic_timer_interrupt+0x142/0x5e0 arch/x86/kernel/apic/apic.c:1097 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] sysvec_apic_timer_interrupt+0xe0/0x120 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:765 [inline] RIP: 0010:on_each_cpu+0x149/0x240 kernel/smp.c:702 Code: 00 fc ff df 48 c1 e8 03 80 3c 10 00 0f 85 e6 00 00 00 48 83 3d 57 12 4c 08 00 0f 84 af 00 00 00 e8 6c e9 0a 00 48 89 df 57 9d <0f> 1f 44 00 00 e8 5d e9 0a 00 bf 01 00 00 00 e8 83 a4 e6 ff 31 ff RSP: 0018:ffffc90001987d70 EFLAGS: 00000212 RAX: 000000000000021c RBX: 0000000000000212 RCX: ffffc900049d9000 RDX: 0000000000040000 RSI: ffffffff8168cdf4 RDI: 0000000000000212 RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffc90001987ed0 R15: ffffffffa0fc1ec8 clock_was_set+0x18/0x20 kernel/time/hrtimer.c:872 do_settimeofday64 kernel/time/timekeeping.c:1257 [inline] do_settimeofday64+0x350/0x4e0 kernel/time/timekeeping.c:1223 do_sys_settimeofday64 kernel/time/time.c:195 [inline] do_sys_settimeofday64+0x1de/0x260 kernel/time/time.c:169 __do_sys_clock_settime kernel/time/posix-timers.c:1079 [inline] __se_sys_clock_settime kernel/time/posix-timers.c:1067 [inline] __x64_sys_clock_settime+0x197/0x260 kernel/time/posix-timers.c:1067 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb29 Code: Bad RIP value. RSP: 002b:00007f77044b8c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e3 RAX: ffffffffffffffda RBX: 00000000004db560 RCX: 000000000045cb29 RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000000 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 000000000000007b R14: 00000000004c34ac R15: 00007f77044b96d4