rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): ------------[ cut here ]------------ IRQs not enabled as expected WARNING: CPU: 1 PID: 9134 at kernel/sched/core.c:2675 try_invoke_on_locked_down_task+0x2d6/0x380 kernel/sched/core.c:2675 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9134 Comm: syz-executor.4 Not tainted 5.7.0-syzkaller #0 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+0x128/0x182 lib/dump_stack.c:118 panic+0x22a/0x4e3 kernel/panic.c:221 __warn.cold.10+0x25/0x26 kernel/panic.c:582 report_bug+0x1ad/0x270 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:105 [inline] do_error_trap+0x123/0x210 arch/x86/kernel/traps.c:197 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:216 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:try_invoke_on_locked_down_task+0x2d6/0x380 kernel/sched/core.c:2675 Code: ff d4 41 89 c7 e9 0e ff ff ff 80 3d 6f 32 72 08 00 0f 85 60 fe ff ff 48 c7 c7 40 6b 8a 87 c6 05 5b 32 72 08 01 e8 96 88 f5 ff <0f> 0b e9 46 fe ff ff 48 89 14 24 4c 89 ee 48 89 df 41 ff d4 48 8b RSP: 0018:ffffc90000da8c38 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffff8880a8c28440 RCX: 0000000000000000 RDX: 0000000000010203 RSI: 0000000000000027 RDI: ffffffff8b908120 RBP: 1ffff920001b5189 R08: ffffed1015d245f2 R09: ffffed1015d245f2 R10: ffff8880ae922f8b R11: ffffed1015d245f1 R12: ffffffff8157a1b0 R13: ffffc90000da8d68 R14: ffff88809526c580 R15: ffffffff88db9ac0 rcu_print_task_stall kernel/rcu/tree_stall.h:269 [inline] print_other_cpu_stall kernel/rcu/tree_stall.h:477 [inline] check_cpu_stall kernel/rcu/tree_stall.h:636 [inline] rcu_pending kernel/rcu/tree.c:3471 [inline] rcu_sched_clock_irq.cold.90+0x93a/0xd59 kernel/rcu/tree.c:2486 update_process_times+0x1f/0x50 kernel/time/timer.c:1726 tick_sched_handle+0x6f/0x130 kernel/time/tick-sched.c:176 tick_sched_timer+0x3e/0xf0 kernel/time/tick-sched.c:1320 __run_hrtimer kernel/time/hrtimer.c:1520 [inline] __hrtimer_run_queues+0x4b1/0xb60 kernel/time/hrtimer.c:1584 hrtimer_interrupt+0x2e5/0x770 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] smp_apic_timer_interrupt+0x15e/0x5f0 arch/x86/kernel/apic/apic.c:1105 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: e9 57 ff ff ff 48 89 df e8 1f 80 68 fa e9 e6 fe ff ff 48 89 df e8 12 80 68 fa eb 9c e9 07 00 00 00 0f 00 2d 94 85 52 00 fb f4 90 e9 07 00 00 00 0f 00 2d 84 85 52 00 f4 c3 cc cc 41 56 41 55 RSP: 0018:ffffc900017a7ba0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff888094763708 RCX: 0000000000000002 RDX: 1ffffffff11a8ac3 RSI: 0000000000000000 RDI: ffffffff88d45618 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff8b58aa87 R11: fffffbfff16b1550 R12: 0000000000000286 R13: ffffed10128ec6e1 R14: ffff8880ae938ac0 R15: 0000000000000001 arch_safe_halt arch/x86/include/asm/paravirt.h:144 [inline] kvm_wait+0x1c3/0x220 arch/x86/kernel/kvm.c:811 pv_wait arch/x86/include/asm/paravirt.h:655 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x92e/0xb80 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:645 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:50 [inline] queued_spin_lock include/asm-generic/qspinlock.h:81 [inline] do_raw_spin_lock+0x211/0x2e0 kernel/locking/spinlock_debug.c:113 spin_lock_bh include/linux/spinlock.h:358 [inline] lock_sock_nested+0x35/0xf0 net/core/sock.c:3047 lock_sock include/net/sock.h:1576 [inline] tipc_release+0x56/0x11b0 net/tipc/socket.c:625 __sock_release+0xbb/0x270 net/socket.c:605 sock_close+0xf/0x20 net/socket.c:1278 __fput+0x2a4/0x7a0 fs/file_table.c:281 task_work_run+0xc2/0x160 kernel/task_work.c:123 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x23d/0x2d0 arch/x86/entry/common.c:165 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x52a/0x620 arch/x86/entry/common.c:305 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x416721 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fff54358270 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000416721 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 00007fff54358360 R11: 0000000000000293 R12: 000000000078c900 R13: 000000000078c900 R14: ffffffffffffffff R15: 000000000078bfac Kernel Offset: disabled Rebooting in 86400 seconds..