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: 1949 at kernel/sched/core.c:2675 try_invoke_on_locked_down_task+0x219/0x380 kernel/sched/core.c:2675 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 1949 Comm: syz-executor.3 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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:105 [inline] fixup_bug arch/x86/kernel/traps.c:100 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:197 do_invalid_op+0x32/0x40 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+0x219/0x380 kernel/sched/core.c:2675 Code: 00 00 85 c9 0f 85 e4 fe ff ff 80 3d 84 01 36 09 00 0f 85 d7 fe ff ff 48 c7 c7 c0 2f 2b 88 c6 05 70 01 36 09 01 e8 bf 28 f4 ff <0f> 0b e9 bd fe ff ff 48 8d 74 24 30 48 89 ef 49 c7 c6 c0 7d 03 00 RSP: 0018:ffffc90000da8c18 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 1ffff920001b5185 RCX: 0000000000000000 RDX: 0000000080010001 RSI: ffffffff815d5ba7 RDI: fffff520001b5175 RBP: ffff888057b14540 R08: ffff8880421b6480 R09: ffffed1015ce45f2 R10: ffff8880ae722f8b R11: ffffed1015ce45f1 R12: ffffffff8160dab0 R13: ffffc90000da8d40 R14: ffff8880421b6480 R15: dffffc0000000000 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+0x928/0xd25 kernel/rcu/tree.c:2486 update_process_times+0x25/0x60 kernel/time/timer.c:1726 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176 tick_sched_timer+0x4e/0x140 kernel/time/tick-sched.c:1320 __run_hrtimer kernel/time/hrtimer.c:1520 [inline] __hrtimer_run_queues+0x5ca/0xed0 kernel/time/hrtimer.c:1584 hrtimer_interrupt+0x312/0x770 kernel/time/hrtimer.c:1646 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline] smp_apic_timer_interrupt+0x15b/0x600 arch/x86/kernel/apic/apic.c:1105 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:__sctp_v6_cmp_addr net/sctp/ipv6.c:591 [inline] RIP: 0010:__sctp_v6_cmp_addr+0x2b1/0x540 net/sctp/ipv6.c:570 Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 0c 02 00 00 4c 33 65 10 31 ff 49 09 f4 4c 89 e6 e8 4f 4c 1d fa <4d> 85 e4 0f 85 12 ff ff ff e8 81 4a 1d fa 4c 89 ef e8 d9 20 99 ff RSP: 0018:ffffc90003257868 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000002 RBX: ffff88803aafca20 RCX: ffffffff87568431 RDX: 1d000000000080fe RSI: 0000000000000000 RDI: 0000000000000007 RBP: ffffc90003257950 R08: ffff8880421b6480 R09: ffffed101223ba08 R10: ffff8880911dd03b R11: ffffed101223ba07 R12: 1d000000000080fe R13: ffff88803aafca28 R14: ffffffff8a755540 R15: 0000000000000001 sctp_v6_cmp_addr+0x1a/0xd0 net/sctp/ipv6.c:609 sctp_bind_addr_state+0x103/0x1d0 net/sctp/bind_addr.c:404 sctp_copy_local_addr_list+0x255/0x530 net/sctp/protocol.c:161 sctp_copy_one_addr+0x5b/0x170 net/sctp/bind_addr.c:457 sctp_bind_addr_copy+0xfc/0x2ca net/sctp/bind_addr.c:56 sctp_connect_new_asoc+0x16c/0x580 net/sctp/socket.c:1095 sctp_sendmsg_new_asoc net/sctp/socket.c:1701 [inline] sctp_sendmsg+0x135d/0x1e50 net/sctp/socket.c:2011 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:814 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x219/0x330 net/socket.c:1995 __do_sys_sendto net/socket.c:2007 [inline] __se_sys_sendto net/socket.c:2003 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2003 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca69 Code: 0d 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5cd6a73c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000501d00 RCX: 000000000045ca69 RDX: 00000000000000e3 RSI: 0000000020000100 RDI: 0000000000000004 RBP: 000000000078c0e0 R08: 0000000020000000 R09: 000000000000001c R10: 0000000004000100 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a2c R14: 00000000004cd0f0 R15: 00007f5cd6a746d4 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..