protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=29360, c=29359, q=303) All QSes seen, last rcu_preempt kthread activity 10503 (4295024389-4295013886), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.2 R running task 29024 4009 6973 0x00000008 Call Trace: sched_show_task kernel/sched/core.c:5168 [inline] sched_show_task.cold+0x2f0/0x351 kernel/sched/core.c:5143 print_other_cpu_stall kernel/rcu/tree.c:1501 [inline] check_cpu_stall kernel/rcu/tree.c:1616 [inline] __rcu_pending kernel/rcu/tree.c:3390 [inline] rcu_pending kernel/rcu/tree.c:3452 [inline] rcu_check_callbacks.cold+0xcb1/0xd0a kernel/rcu/tree.c:2792 update_process_times+0x31/0x70 kernel/time/timer.c:1590 tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:161 tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1219 __run_hrtimer kernel/time/hrtimer.c:1220 [inline] __hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1284 hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1318 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:fib_table_lookup+0x180/0x1680 net/ipv4/fib_trie.c:1327 RSP: 0000:ffff8880aec073c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888058832a80 RDX: 0000000000000100 RSI: ffffffff87f888a0 RDI: 0000000000000282 RBP: ffff8880aec07490 R08: 0000000000000000 R09: ffff888058832b68 R10: ffff888058832b48 R11: ffff888058832200 R12: ffff8880854d86a0 R13: 000000000000000a R14: ffff8880854d86a0 R15: ffff8880994458b0 fib4_rule_action net/ipv4/fib_rules.c:135 [inline] fib4_rule_action+0x208/0x310 net/ipv4/fib_rules.c:108 fib_rules_lookup+0x2a4/0x950 net/core/fib_rules.c:279 __fib_lookup+0xd3/0x1a0 net/ipv4/fib_rules.c:93 fib_lookup include/net/ip_fib.h:318 [inline] ip_route_output_key_hash_rcu+0xf9e/0x2750 net/ipv4/route.c:2449 ip_route_output_key_hash+0x1c0/0x2e0 net/ipv4/route.c:2339 __ip_route_output_key include/net/route.h:126 [inline] ip_route_output_flow+0x27/0xa0 net/ipv4/route.c:2597 ip_route_output_key include/net/route.h:136 [inline] sctp_v4_get_dst+0xa9e/0x1030 net/sctp/protocol.c:512 sctp_transport_route+0xa5/0x430 net/sctp/transport.c:305 sctp_packet_config+0x7e4/0x9f0 net/sctp/output.c:106 sctp_outq_flush+0x49c/0x31b0 net/sctp/outqueue.c:879 sctp_outq_uncork+0x60/0x70 net/sctp/outqueue.c:761 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1776 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1179 [inline] sctp_do_sm+0x417/0x4ae0 net/sctp/sm_sideeffect.c:1150 sctp_generate_timeout_event+0x1a1/0x340 net/sctp/sm_sideeffect.c:308 sctp_generate_t1_init_event+0x1b/0x20 net/sctp/sm_sideeffect.c:330 call_timer_fn+0x161/0x670 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1636 [inline] __run_timers kernel/time/timer.c:1604 [inline] run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649 __do_softirq+0x244/0x9a0 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x160/0x1b0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:preempt_schedule_irq+0xab/0x140 kernel/sched/core.c:3611 RSP: 0000:ffff88804300fe18 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff0fe2d2b RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888058832a7c RBP: ffff88804300fe38 R08: 000000b3abae7952 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffed100b106440 R13: ffff888058832200 R14: ffffffff87f16958 R15: 0000000000000000 retint_kernel+0x1b/0x2d RIP: 0010:exit_to_usermode_loop+0x6d/0x220 arch/x86/entry/common.c:152 RSP: 0000:ffff88804300fef0 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff10 RAX: 0000000000040000 RBX: 0000000000000008 RCX: ffffc9000a065000 RDX: 0000000000000c49 RSI: ffffffff81006596 RDI: ffff888058832a7c RBP: ffff88804300ff20 R08: 000000b3ab47db3a R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: ffffed100b106440 R14: ffff88804300ff58 R15: ffff888058832200 prepare_exit_to_usermode+0x1b5/0x220 arch/x86/entry/common.c:199 retint_user+0x8/0x18 RIP: 0033:0x45d53a protocol 88fb is buggy, dev hsr_slave_0 RSP: 002b:00007ffaa7929c58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000000 RBX: 000000000075c270 RCX: 000000000045d53a RDX: 00000000004c2bf3 RSI: 00007ffaa7929c60 RDI: 0000000000000001 RBP: 000000000075c268 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000075c274 R13: 00000000004ca798 R14: 00000000004e39e0 R15: 000000000075c274 rcu_preempt kthread starved for 10549 jiffies! g29360 c29359 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 rcu_preempt R running task 29344 8 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2808 [inline] __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384 schedule+0x92/0x1c0 kernel/sched/core.c:3428 schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746 rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255 kthread+0x319/0x430 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 net_ratelimit: 6 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state device bridge_slave_0 left promiscuous mode bridge0: port 1(bridge_slave_0) entered disabled state device hsr_slave_1 left promiscuous mode device hsr_slave_0 left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves