protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_0
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P14901
rcu: 	(detected by 0, t=10503 jiffies, g=141369, q=827)
syz-executor5   R  running task    22856 14901   7474 0x00000006
Call Trace:
 <IRQ>
 sched_show_task.cold.86+0x2b6/0x30a kernel/sched/core.c:5293
 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:690
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:703 [inline]
 print_other_cpu_stall.cold.69+0x5b5/0x8db kernel/rcu/tree.c:1289
 check_cpu_stall kernel/rcu/tree.c:1429 [inline]
 rcu_pending kernel/rcu/tree.c:3018 [inline]
 rcu_check_callbacks+0xfe8/0x1410 kernel/rcu/tree.c:2521
 update_process_times+0x2d/0x70 kernel/time/timer.c:1635
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:161
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:100
Code: d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 c8 47 80 7e 81 e2 00 01 1f 00
RSP: 0018:ffff88805f58eb80 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8880967a8108 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff86c5ca8d RDI: ffff88805f58f4f8
RBP: ffff88805f58eb80 R08: ffff888067cb8680 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805f58f4d0
R13: 0000000000000011 R14: 0000000000000011 R15: 0000000000006020
 __xfrm4_selector_match net/xfrm/xfrm_policy.c:195 [inline]
 xfrm_selector_match+0x82d/0xf90 net/xfrm/xfrm_policy.c:219
 xfrm_policy_match+0x1ef/0x2d0 net/xfrm/xfrm_policy.c:1894
 __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2022 [inline]
 xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline]
 xfrm_policy_lookup_bytype+0xa1a/0xe70 net/xfrm/xfrm_policy.c:2113
 xfrm_policy_lookup+0x7e/0x80 net/xfrm/xfrm_policy.c:2145
 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline]
 xfrm_lookup_with_ifid+0x972/0x2b80 net/xfrm/xfrm_policy.c:3080
 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline]
 xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183
 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582
 udp_sendmsg+0x22d8/0x3bf0 net/ipv4/udp.c:1144
 udpv6_sendmsg+0x182c/0x36a0 net/ipv6/udp.c:1279
 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 __sys_sendto+0x3d7/0x670 net/socket.c:1788
 __do_sys_sendto net/socket.c:1800 [inline]
 __se_sys_sendto net/socket.c:1796 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1796
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fea1e88fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457ec9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 00000000200000c0 R09: 000000000000001c
R10: 0000000004008080 R11: 0000000000000246 R12: 00007fea1e8906d4
R13: 00000000004c5284 R14: 00000000004d8ba8 R15: 00000000ffffffff
syz-executor5   R  running task    22856 14901   7474 0x80000006
Call Trace:
 <IRQ>
 sched_show_task.cold.86+0x2b6/0x30a kernel/sched/core.c:5293
 rcu_print_detail_task_stall_rnp+0xc7/0x103 kernel/rcu/tree_plugin.h:690
 rcu_print_detail_task_stall kernel/rcu/tree_plugin.h:705 [inline]
 print_other_cpu_stall.cold.69+0x615/0x8db kernel/rcu/tree.c:1289
 check_cpu_stall kernel/rcu/tree.c:1429 [inline]
 rcu_pending kernel/rcu/tree.c:3018 [inline]
 rcu_check_callbacks+0xfe8/0x1410 kernel/rcu/tree.c:2521
 update_process_times+0x2d/0x70 kernel/time/timer.c:1635
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:161
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline]
 smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:100
Code: d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 c8 47 80 7e 81 e2 00 01 1f 00
RSP: 0018:ffff88805f58eb80 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000001 RBX: ffff8880967a8108 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff86c5ca8d RDI: ffff88805f58f4f8
RBP: ffff88805f58eb80 R08: ffff888067cb8680 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805f58f4d0
R13: 0000000000000011 R14: 0000000000000011 R15: 0000000000006020
 __xfrm4_selector_match net/xfrm/xfrm_policy.c:195 [inline]
 xfrm_selector_match+0x82d/0xf90 net/xfrm/xfrm_policy.c:219
 xfrm_policy_match+0x1ef/0x2d0 net/xfrm/xfrm_policy.c:1894
 __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2022 [inline]
 xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline]
 xfrm_policy_lookup_bytype+0xa1a/0xe70 net/xfrm/xfrm_policy.c:2113
 xfrm_policy_lookup+0x7e/0x80 net/xfrm/xfrm_policy.c:2145
 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline]
 xfrm_lookup_with_ifid+0x972/0x2b80 net/xfrm/xfrm_policy.c:3080
 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline]
 xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183
 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582
 udp_sendmsg+0x22d8/0x3bf0 net/ipv4/udp.c:1144
 udpv6_sendmsg+0x182c/0x36a0 net/ipv6/udp.c:1279
 inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 __sys_sendto+0x3d7/0x670 net/socket.c:1788
 __do_sys_sendto net/socket.c:1800 [inline]
 __se_sys_sendto net/socket.c:1796 [inline]
 __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1796
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fea1e88fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457ec9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 00000000200000c0 R09: 000000000000001c
R10: 0000000004008080 R11: 0000000000000246 R12: 00007fea1e8906d4
R13: 00000000004c5284 R14: 00000000004d8ba8 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 204 jiffies! g141369 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     I22208    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2831 [inline]
 __schedule+0x86c/0x1ed0 kernel/sched/core.c:3472
 schedule+0xfe/0x460 kernel/sched/core.c:3516
 schedule_timeout+0x140/0x260 kernel/time/timer.c:1803
 rcu_gp_fqs_loop+0x762/0xa80 kernel/rcu/tree.c:1948
 rcu_gp_kthread+0x341/0xc70 kernel/rcu/tree.c:2105
 kthread+0x35a/0x440 kernel/kthread.c:246
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352