INFO: task dhcpcd:3059 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:0     pid:3059  tgid:3059  ppid:3058   task_flags:0x400140 flags:0x00000000
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff853ed8e4>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff853ed8e4>] rtnl_dumpit+0x1a2/0x1f6 net/core/rtnetlink.c:6826
[<ffffffff857695ee>] netlink_dump+0x4ca/0x114e net/netlink/af_netlink.c:2325
[<ffffffff8576a96a>] netlink_recvmsg+0x6f8/0x8e6 net/netlink/af_netlink.c:1976
[<ffffffff852cd232>] sock_recvmsg_nosec net/socket.c:1078 [inline]
[<ffffffff852cd232>] sock_recvmsg+0xd6/0x142 net/socket.c:1100
[<ffffffff852d1ad2>] ____sys_recvmsg+0x22c/0x8f4 net/socket.c:2812
[<ffffffff852d8412>] ___sys_recvmsg+0x112/0x19e net/socket.c:2854
[<ffffffff852da11a>] __sys_recvmsg+0x186/0x244 net/socket.c:2887
[<ffffffff852da248>] __do_sys_recvmsg net/socket.c:2893 [inline]
[<ffffffff852da248>] __se_sys_recvmsg net/socket.c:2890 [inline]
[<ffffffff852da248>] __riscv_sys_recvmsg+0x70/0xa2 net/socket.c:2890
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198
INFO: task kworker/u8:1:3300 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:0     pid:3300  tgid:3300  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff853ed5b2>] rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
[<ffffffff85eafe12>] rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
[<ffffffff85eafe12>] addrconf_verify_work+0x1c/0x3c net/ipv6/addrconf.c:4734
[<ffffffff801c8ddc>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3257
[<ffffffff801cb18c>] process_scheduled_works kernel/workqueue.c:3340 [inline]
[<ffffffff801cb18c>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3421
[<ffffffff801e9d70>] kthread+0x39e/0x7d8 kernel/kthread.c:463
[<ffffffff8006aa1a>] ret_from_fork_kernel+0x2a/0xc78 arch/riscv/kernel/process.c:214
[<ffffffff8668d02e>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:328
INFO: task syz-executor:4694 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:4694  tgid:4694  ppid:1      task_flags:0x400140 flags:0x00000002
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff854019be>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff854019be>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff854019be>] rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
[<ffffffff85404fda>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6958
[<ffffffff857759a2>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2550
[<ffffffff853f1bc2>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6985
[<ffffffff85773c56>] netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
[<ffffffff85773c56>] netlink_unicast+0x544/0x88a net/netlink/af_netlink.c:1344
[<ffffffff857747f0>] netlink_sendmsg+0x854/0xdcc net/netlink/af_netlink.c:1894
[<ffffffff852cd948>] sock_sendmsg_nosec net/socket.c:727 [inline]
[<ffffffff852cd948>] __sock_sendmsg+0xcc/0x162 net/socket.c:742
[<ffffffff852d6ad6>] __sys_sendto+0x27a/0x34e net/socket.c:2206
[<ffffffff852d6c6a>] __do_sys_sendto net/socket.c:2213 [inline]
[<ffffffff852d6c6a>] __se_sys_sendto net/socket.c:2209 [inline]
[<ffffffff852d6c6a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2209
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198
INFO: task syz-executor:4753 blocked for more than 430 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:4753  tgid:4753  ppid:1      task_flags:0x400140 flags:0x00000002
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff854019be>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff854019be>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff854019be>] rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
[<ffffffff85404fda>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6958
[<ffffffff857759a2>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2550
[<ffffffff853f1bc2>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6985
[<ffffffff85773c56>] netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
[<ffffffff85773c56>] netlink_unicast+0x544/0x88a net/netlink/af_netlink.c:1344
[<ffffffff857747f0>] netlink_sendmsg+0x854/0xdcc net/netlink/af_netlink.c:1894
[<ffffffff852cd948>] sock_sendmsg_nosec net/socket.c:727 [inline]
[<ffffffff852cd948>] __sock_sendmsg+0xcc/0x162 net/socket.c:742
[<ffffffff852d6ad6>] __sys_sendto+0x27a/0x34e net/socket.c:2206
[<ffffffff852d6c6a>] __do_sys_sendto net/socket.c:2213 [inline]
[<ffffffff852d6c6a>] __se_sys_sendto net/socket.c:2209 [inline]
[<ffffffff852d6c6a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2209
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198

Showing all locks held in the system:
3 locks held by kworker/u8:2/18:
4 locks held by ksoftirqd/1/24:
3 locks held by kworker/1:1/32:
1 lock held by khungtaskd/33:
 #0: ffffffff889e1320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6771
2 locks held by dhcpcd/3059:
 #0: ffffaf8013bcd6f0 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0xd9c/0x114e net/netlink/af_netlink.c:2267
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x1a2/0x1f6 net/core/rtnetlink.c:6826
2 locks held by getty/3162:
 #0: ffffaf80197960a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e4/0x12ea drivers/tty/n_tty.c:2211
2 locks held by syz-executor/3191:
3 locks held by kworker/u8:1/3300:
 #0: ffffaf801e007948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3232
 #1: ffff8f8009957b70 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3232
 #2: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
5 locks held by kworker/u8:7/3467:
2 locks held by kworker/1:4/3818:
2 locks held by kworker/1:2/4239:
2 locks held by kworker/1:7/4423:
3 locks held by kworker/u8:0/4640:
 #0: ffffaf8012289948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3232
 #1: ffff8f80041e7b70 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3232
 #2: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
4 locks held by kworker/1:10/4648:
2 locks held by kworker/1:12/4668:
1 lock held by syz.1.217/4678:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by syz-executor/4694:
 #0: ffffffff8963f4a8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0xea/0x31c net/core/rtnetlink.c:573
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
1 lock held by syz-executor/4753:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
1 lock held by syz-executor/5057:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
1 lock held by syz-executor/5065:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 33 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8007b93e>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:149
[<ffffffff80003346>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:155
[<ffffffff80061ac0>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff80061ac0>] dump_stack_lvl+0x12a/0x1a2 lib/dump_stack.c:120
[<ffffffff80061b54>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86623342>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff866235fa>] nmi_trigger_cpumask_backtrace+0x2b6/0x45a lib/nmi_backtrace.c:62
[<ffffffff800896e8>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff86637fc8>] trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
[<ffffffff86637fc8>] __sys_info lib/sys_info.c:157 [inline]
[<ffffffff86637fc8>] sys_info+0x20c/0x252 lib/sys_info.c:165
[<ffffffff80514a3a>] check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
[<ffffffff80514a3a>] watchdog+0xa70/0x11ec kernel/hung_task.c:515
[<ffffffff801e9d70>] kthread+0x39e/0x7d8 kernel/kthread.c:463
[<ffffffff8006aa1a>] ret_from_fork_kernel+0x2a/0xc78 arch/riscv/kernel/process.c:214
[<ffffffff8668d02e>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:328
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 32 Comm: kworker/1:1 Not tainted syzkaller #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events iterate_cleanup_work
epc : preempt_count include/asm-generic/preempt.h:11 [inline]
epc : should_resched include/asm-generic/preempt.h:77 [inline]
epc : __local_bh_enable_ip+0x392/0x5ee kernel/softirq.c:457
 ra : __local_bh_enable_ip+0x38e/0x5ee kernel/softirq.c:455
epc : ffffffff8016b9d2 ra : ffffffff8016b9ce sp : ffff8f8000016af0
 gp : ffffffff8a2fec60 tp : ffffaf8013ed3500 t0 : ffff8f8000016ec8
 t1 : 0000000000000098 t2 : fffffffff2f20000 s0 : ffff8f8000016b40
 s1 : 0000000000000102 a0 : 0000000000000001 a1 : ffffffff8820a170
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000102de0 a6 : 0000000000f00000 a7 : 0000000000000000
 s2 : ffffaf8013ed3500 s3 : ffffffff85d045d4 s4 : 0000000000000001
 s5 : ffffffff916cd6a0 s6 : 1ffff5f0027da6a1 s7 : ffffffff8a340820
 s8 : ffff8f8000016d80 s9 : dfffffff00000000 s10: ffff8f8000016d20
 s11: ffffaf8030073100 t3 : 1ffff5f006289603 t4 : ffffaf801f912128
 t5 : ffffffff87ad8ae8 t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff8016b9d2>] arch_local_irq_enable arch/riscv/include/asm/irqflags.h:21 [inline]
[<ffffffff8016b9d2>] __local_bh_enable_ip+0x392/0x5ee kernel/softirq.c:455
[<ffffffff85d045f8>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff85d045f8>] ipt_do_table+0xe9a/0x1cb4 net/ipv4/netfilter/ip_tables.c:357
[<ffffffff857edafa>] nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
[<ffffffff857edafa>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff85a4eed2>] nf_hook include/linux/netfilter.h:273 [inline]
[<ffffffff85a4eed2>] __ip_local_out+0x496/0xbd6 net/ipv4/ip_output.c:120
[<ffffffff85a4f640>] ip_local_out+0x2e/0x1a8 net/ipv4/ip_output.c:129
[<ffffffff858b1608>] synproxy_send_tcp.isra.0+0x428/0x636 net/netfilter/nf_synproxy_core.c:439
[<ffffffff858b35e2>] synproxy_send_client_synack+0x6cc/0x94e net/netfilter/nf_synproxy_core.c:484
[<ffffffff8599a942>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff8599a942>] nft_synproxy_do_eval+0x858/0xab8 net/netfilter/nft_synproxy.c:141
[<ffffffff8599ac00>] nft_synproxy_eval+0x28/0x4e net/netfilter/nft_synproxy.c:247
[<ffffffff858c0156>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff858c0156>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff85923f38>] nft_do_chain_inet+0x180/0x34c net/netfilter/nft_chain_filter.c:161
[<ffffffff857edafa>] nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
[<ffffffff857edafa>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff85a32c02>] nf_hook include/linux/netfilter.h:273 [inline]
[<ffffffff85a32c02>] NF_HOOK include/linux/netfilter.h:316 [inline]
[<ffffffff85a32c02>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:262
[<ffffffff85a30a34>] dst_input include/net/dst.h:474 [inline]
[<ffffffff85a30a34>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:453
[<ffffffff85a32f56>] NF_HOOK include/linux/netfilter.h:318 [inline]
[<ffffffff85a32f56>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff85a32f56>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:573
[<ffffffff853a96ec>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:6137
[<ffffffff853a996c>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6250
[<ffffffff853aab76>] process_backlog+0x4ec/0x1caa net/core/dev.c:6602
[<ffffffff853ae00e>] __napi_poll.constprop.0+0xa4/0x4b6 net/core/dev.c:7666
[<ffffffff853afb94>] napi_poll net/core/dev.c:7729 [inline]
[<ffffffff853afb94>] net_rx_action+0xa42/0xe36 net/core/dev.c:7881
[<ffffffff801692ce>] handle_softirqs+0x4b6/0x1336 kernel/softirq.c:622
[<ffffffff8668d128>] __do_softirq+0x12/0x1a kernel/softirq.c:656
[<ffffffff800694a0>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:119
[<ffffffff8668d076>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:361
INFO: task dhcpcd:3059 blocked for more than 452 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:0     pid:3059  tgid:3059  ppid:3058   task_flags:0x400140 flags:0x00000000
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff853ed8e4>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff853ed8e4>] rtnl_dumpit+0x1a2/0x1f6 net/core/rtnetlink.c:6826
[<ffffffff857695ee>] netlink_dump+0x4ca/0x114e net/netlink/af_netlink.c:2325
[<ffffffff8576a96a>] netlink_recvmsg+0x6f8/0x8e6 net/netlink/af_netlink.c:1976
[<ffffffff852cd232>] sock_recvmsg_nosec net/socket.c:1078 [inline]
[<ffffffff852cd232>] sock_recvmsg+0xd6/0x142 net/socket.c:1100
[<ffffffff852d1ad2>] ____sys_recvmsg+0x22c/0x8f4 net/socket.c:2812
[<ffffffff852d8412>] ___sys_recvmsg+0x112/0x19e net/socket.c:2854
[<ffffffff852da11a>] __sys_recvmsg+0x186/0x244 net/socket.c:2887
[<ffffffff852da248>] __do_sys_recvmsg net/socket.c:2893 [inline]
[<ffffffff852da248>] __se_sys_recvmsg net/socket.c:2890 [inline]
[<ffffffff852da248>] __riscv_sys_recvmsg+0x70/0xa2 net/socket.c:2890
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198
INFO: task kworker/u8:1:3300 blocked for more than 452 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1    state:D stack:0     pid:3300  tgid:3300  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff853ed5b2>] rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
[<ffffffff85eafe12>] rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
[<ffffffff85eafe12>] addrconf_verify_work+0x1c/0x3c net/ipv6/addrconf.c:4734
[<ffffffff801c8ddc>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3257
[<ffffffff801cb18c>] process_scheduled_works kernel/workqueue.c:3340 [inline]
[<ffffffff801cb18c>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3421
[<ffffffff801e9d70>] kthread+0x39e/0x7d8 kernel/kthread.c:463
[<ffffffff8006aa1a>] ret_from_fork_kernel+0x2a/0xc78 arch/riscv/kernel/process.c:214
[<ffffffff8668d02e>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:328
INFO: task syz-executor:4694 blocked for more than 452 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:4694  tgid:4694  ppid:1      task_flags:0x400140 flags:0x00000002
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff854019be>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff854019be>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff854019be>] rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
[<ffffffff85404fda>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6958
[<ffffffff857759a2>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2550
[<ffffffff853f1bc2>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6985
[<ffffffff85773c56>] netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
[<ffffffff85773c56>] netlink_unicast+0x544/0x88a net/netlink/af_netlink.c:1344
[<ffffffff857747f0>] netlink_sendmsg+0x854/0xdcc net/netlink/af_netlink.c:1894
[<ffffffff852cd948>] sock_sendmsg_nosec net/socket.c:727 [inline]
[<ffffffff852cd948>] __sock_sendmsg+0xcc/0x162 net/socket.c:742
[<ffffffff852d6ad6>] __sys_sendto+0x27a/0x34e net/socket.c:2206
[<ffffffff852d6c6a>] __do_sys_sendto net/socket.c:2213 [inline]
[<ffffffff852d6c6a>] __se_sys_sendto net/socket.c:2209 [inline]
[<ffffffff852d6c6a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2209
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198
INFO: task syz-executor:4753 blocked for more than 452 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:4753  tgid:4753  ppid:1      task_flags:0x400140 flags:0x00000002
Call Trace:
[<ffffffff8666de56>] context_switch kernel/sched/core.c:5256 [inline]
[<ffffffff8666de56>] __schedule+0x102c/0x451e kernel/sched/core.c:6863
[<ffffffff8667140c>] __schedule_loop kernel/sched/core.c:6945 [inline]
[<ffffffff8667140c>] schedule+0xc4/0x35e kernel/sched/core.c:6960
[<ffffffff866717a0>] schedule_preempt_disabled+0x16/0x28 kernel/sched/core.c:7017
[<ffffffff86679696>] __mutex_lock_common kernel/locking/mutex.c:692 [inline]
[<ffffffff86679696>] __mutex_lock+0x8aa/0x19b4 kernel/locking/mutex.c:776
[<ffffffff8667a7b4>] mutex_lock_nested+0x14/0x1c kernel/locking/mutex.c:828
[<ffffffff854019be>] rtnl_lock net/core/rtnetlink.c:80 [inline]
[<ffffffff854019be>] rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
[<ffffffff854019be>] rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
[<ffffffff85404fda>] rtnetlink_rcv_msg+0x9e2/0xdbe net/core/rtnetlink.c:6958
[<ffffffff857759a2>] netlink_rcv_skb+0x206/0x3be net/netlink/af_netlink.c:2550
[<ffffffff853f1bc2>] rtnetlink_rcv+0x26/0x30 net/core/rtnetlink.c:6985
[<ffffffff85773c56>] netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
[<ffffffff85773c56>] netlink_unicast+0x544/0x88a net/netlink/af_netlink.c:1344
[<ffffffff857747f0>] netlink_sendmsg+0x854/0xdcc net/netlink/af_netlink.c:1894
[<ffffffff852cd948>] sock_sendmsg_nosec net/socket.c:727 [inline]
[<ffffffff852cd948>] __sock_sendmsg+0xcc/0x162 net/socket.c:742
[<ffffffff852d6ad6>] __sys_sendto+0x27a/0x34e net/socket.c:2206
[<ffffffff852d6c6a>] __do_sys_sendto net/socket.c:2213 [inline]
[<ffffffff852d6c6a>] __se_sys_sendto net/socket.c:2209 [inline]
[<ffffffff852d6c6a>] __riscv_sys_sendto+0xc0/0x158 net/socket.c:2209
[<ffffffff800789d8>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:112
[<ffffffff86662f6e>] do_trap_ecall_u+0x3d8/0x56c arch/riscv/kernel/traps.c:343
[<ffffffff8668cf0e>] handle_exception+0x146/0x152 arch/riscv/kernel/entry.S:198

Showing all locks held in the system:
5 locks held by kworker/1:1/32:
1 lock held by khungtaskd/33:
 #0: ffffffff889e1320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6771
1 lock held by klogd/3015:
2 locks held by dhcpcd/3059:
 #0: ffffaf8013bcd6f0 (nlk_cb_mutex-ROUTE){+.+.}-{4:4}, at: netlink_dump+0xd9c/0x114e net/netlink/af_netlink.c:2267
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_dumpit+0x1a2/0x1f6 net/core/rtnetlink.c:6826
2 locks held by getty/3162:
 #0: ffffaf80197960a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x3e4/0x12ea drivers/tty/n_tty.c:2211
3 locks held by kworker/u8:1/3300:
 #0: ffffaf801e007948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3232
 #1: ffff8f8009957b70 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3232
 #2: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
6 locks held by kworker/u8:7/3467:
 #0: ffffaf8012aa3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3232
 #1: ffff8f8009be7b70 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3232
 #2: ffffffff89ec48b0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xcc/0x82c net/core/net_namespace.c:670
 #3: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
 #4: ffffaf801c78cd18 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2781 [inline]
 #4: ffffaf801c78cd18 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:42 [inline]
 #4: ffffaf801c78cd18 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: netdev_lock_ops include/net/netdev_lock.h:39 [inline]
 #4: ffffaf801c78cd18 (&dev_instance_lock_key#3){+.+.}-{4:4}, at: unregister_netdevice_many_notify+0xcb4/0x2504 net/core/dev.c:12368
 #5: ffffffff889f17f8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock+0x26a/0x37e kernel/rcu/tree_exp.h:311
2 locks held by kworker/1:4/3818:
3 locks held by kworker/u8:5/4340:
2 locks held by kworker/1:7/4423:
3 locks held by kworker/u8:0/4640:
 #0: ffffaf8012289948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3232
 #1: ffff8f80041e7b70 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3232
 #2: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
5 locks held by kworker/1:10/4648:
2 locks held by kworker/1:12/4668:
1 lock held by syz.1.217/4678:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by syz-executor/4694:
 #0: ffffffff8963f4a8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0xea/0x31c net/core/rtnetlink.c:573
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #1: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
1 lock held by syz-executor/4753:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x64c/0x1dc4 net/core/rtnetlink.c:4071
1 lock held by syz-executor/5057:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
1 lock held by syz-executor/5065:
 #0: ffffffff89edbc28 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:80
2 locks held by kworker/1:13/5068:

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 33 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8007b93e>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:149
[<ffffffff80003346>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:155
[<ffffffff80061ac0>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff80061ac0>] dump_stack_lvl+0x12a/0x1a2 lib/dump_stack.c:120
[<ffffffff80061b54>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86623342>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff866235fa>] nmi_trigger_cpumask_backtrace+0x2b6/0x45a lib/nmi_backtrace.c:62
[<ffffffff800896e8>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff86637fc8>] trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
[<ffffffff86637fc8>] __sys_info lib/sys_info.c:157 [inline]
[<ffffffff86637fc8>] sys_info+0x20c/0x252 lib/sys_info.c:165
[<ffffffff80514a3a>] check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
[<ffffffff80514a3a>] watchdog+0xa70/0x11ec kernel/hung_task.c:515
[<ffffffff801e9d70>] kthread+0x39e/0x7d8 kernel/kthread.c:463
[<ffffffff8006aa1a>] ret_from_fork_kernel+0x2a/0xc78 arch/riscv/kernel/process.c:214
[<ffffffff8668d02e>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:328
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4423 Comm: kworker/1:7 Not tainted syzkaller #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg0 wg_packet_tx_worker
epc : mod_node_page_state+0x28/0x6a mm/vmstat.c:746
 ra : mod_node_page_state+0x58/0x6a mm/vmstat.c:745
epc : ffffffff80946b24 ra : ffffffff80946b54 sp : ffff8f8000016c70
 gp : ffffffff8a2fec60 tp : ffffaf801c240000 t0 : ffff8f8000016520
 t1 : fffff1af001867ab t2 : 1ffff1f000002d40 s0 : ffff8f8000016ca0
 s1 : 0000000000000002 a0 : 0000000000000001 a1 : ffffffff8820a170
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : 0000000000f00000 a7 : ffff8d8000c33d5b
 s2 : ffffaf807ffeee80 s3 : 0000000000000006 s4 : 0000000000004000
 s5 : 0000000000000002 s6 : 0000000000150000 s7 : 0000000000000002
 s8 : ffffffff915345a0 s9 : ffffffff916cd6a0 s10: ffffaf8014a97b40
 s11: 0000000000000000 t3 : 81987a7b00000000 t4 : fffff1af001867ab
 t5 : fffff1af001867ac t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80946b24>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff80946b24>] mod_node_page_state+0x28/0x6a mm/vmstat.c:745
[<ffffffff80ac541c>] account_slab mm/slub.c:3204 [inline]
[<ffffffff80ac541c>] allocate_slab mm/slub.c:3267 [inline]
[<ffffffff80ac541c>] new_slab+0x138/0x438 mm/slub.c:3302
[<ffffffff80ac64c2>] ___slab_alloc+0xda6/0x1a3c mm/slub.c:4656
[<ffffffff80ac71ca>] __slab_alloc.constprop.0+0x72/0x118 mm/slub.c:4779
[<ffffffff80acb780>] __slab_alloc_node mm/slub.c:4855 [inline]
[<ffffffff80acb780>] slab_alloc_node mm/slub.c:5251 [inline]
[<ffffffff80acb780>] kmem_cache_alloc_node_noprof+0x320/0x834 mm/slub.c:5315
[<ffffffff852fc8ae>] kmalloc_reserve+0x1a6/0x2be net/core/skbuff.c:586
[<ffffffff8530ec7a>] __alloc_skb+0x1c4/0x4ea net/core/skbuff.c:690
[<ffffffff858b30c4>] alloc_skb include/linux/skbuff.h:1383 [inline]
[<ffffffff858b30c4>] synproxy_send_client_synack+0x1ae/0x94e net/netfilter/nf_synproxy_core.c:460
[<ffffffff8599a942>] nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:59 [inline]
[<ffffffff8599a942>] nft_synproxy_do_eval+0x858/0xab8 net/netfilter/nft_synproxy.c:141
[<ffffffff8599ac00>] nft_synproxy_eval+0x28/0x4e net/netfilter/nft_synproxy.c:247
[<ffffffff858c0156>] expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
[<ffffffff858c0156>] nft_do_chain+0x328/0x1598 net/netfilter/nf_tables_core.c:285
[<ffffffff85923f38>] nft_do_chain_inet+0x180/0x34c net/netfilter/nft_chain_filter.c:161
[<ffffffff857edafa>] nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
[<ffffffff857edafa>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff85a32c02>] nf_hook include/linux/netfilter.h:273 [inline]
[<ffffffff85a32c02>] NF_HOOK include/linux/netfilter.h:316 [inline]
[<ffffffff85a32c02>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:262
[<ffffffff85a30a34>] dst_input include/net/dst.h:474 [inline]
[<ffffffff85a30a34>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:453
[<ffffffff85a32f56>] NF_HOOK include/linux/netfilter.h:318 [inline]
[<ffffffff85a32f56>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff85a32f56>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:573
[<ffffffff853a96ec>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:6137
[<ffffffff853a996c>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6250
[<ffffffff853aab76>] process_backlog+0x4ec/0x1caa net/core/dev.c:6602
[<ffffffff853ae00e>] __napi_poll.constprop.0+0xa4/0x4b6 net/core/dev.c:7666
[<ffffffff853afb94>] napi_poll net/core/dev.c:7729 [inline]
[<ffffffff853afb94>] net_rx_action+0xa42/0xe36 net/core/dev.c:7881
[<ffffffff801692ce>] handle_softirqs+0x4b6/0x1336 kernel/softirq.c:622
[<ffffffff8668d128>] __do_softirq+0x12/0x1a kernel/softirq.c:656
[<ffffffff800694a0>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:119
[<ffffffff8668d076>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:361