INFO: task kworker/R-ipv6_:1938 blocked for more than 429 seconds.
      Not tainted 6.16.0-rc1-syzkaller-gfda589c28604 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/R-ipv6_ state:I stack:0     pid:1938  tgid:1938  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue:  0x0 (ipv6_addrconf)
Call Trace:
[<ffffffff8632de30>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff8632de30>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff86330f66>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff86330f66>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff801bfa14>] rescuer_thread+0x8aa/0xd68 kernel/workqueue.c:3552
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff8634b8fa>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
1 lock held by init/1:
1 lock held by kthreadd/2:
2 locks held by kworker/0:1/11:
3 locks held by kworker/u9:2/30:
1 lock held by khungtaskd/37:
 #0: ffffffff883dc420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
3 locks held by kworker/u10:2/45:
 #0: ffffaf802fc4d948 ((wq_completion)wg-kex-wg2#3){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213