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* INFO: task hung in wg_noise_handshake_consume_initiation
@ 2022-01-11  7:42 cruise k
  0 siblings, 0 replies; only message in thread
From: cruise k @ 2022-01-11  7:42 UTC (permalink / raw)
  To: Jason A. Donenfeld, David S. Miller, Jakub Kicinski, wireguard,
	netdev, linux-kernel


Syzkaller found the following issue:

HEAD commit: 75acfdb Linux 5.16-rc8
git tree: upstream
console output:
kernel config:

And hope the report log can help you.

INFO: task kworker/6:1:78 blocked for more than 143 seconds.
      Not tainted 5.16.0-rc8+ #10
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/6:1     state:D stack:26416 pid:   78 ppid:     2 flags:0x00004000
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
Call Trace:
 context_switch kernel/sched/core.c:4972 [inline]
 __schedule+0xcd9/0x2550 kernel/sched/core.c:6253
 schedule+0xd2/0x260 kernel/sched/core.c:6326
 rwsem_down_read_slowpath+0x59c/0xa90 kernel/locking/rwsem.c:1041
 __down_read_common kernel/locking/rwsem.c:1223 [inline]
 __down_read kernel/locking/rwsem.c:1232 [inline]
 down_read+0xe2/0x440 kernel/locking/rwsem.c:1472
 wg_receive_handshake_packet+0x589/0x9d0 drivers/net/wireguard/receive.c:151
 process_one_work+0x9df/0x16a0 kernel/workqueue.c:2298
 worker_thread+0x90/0xe20 kernel/workqueue.c:2445
 kthread+0x405/0x4f0 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

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