INFO: task syz-executor.4:11568 blocked for more than 143 seconds.
      Not tainted 6.3.0-rc5-syzkaller-01299-gf2b3b6a22df7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:27592 pid:11568 ppid:15821  flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5307 [inline]
 __schedule+0xc91/0x5770 kernel/sched/core.c:6625
 schedule+0xde/0x1a0 kernel/sched/core.c:6701
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
 add_one_compat_dev drivers/infiniband/core/device.c:943 [inline]
 add_one_compat_dev+0xea/0x830 drivers/infiniband/core/device.c:920
 rdma_dev_init_net+0x2b8/0x510 drivers/infiniband/core/device.c:1185
 ops_init+0xb9/0x6b0 net/core/net_namespace.c:135
 setup_net+0x5d1/0xc50 net/core/net_namespace.c:338
 copy_net_ns+0x4ee/0x8e0 net/core/net_namespace.c:490
 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:228