INFO: task syz.4.7645:1188 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc6-syzkaller-01204-gb8fa067c4a76 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.7645      state:D stack:24320 pid:1188  tgid:1183  ppid:28150  task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x16e2/0x4cd0 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6860
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
 rwsem_down_write_slowpath+0xbec/0x1030 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1578
 rdma_dev_exit_net+0x8c/0x340 drivers/infiniband/core/device.c:1122
 ops_exit_list net/core/net_namespace.c:200 [inline]
 ops_undo_list+0x49a/0x990 net/core/net_namespace.c:253
 setup_net+0x3e2/0x4b0 net/core/net_namespace.c:457
 copy_net_ns+0x32e/0x590 net/core/net_namespace.c:574
 create_new_namespaces+0x3d3/0x700 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:228
 ksys_unshare+0x4c8/0x8c0 kernel/fork.c:3375
 __do_sys_unshare kernel/fork.c:3446 [inline]
 __se_sys_unshare kernel/fork.c:3444 [inline]
 __x64_sys_unshare+0x38/0x50 kernel/fork.c:3444
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5c21b8e969
RSP: 002b:00007f5c229da038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f5c21db6080 RCX: 00007f5c21b8e969
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000062040200
RBP: 00007f5c21c10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5c21db6080 R15: 00007fffac5b51f8
 </TASK>
INFO: task syz-executor:1211 blocked for more than 150 seconds.
      Not tainted 6.15.0-rc6-syzkaller-01204-gb8fa067c4a76 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21984 pid:1211  tgid:1211  ppid:1      task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x16e2/0x4cd0 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6860
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6917
 rwsem_down_write_slowpath+0xbec/0x1030 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1ab/0x1f0 kernel/locking/rwsem.c:1578
 rdma_dev_exit_net+0x8c/0x340 drivers/infiniband/core/device.c:1122