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zhanghongyu
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UDP and PKT will hold the dev lock and conn lock when calling back the protocol stack from the network dirver. At this time, if the poll_notify notifies usrsock_server and executes poll_teardown, a conn double lock will appear. so we changed the lock to a recursive lock sched_dumpstack /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/Libs/libc/sched/sched_dumpstack.c:71 __assert /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/libs/libc/assert/lib_assert.c:49 nxsem_wait_slow /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/sched/semaphore/sem_wait.c:102 (discriminator 1) nxmutex_lock /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/include/nuttx/mutex.h:514 udp_pollteardown /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/udp/udp_netpoll.c:278 usrsock_rpmsg_poll_setup /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/usrsock/usrsock_rpmsg_server.c:1232 usrsock_rpmsg_poll_cb /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/usrsock/usrsock_rpmsg_server.c:1299 poll_notify /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/fs/vfs/fs_poll.c:296 udp_poll_eventhandler /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/udp/udp_netpoll.c:105 devif_conn_event /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/devif/devif_callback.c:481 udp_callback /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/udp/udp_callback.c:324 udp_input_conn /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/udp/udp_input.c:150 ipv4_in /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/devif/ipv4_input.c:425 ipv4_input /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/net/devif/ipv4_input.c:533 tun_net_receive_tun /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/net/tun.c:574 tun_net_receive_tun /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/net/tun.c:574 file_writev_compat /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/fs/vfs/fs_write.c:89 rpmsgdev_write_handler /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/misc/rpmsgdev_server.c:354 rpmsg_virtio_process_rx_buffer /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/rpmsg/rpmsg_virtio.c:256 rpmsg_virtio_rx_worker /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/drivers/rpmsg/rpmsg_virtio.c:291 work_dispatch /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/sched/wqueue/kwork_thread.c:233 work_thread /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/sched/wqueue/kwork_thread.c:293 nxtask_start /home/work/ssd1/workspace/MiRTOS-062-dev-system-CI/nuttx/sched/task/task_start.c:99 Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>