am335x CAN缓冲区问题

打印出要执行的函数名字

情况一：

Can0接收

can1每隔0.1秒执行这个命令cansend can1 111#1111

但是没有线连接

情况二：

can0 为挂在上等待接受状态

can1每隔0.1秒执行这个命令cansend can1 111#1111

都出现一下情况

1

[   92.739134] d_can_start_xmit  1

[   92.742174] d_can_write_msg_object 1.1

[   92.745742] d_can_object_put 1.1.1

[   92.748800]  d_can_msg_obj_is_busy1.1.1.1

[   92.752358] d_can_is_next_tx_obj_busy 1.2

[   92.756184] irqreturn_t d_can_isr   //can_open

[   92.759647] d_can_interrupts

[   92.762675] d_can_poll

[   92.765140]  d_can_handle_state_change

[   92.769070] d_can_get_berr_counter

[   92.772638]  d_can_handle_state_change

[   92.776558] d_can_get_berr_counter

[   92.780121] d_can_interrupts

2

[   92.895036] d_can_start_xmit

[   92.898153] d_can_write_msg_object

[   92.901707] d_can_object_put

[   92.904715]  d_can_msg_obj_is_busy

[   92.908282] d_can_is_next_tx_obj_busy

.......................... 

一直出现下面函数名字总计32次后出现报错信息write: No buffer space available

[   92.895036] d_can_start_xmit

[   92.898153] d_can_write_msg_object

[   92.901707] d_can_object_put

[   92.904715]  d_can_msg_obj_is_busy

[   92.908282] d_can_is_next_tx_obj_busy

write: No buffer space available
write: No buffer space available
write: No buffer space available
write: No buffer space available
write: No buffer space available

因为不可预知另外的can有没有连线，或者有没有挂载上等待接受，如果单方不断发送数据，是不是就会把缓冲区占满，那么有什么比较好的解决办法可以克服这样的情况。