网络有时候会出现问题是怎么回事？

我自己设计的包含串口和网口的底板，用的TQ2440核心板，底板参照TQ2440开发板，原理图和天嵌提供的一模一样。我通过HTML网页控制LED灯，为什么会有时候有下面的报错？

file:///C:\Program Files\Tencent\QQ\Users\2272430405\Image\UWA2$7]4CSDYP426ZQF1Z@C.jpg
file:///C:\Program Files\Tencent\QQ\Users\2272430405\Image\UWA2$7]4CSDYP426ZQF1Z@C.jpg
更严重的有时候还会出现下面的报错，重复出现，就是不停的报错
bad: scheduling from the idle thread!
Backtrace:
[<c0048fd4>] (dump_backtrace+0x0/0x10c) from [<c036f630>] (dump_stack+0x18/0x1c)
r7:c04af890 r6:00000000 r5:004c4b40 r4:00000000
[<c036f618>] (dump_stack+0x0/0x1c) from [<c005268c>] (dequeue_task_idle+0x24/0x38)
[<c0052668>] (dequeue_task_idle+0x0/0x38) from [<c0051aa8>] (dequeue_task+0x78/0xd8)
[<c0051a30>] (dequeue_task+0x0/0xd8) from [<c036fe28>] (__schedule+0x2a8/0x370)
r7:c04af890 r6:c0045ed8 r5:c04ac000 r4:c04ac000
[<c036fb80>] (__schedule+0x0/0x370) from [<c036ff0c>] (schedule+0x1c/0x2c)
[<c036fef0>] (schedule+0x0/0x2c) from [<c004651c>] (cpu_idle+0x5c/0x68)
r5:c04ac000 r4:c0045ed8
[<c00464c0>] (cpu_idle+0x0/0x68) from [<c036cefc>] (rest_init+0x5c/0x70)
r7:c04b04f0 r6:c0020d34 r5:c04e8700 r4:c050bfcc
[<c036cea0>] (rest_init+0x0/0x70) from [<c0008944>] (start_kernel+0x1e0/0x24c)
[<c0008764>] (start_kernel+0x0/0x24c) from [<30008034>] (0x30008034)
r5:c04e87e8 r4:c0007175


这些是怎么回事
网络芯片我都加焊了

如刚才沟通讲到，检查硬件布线

这是网络部分的布线，我直接用的自动布线，应该怎么处理一下比较好