UDP校验码 错误,为什么 dmesg
UDP: bad checksum. From 172.16.164.58:2425 to 172.16.68.2:2425 ulen 738
UDP: bad checksum. From 172.16.164.58:2425 to 172.16.68.2:2425 ulen 73 ...
kmap kmap_atomic都是把连续物理页面映射到连续虚拟地址空间么 从ULK的描述看,貌似隐含这个意思, 不然怎么单独有个 noncontiguous memory allocation
The kernel uses three different mechanisms to map page frames ...
dma_alloc_writecombine什么意思 Dma_alloc_coherent allocated memory does not use the cache, it will not use the write buffer.
这个cache和write buffer什么关系和区别
dma_alloc_ ...
除了能能ping通,啥也不行,看到内核挂在函数top_machine_cpu_stop上了 #0 stop_machine_cpu_stop (data=0xdb7afefc) at kernel/stop_machine.c:427
#1 0xc10a4518 in cpu_stopper_thread (cpu=) at kernel/stop_machine.c:285
#2 ...