本文主要是介绍【linux】给net/socket.c部分接口添加pr_info后运行情况，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
net/socket.c
合入文件及代码：
https://gitee.com/r77683962/linux-6.9.0/commit/d9aca07352311a9c185cbc2d3c39894e02f10df3
开机后dmesg命令运行效果：
这也是一部分，不过从这里看出来，添加打印日志的地方不太好，另一个问题比较奇怪，操作系统在运行的时候，什么也没操作，操作系统也在不断的调用网络的接口。
[ 85.995306] net/socket.c __sys_recvmsg
[ 85.995384] net/socket.c __do_sys_sendmsg
[ 85.995422] net/socket.c __sys_recvmsg
[ 86.003295] net/socket.c __do_sys_sendmsg
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[ 86.014216] net/socket.c __do_sys_sendmsg
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[ 86.521944] net/socket.c __do_sys_sendmsg
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[ 86.522258] net/socket.c __do_sys_sendmsg
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[ 86.522540] net/socket.c __do_sys_sendmsg
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[ 86.535442] net/socket.c __do_sys_sendmsg
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[ 86.546605] net/socket.c __do_sys_sendmsg
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[ 86.550415] net/socket.c __do_sys_sendmsg
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[ 86.550689] net/socket.c __do_sys_sendmsg
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[ 86.551244] net/socket.c __do_sys_sendmsg
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[ 86.964997] net/socket.c __sys_getsockopt
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[ 87.965816] net/socket.c __sys_getsockopt
[ 88.013801] net/socket.c __sys_recvmsg
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由于打印日志非常多，dmsg的缓冲区感觉不断被后边日志冲掉。
这里上传了一个正常些的，一个日志量非常大的。
从另一个角度表示，添加日志打印也要注意。
还有随便修改内核代码容易导致系统起不来，这两天碰到些（建议使用vm的快照和快照恢复功能）。。。。内核代码比较复杂
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