关于 printk 问个问题

shi_wen_qiang

以下这段话是 Linux Device Driver 中关于 printk 的讲解，红色标记的句子我不解其意，请大家给予指点或提示. 谢谢.

Based on the loglevel, the kernel may print the message to the current console, be it a text-mode terminal, a serial port, or a parallel printer. If the priority is less than the integer variable console_loglevel, the message is delivered to the console one line at a time (nothing is sent unless a trailing newline is provided). If both klogd and syslogd are running on the system, kernel messages are appended to /var/log/messages (or otherwise treated depending on your syslogd configuration), independent of console_loglevel. If klogd is not running, the message won't reach user space unless you read /proc/kmsg (which is often most easily done with the dmesg command). When using klogd, you should remember that it doesn't save consecutive identical lines; it only saves the first such line and, at a later time, the number of repetitions it received.

shi_wen_qiang

这个问题貌似问的不咋地，哈哈. 结贴吧.