There is still a lot to cover regarding the logging of kernel messages via the printk kernel API. This section delves into some of the details. It's important for a budding kernel developer like you to clearly understand these.
In this section, we delve into more detail regarding kernel logging. We come to understand how exactly printk output is dealt with, looking at its pros and cons. We discuss the printk log levels, how modern systems log messages via the systemd journal, and how output can be directed to the console device. We round off this discussion with a note on rate-limiting printk and user-generated prints, generating printk's from user space and standardizing the printk output format.
We saw earlier, in the A quick first look at the kernel printk section, the essentials of using the kernel printk API's functionality. Here, we explore a lot more with respect to the printk() API&apos...
