printk() and KERN_CONT
printk() and KERN_CONT
[Kernel] Posted Aug 30, 2017 21:53 UTC (Wed) by jake
A nearly year-old "fix" to the main logging function used in the kernel, printk(), changed the appearance of some log messages in an unexpected way, at least for some. Messages that had appeared on a single line will now be spread over multiple lines as each call to printk() begins a new line in the output unless the KERN_CONT flag is used. That is how a comment in the kernel code says it should work, but the change was made by Linus Torvalds without any discussion or fanfare, so it took some by surprise.