Re: [PATCH v2] printk: Add kernel parameter to disable writes to /dev/kmsg

[Steven Rostedt]

On Mon, 25 Apr 2016 12:28:30 -0700
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> On Mon, Apr 25, 2016 at 12:06 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> 
> I think it should be a tristate with "yes/no/ratelimit", and let's
> default to ratelimit.
> 

Also note that ratelimit wouldn't have solved my issue either. It
wasn't that systemd was rapidly spewing into the kernel buffers. It was
doing it gradually, for every connection that I made to the box (lots
of automated connections were also being logged). I believe something
happened on Friday but due to all the unnecessary logging over the
weekend, I lost it.

To make matters worse, I lost my /var/log/syslog data from then.
logrotate was a bit more destructive than I expected.

-- Steve