Re: [PATCHv7 5/8] printk: report lost messages in printk safe/nmi contexts

[Steven Rostedt]

On Tue, 27 Dec 2016 23:16:08 +0900
Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx> wrote:

> Account lost messages in pritk-safe and printk-safe-nmi
> contexts and report those numbers during printk_safe_flush().
> 
> The patch also moves lost message counter to struct
> `printk_safe_seq_buf' instead of having dedicated static
> counters - this simplifies the code.
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
> ---

This looks fine, but I'm curious if you tested it. That is, added a
bunch of printks to overflow the buffer. IIRC, I did it to the original
nmi code. If you haven't you may want to just to make sure it works. I
can also test it too if I get some time.

-- Steve