Re: [PATCH/REQ] Increase kmsg buffer from 16K to 32K, kernel/printk.c

[Mark Hahn]

> > Would it be possible to grow and shring that buffer on demand?
> > Let's say we have a default size and let it grow to a maximum
> > value. After some timeout, buffer size can be shrinked to
> > default value if it's enough at that moment. Or something
> > similar.
> 
> And when you can't allocate memory for expanding the
> printk() ringbuffer?  Print a message? ;)

;)
but seriously, we normally need a big printk buffer only because 
of boot messages.  no reason I know we couldn't shrink it down
to something quite modest (4k?  plenty for a few oopses) after boot.