Re: Console debugging wishlist was: Re: oops pauser.

[Josef Sipek]

On Tue, Jan 10, 2006 at 09:25:46PM +0100, Jan Engelhardt wrote:
> >What would be also cool would be to fix the VGA console to have 
> >a larger scroll back buffer.  The standard kernel boot output 
> >is far larger than the default scrollback, so if you get a hang
> >late you have no way to look back to all the earlier 
> >messages.
> >
> >(it is hard to understand that with 128MB+ graphic cards and 512+MB
> >computers the scroll back must be still so short...) 
> 
> I doubt this scrollback buffer is implemented as part of the video cards. 
> It is rather a kernel invention, and therefore uses standard RAM. But the 
> idea is good, preferably make it a CONFIG_ option.

There is a config option that lets you specify the size of this buffer:
CONFIG_LOG_BUF_SHIFT

Jeff.
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