Re: [patch v2] Fixes and cleanups for earlyprintk aka boot console.

[Andrew Morton <akpm@linux-foundation.org>]

On Tue, 24 Apr 2007 16:04:16 +0200 Gerd Hoffmann <kraxel@redhat.com> wrote:

> > I get this, across netconsole:
> > 
> > [17179569.184000] console handover: boot [earlyvga_f_0] -> real [tty0]
> > 
> > wanna take a look at why there's cruft in bootconsole->name please?
> 
> -EFULL ;)
> 
> "earlyvga" is 8 chars.  struct console->name is char[8].  No space left 
> for the trailing ´\0´, the cruft comes from the next field (write 
> function pointer).  Obviously nobody ever printed the early console 
> names before.

doh.

> Hmm.  We can make the names shorter.  We can make the name field longer 
> (probably 16, it ends up taking that much anyway due to aligments at 
> least on 64bit).  This looks best to me.  We could also use 
> printk("%.8s",name) to make printk stop after 8 chars, but I somehow 
> don't like hardcoding the length like this ...
> 

yup, making it 16 sounds simplest.  I'll do the patch, thanks.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/