Re: [PATCH 0/8] Rework KERN_<LEVEL>

From: Joe Perches
Date: Tue Jun 05 2012 - 19:52:24 EST


On Wed, 2012-06-06 at 01:48 +0200, Kay Sievers wrote:
> On Wed, Jun 6, 2012 at 1:43 AM, Joe Perches <joe@xxxxxxxxxxx> wrote:
> > On Wed, 2012-06-06 at 01:39 +0200, Kay Sievers wrote:
>
> >> > # echo "\001Hello Andrew" > /dev/kmsg
> >> > /dev/kmsg has
> >> > 12,774,2462339252;\001Hello Andrew
> >>
> >> Try "echo -e"? The stuff is copied verbatim otherwise.
> >
> > # echo -e "\001Hello Kay" > /dev/kmsg
> > gives
> > 12,776,3046752764;\x01Hello Kay
>
> Don't you need two bytes to trigger the logic?

Yes. Angle brackets fore and aft.

If you use a "<n>" prefix for write to /dev/kmsg,
then it's supported just like before.

Otherwise, it's emitted at KERN_DEFAULT.

cheers, Joe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/