[lkml]   [2004]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] Console: fall back to /dev/null when no console is availlable
On Tue, Oct 05, 2004 at 02:06:59PM -0700, Greg KH wrote:
> On Tue, Oct 05, 2004 at 09:27:12PM +0100, Russell King wrote:
> > On Tue, Oct 05, 2004 at 08:52:14PM +0200, J?rn Engel wrote:
> > > Looks pretty trivial, but opinions on this subject may vary.
> > > Comments?
> >
> > There's a related problem. /sbin/hotplug. I keep seeing odd failures
> > from /sbin/hotplug scripts which go away when I ensure that fd0,1,2 are
> > directed at something real.
> Which scripts cause this problem?

I have no idea. Somewhere in the depths of the Red Hat networking
scripts. There's multiple of them calling multiple other programs
and it's impossible to debug what's going on. All I know is that
IPv6 doesn't get configured if fd0,1,2 are closed, but does if they're

It could be a script, or some other program. There's no way to tell.

> > It's rather annoying because it currently means that, when my PCMCIA net
> > interface on the firewall comes up, the IPv4 configuration works fine
> > but IPv6 configuration falls dead on its nose without any explaination
> > why.
> >
> > And, like I say, redirecting fd0,1,2 fixes it.
> Redirecting it in the script itself? Or in the kernel like this patch?

I'm redirecting them in the /sbin/hotplug script to something sane,
but I think the kernel itself should be directing these three fd's
to somewhere whenever it invokes any user program, even if it is

I think Alan disagrees with me, but I think the history that these
types of problems _keep_ cropping up over and over is proof enough
that it's necessary for sane userspace.

(Another example which is happening _now_: having /sbin/init die over
a suspend/resume cycle because you have no system console on your
embedded device isn't nice.)

Russell King
Linux kernel 2.6 ARM Linux -
maintainer of: 2.6 PCMCIA -
2.6 Serial core
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:06    [W:0.096 / U:2.940 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site