On Sat, Feb 28, 2004 at 09:16:50PM +0100, Lupe Christoph wrote:
> On Saturday, 2004-02-28 at 08:43:14 -0800, Greg KH wrote:
> > On Sat, Feb 28, 2004 at 04:55:49PM +0100, Lupe Christoph wrote:
> 
> > > I have a similar crash with 2.4.24. I'm using a PL-2303 to interface NUT
> > > to a Belkin UPS. When the machine boots, I have to unplug the PL-2303 or
> > > I get a kernel panic. With 2.4.23, I believe it was something like
> > > "scheduling in interrupt". With 2.4.24 it was
> 
> > > Kernel BUG in sched.c:564
> > > invalid operand 0000
> 
> > > ... registers, traceback, etc.
> 
> > > Kernel panic: Aiee, killing interrupt handler
> > > In interrupt handler - not syncing.
> 
> > Known problem, use 2.6 :)
> 
> Har, har...

I'm serious.  What's keeping you from using 2.6 on your machines?  If
something doesn't work, please let us know so we can make it work.

> > Or just disable kudzu as it is probably the culprit by probing all of
> > your serial ports.
> 
> Nope, it's CUPS. /usr/lib/cups/backend/serial is the culprit. I found no
> way to exclude serial ports in CUPS probing.

How about disabling the usb tty ports in that backend?  It shouldn't be
that hard.

good luck,

greg k-h


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