On Wed, 2007-06-06 at 11:23 +0100, Alan Cox wrote:
> > > Better yet just don't compile in the old IDE stuff, lguest doesn't have a
> > > PCI or ISA bus anyway.
> >
> > Sure, but the "run the same kernel as guest and host" is a really nice
> > feature.
>
> Modules dear boy, modules ;)
For some reason, pulling half the kernel's brains out into a separately
maintained userspace seems to make things less reliable. I always build
in everything I need to boot.
Perhaps this makes me an old-timer.
> > > Alternatively make the IDE I/O space return 0xFF and it'll skip them
> > > anyway.
> >
> > Hmm, every "in" should be returning 0xFFs, but I still get the delay and
> > the probing. Xen domU gets it too.
>
> Can you see in a debugger where it is spending the time. 0xFF should be
> taken as "no port, move on nothing to see"
Well, the code is a little opaque to me, but do_probe() calls msleep(50)
three times. According to gdb this gets called 27 times -> 4.05
seconds.
Cheers,
Rusty.
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