On Thu, Jun 07, 2007 at 12:13:07PM +1000, Rusty Russell wrote: > 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.
Yep. libata somehow manages to avoid most of these, it'd be interesting to work out why. -- Mathematics is the supreme nostalgia of our time. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
