On Wed, 2008-01-09 at 17:22 -0500, David P. Reed wrote: > Zachary Amsden wrote: > > > > According to Phoenix Technologies book "System BIOS for IBM PCs, > > Compatibles and EISA Computers, 2nd Edition", the I/O port list gives > > > > port 0080h R/W Extra page register (temporary storage) > > > > Despite looking, I've never seen it documented anywhere else, but I > > believe it works on just about every PC platform. Except, apparently, > > my laptop. > > > > > > > The port 80 problem was discovered by me, after months of "bisecting" > the running code around a problem with hanging when using hwclock in > 64-bit mode when ACPI is on. So it kills my laptop, too, and many > currentlaptop motherboards designed by Quanta for HP and Compaq (dv6000, > dv9000, tx1000, apparently)
Thanks very much for that - I was debugging this for a while too, and eventually just shut off hwclock. > Your laptop isn't an aberration. It's part of the new generation of > evolved machines that take advantage of the capabilities of ACPI and > SMBIOS and DMI standards that are becoming core parts of the market. I beg to differ. I managed to turn the thing into a brick by upgrading the BIOS (with the correct image, no less) in an attempt to fix it. I just got it back from repair. I'm not sure that is positive evolutionary development, but it certainly does make my laptop an aberration :) FWIW, I fixed the problem locally by recompiling, changing port 80 to port 84 in io.h; works great, and doesn't conflict with any occupied ports. Zach -- 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/
