On Sun, May 22, 2005 at 10:50:40PM -0400, Tim Taranov wrote: > here is the deal - I downloaded and installed fc4 test3 on my machine > (2x246 opterons, Tyan S2895 mobo, 4x1G ECC ram, nvidia 6600gt 16x > pci-express, SATA drive etc). Running the default kernel > ...1286_FC4smp for x86_64 build. > > If I enable software-based PCI mem hole remapping in my mobo's bios > then my workstation completely freezes after opening 1 or 2 web pages > in Firefox or any other bundled browser in KDE, Gnome (that the first > thing I noticed, there most likely are a bunch of other OS problems). > If this bios setting is set to disabled then no problems, however then > Linux does not see the full 4 gigs of my ram due to the PCI bus map > (linux does see the full 4gigs if I set the memhole remap to be > "software"-based). Anyone else is having the same issues with > software-based PCI memhole remap? There have been a large number of x86-64 updates in the last few days. Try out the latest kernel at http://people.redhat.com/davej/kernels/Fedora/FC4/ Dave