Red Hat Bugzilla – Bug 253493
BIOS bug
Last modified: 2007-11-30 17:12:13 EST
Description of problem: The first mesages I get when booting linux is:MP-BIOS bug: 8254 timer not conected to IO-APIC I have previously just ignored this since my system work just fine, but in the later kernels I recive PCI:BIOS bug:MCFG area at e0000000 is not E820 reserved. PCI:Not using MMCONFIG. I tryed testing with the latest kernel from the updates-testing repo, but the problem is still there. Version-Release number of selected component (if applicable): How reproducible: reproduces everytime on my ASUS A7D Steps to Reproduce: 1.Boot system 2.Watch 3.Result Actual results: Errors come up Expected results: No errors Additional info: MP-BIOS bug has bothered me all the way trough fc6 and until now the two others has poped up with the latest kernel releases in f7 and are still there with the kernel from the updates-testing kernel 2.6.22.2-57.fc7
These are just informational messages. First up, your BIOS is semi-broken, so the kernel just lets you know. Since the MCFG area isn't E820 reserved, we let you know that we're not going to enable MMCONFIG for your system. Nothing here that is a kernel bug.
Thanks, one less thing a idiot don't have to worry about. Is this new functions since previous kernels did not inform me about this?
If I'm thinking of the right bits, MMCONFIG was off in recent kernels, but we turn it back on once in a while to see if it doesn't cause problems. I believe the problem we usually run into is that it doesn't get disabled where it isn't safe, but the correct action seems to be taken on your system.