Bug 253493 - BIOS bug
BIOS bug
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Linux
low Severity low
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2007-08-20 05:13 EDT by Stian Moltubakk
Modified: 2007-11-30 17:12 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2007-08-20 11:48:40 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Stian Moltubakk 2007-08-20 05:13:07 EDT
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.

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
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
Comment 1 Jarod Wilson 2007-08-20 11:48:40 EDT
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.
Comment 2 Stian Moltubakk 2007-08-20 14:16:52 EDT
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?
Comment 3 Jarod Wilson 2007-08-20 16:20:29 EDT
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.

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