Bug 465320

Summary: Kernel 2.6.26.3-14 hangs immediately after nash on an aluminium iMac
Product: [Fedora] Fedora Reporter: Raffaele Candeliere <r.candeliere>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: medium    
Version: 9CC: kernel-maint
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Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2008-10-04 04:37:16 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Raffaele Candeliere 2008-10-02 19:05:24 UTC
Description of problem:
The kernel hangs immediately with the following message 
BIOS ERROR: MCFG memory af f000000000000000 is not ACPI reserved


Version-Release number of selected component (if applicable):
2.6.26.3-14

How reproducible:
install a 2.6.26.3-14 kernel on a 20" aluminimum iMac.


Steps to Reproduce:
1.
2.
3.
  
Actual results:
The system doesn't boot

Expected results:


Additional info:
No log files, no dmesg. Nothing. It is impossible to take some information, since the boot process doesn't even reach a phase in which it can access the disk.
It stays indefinitely there with the "Red Hat Nash starting" and "kernel alive" rows below the formerly reported error.
The previous kernel, on the contrary, (2.6.24.?) doesn't show the problem.
It starts perfectly.

Thank you

Comment 1 Raffaele Candeliere 2008-10-03 14:39:56 UTC
Hallo again.
Yesterday, while posting the bug, i wasn't in front of my iMac so i've been a bit unprecise about the kernel versions.
The faulty kernel is 2.6.26.3-29 (instead of ...-14 as stated) while the working one is the 2.6.25.14-108 (instead of the 2.6.24-... as stated).

The screen, immediately after the grub phase, displays the following lines:

<Top of the screen>
<Some GRUB lines>

Decompressing Linux... Parsing ELF... Done
Booting the kernel
PCI:BIOS BUG: MCFG area at f000000 is not reserved in ACPI motherboard resources.

i8042.c: No controller found.
Red Hat nash version 6.0.52 starting


Kernel alive
<Bottom of the screen>

P.S. the line "i8042.c ..." used to appear also with the working kernel, therefore i suppose it has nothing to do with the hang.

Comment 2 Chuck Ebbert 2008-10-04 04:37:16 UTC
Should be fixed in 2.6.26.5-45

*** This bug has been marked as a duplicate of bug 462210 ***

Comment 3 Raffaele Candeliere 2008-10-04 09:04:59 UTC
Thank you very much