Red Hat Bugzilla – Bug 155236
thinkpad r40e boot failure with acpi enabled.
Last modified: 2015-01-04 17:18:59 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050416 Fedora/1.0.3-2 Firefox/1.0.3
Description of problem:
linux will not boot unless acpi=off is specified. Obviously this is undesirable as I would like to at least be able to see battery charge level.
A little testing and a few recompiles to narrow this down showed that setting "CONFIG_ACPI_PROCESSOR=n" enabled booting and other acpi features worked fine.
Ideally should not have to do this workaround since ACPI idle handler is desirable.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. attempt to boot unmodified rpm kernel.
Actual Results: freeze during boot. reboot required.
Expected Results: normal boot.
the kernel gets as far as detecting ide hardware before freezing.
I forgot to mention that this is not a recent regression and so not so high
priority perhaps. It hasn't worked on any of the kernels I tested since the
original FC3 one.
I notice there is already something in
linux-2.6.11/drivers/acpi/processor_idle.c for "IBM ThinkPad R40e" but it
doesnt apply to my machine because of a differing bios version (mine appears newer)
I tried adding something similar and now the machine boots with the original
.config supplied in the default fedora rpm.
I don't know if this fixes the issue properly. It apparently prevents the
machine going to c2/c3 but at least users can install and run FC on their
machines until it is fixed better.
See attached patch.
Created attachment 113376 [details]
makes r40e with bios version 1SET61WW able to boot.
Thanks, applied to CVS. Will be in tomorrows build.
works fine now using 2.6.11-1.1251_FC4