Bug 10299

Summary:	fedora: "linux-2.6-acpi-fix-sizeof.patch" breaks acpi-cpufreq
Product:	ACPI	Reporter:	drago01
Component:	Config-Processors	Assignee:	Lin Ming (ming.m.lin)
Status:	CLOSED DUPLICATE
Severity:	normal	CC:	acpi-bugzilla, rjw, rui.zhang
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	kernel-2.6.24.3-47.fc8	Subsystem:
Regression:	---	Bisected commit-id:
Attachments:	dmesg output with cpufreq.debug=7 acpidump output cat /proc/cpuinfo lspci output dmidecode output proposed patch

Description drago01 2008-03-21 09:19:02 UTC

The patch "linux-2.6-acpi-fix-sizeof.patch" breaks acpi-cpufreq on my laptop. It has been backported to fedoras 2.6.24 kernels (now removed again due to this bug). I was asked to report it here. 
See: https://bugzilla.redhat.com/show_bug.cgi?id=436959#c17 (starting from this comment). 
I will attach some debug infos after submitting this.

Comment 1 drago01 2008-03-21 09:19:32 UTC

Created attachment 15377 [details]
dmesg output with cpufreq.debug=7

Comment 2 drago01 2008-03-21 09:19:59 UTC

Created attachment 15378 [details]
acpidump output

Comment 3 drago01 2008-03-21 09:20:23 UTC

Created attachment 15379 [details]
cat /proc/cpuinfo

Comment 4 drago01 2008-03-21 09:20:43 UTC

Created attachment 15380 [details]
lspci output

Comment 5 drago01 2008-03-21 09:21:33 UTC

Created attachment 15381 [details]
dmidecode output

Comment 6 drago01 2008-03-21 09:22:34 UTC

By break acpi-cpufreq I mean it fails to load with "no such device" and the cpu stays at max clock. I hope the infos provided are enough if not feel free to ask for more.

Comment 7 Lin Ming 2008-03-24 00:26:23 UTC

Created attachment 15411 [details]
proposed patch

Please try this patch

Mark buffer data valid when copying external buffer object to internal

Comment 8 drago01 2008-03-24 02:47:34 UTC

(In reply to comment #7)
> Created an attachment (id=15411) [details]
> proposed patch
> 
> Please try this patch
> 
> Mark buffer data valid when copying external buffer object to internal
> 

This one fixes the regression. Thx!

Comment 9 Len Brown 2008-03-24 18:05:18 UTC

what is "linux-2.6-acpi-fix-sizeof.patch"?

Comment 10 Lin Ming 2008-03-24 18:10:54 UTC

Len, 

it's the patch at Bug 9558 #33
http://bugzilla.kernel.org/attachment.cgi?id=14351&action=view

Comment 11 Len Brown 2008-03-24 21:24:35 UTC

The offending patch from bug 9558 was not included upstream.

Unclear why it was included in fedora before it hit
upstream or even the -mm tree, maybe that was a mistake.

So this isn't an upstream regression, but rather it is feedback
on the patch proposed for bug 9558.
Closing as a duplicate of bug 9558.

*** This bug has been marked as a duplicate of bug 9558 ***