Bug 641557 - intel_idle causes Lenovo Ideapad S12 to sleep 'too deep'
Summary: intel_idle causes Lenovo Ideapad S12 to sleep 'too deep'
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 14
Hardware: All
OS: Linux
low
medium
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-10-09 09:47 UTC by Ville-Pekka Vainio
Modified: 2011-09-03 14:56 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2011-08-30 19:21:27 UTC
Type: ---
Embargoed:


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Description Ville-Pekka Vainio 2010-10-09 09:47:50 UTC
Description of problem:
According to the kernel changelogs, intel_idle gets loaded by default in kernel-2.6.35.6-39.fc14. This helped me find out what probably causes a problem with my Lenovo Ideapad S12 netbook. It seems intel_idle is causing the netbook to sleep 'too deep', which means even the clock won't run and if I have a download going on, it'll stop etc. The CPU is an Intel(R) Atom(TM) CPU N270. I've been able to work around this problem by adding 'nolapic' to the kernel line at grub.conf.

I could report this upstream as well, if needed.

Version-Release number of selected component (if applicable):
kernel-PAE-2.6.35.6-39.fc14.i686 is affected
kernel-PAE-2.6.35.6-36.fc14.i686 is not affected

Comment 1 Ville-Pekka Vainio 2010-10-21 22:15:45 UTC
Not fixed in kernel-2.6.36-1, it's actually even worse.

Comment 2 Chuck Ebbert 2010-10-22 03:27:59 UTC
Please report this upstream.

Comment 3 Ville-Pekka Vainio 2010-10-22 12:57:16 UTC
This has already been reported upstream after I made the bug report here, I've added my comments to the upstream bug: https://bugzilla.kernel.org/show_bug.cgi?id=20172

Comment 4 Andrew Martynov 2010-11-06 22:51:48 UTC
For my Lenovo Ideapad S10-3 'nolapic' does not work. In this case SATA controller did not detected correctly.

So only 'intel_idle.max_cstate=0' setting allows F14 to boot.

Comment 5 Len Brown 2010-11-23 16:29:41 UTC
Re: Lenovo Ideapad S10-3

upstream commit 4731fdcf6f7bdab3e369a3f844d4ea4d4017284d
"intel_idle: PCI quirk to prevent Lenovo Ideapad s10-3 boot hang"

shipped in 2.6.36

Same patch shipped as 00f8646ef207c509072889c922d180cd28c923b9
and 2.6.35.8

Apparently FC14 shipped with 2.6.35.6, which doesn't include that patch.

Comment 6 Josh Boyer 2011-08-30 19:21:27 UTC
This should be fixed in one of the errata kernels on F14 per comment #5

Comment 7 Ville-Pekka Vainio 2011-09-03 14:56:42 UTC
Actually, it's unsure whether this is fixed or not. See https://bugzilla.kernel.org/show_bug.cgi?id=20172#c39 and the next comment after that.


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