Bug 240031 – hibernate and supend fails

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Bug 240031 - hibernate and supend fails

Summary:	hibernate and supend fails

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel (Show other bugs)
Sub Component:
Version:	6
Hardware:	x86_64 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Nigel Cunningham
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
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Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2007-05-14 11:41 EDT by info
Modified:	2007-11-30 17:12 EST (History)
CC List:	0 users

See Also:
Fixed In Version:	2.6.21-1.3194.fc7
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2007-07-02 21:59:17 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description info 2007-05-14 11:41:23 EDT

Description of problem:

pm-hibernate gives a message about shrinking memory, then "shutting down 
console(s)", and then nothing more. pm-suspend just gives a blank screen, but 
power stays on. In both cases I can't wake up the machine, I have to hard 
reset, and it goes through the full boot (starting services etc). It worked 
with previous kernel versions.

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

kernel-2.6.20-1.2948.fc6
but no problem in kernel-2.6.20-1.2933.fc6

How reproducible:

Always

Steps to Reproduce:
1. pm-hibernate or pm-suspend
  
Actual results:

Hibernate stops at "shutting down console(s)"

Expected results:

It should continue with saving to disk, stop the HD and shut down power. This 
works fine in the earlier kernel-2.6.20-1.2933.fc6

Additional info:

I can't see anything relevant in dmesg or /var/log/messages, the messages 
there are all about the boot process, not the shutdown.

The Laptop is a
Fujitsu-Siemens Amilo A1650G
AMD64 processor, 1GB memory

Comment 1 Nigel Cunningham 2007-06-12 07:12:44 EDT

Between 2933 and 2948, support for tickless kernel was added. It's not the only
thing, but I'd consider it a possibility. Would you please try booting with
nohz=off on the kernel command line?

Comment 2 info 2007-06-12 15:44:48 EDT

Yes, with nohz=off it works as it should (testing with 2.6.20-1.2952.fc6).

For your info, suspend and hibernate also work again in FC7 
(2.6.21-1.3194.fc7) without the nohz=off option (it doesn't wake up from 
suspend though, but that's a different matter).

Comment 3 Nigel Cunningham 2007-07-02 21:59:17 EDT

Ok. I'll close this as fixed in the current release then. Please feel free to
open another bug for the other issue (if you haven't already).

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