Bug 240031

Summary:	hibernate and supend fails
Product:	[Fedora] Fedora	Reporter:	info
Component:	kernel	Assignee:	Nigel Cunningham <ncunning>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	2.6.21-1.3194.fc7	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-07-03 01:59:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description info 2007-05-14 15:41:23 UTC

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 11:12:44 UTC

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 19:44:48 UTC

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 2007-07-03 01:59:17 UTC

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).