Bug 680654

Summary:	/home on btrfs is quite unusable.
Product:	[Fedora] Fedora	Reporter:	Fabian Deutsch <fabian.deutsch>
Component:	kernel	Assignee:	Josef Bacik <jbacik>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone:	---
Target Release:	---
Hardware:	i686
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-06-08 21:33:45 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Fabian Deutsch 2011-02-26 18:53:48 UTC

Description of problem:
I converted my ext3 based /home to btrfs using btrfs-convert.
After the conversion the system felt sluggish.
Especially empathy was nearly not working at all, because it got stalled.
Also Firefox took several minutes to start. Then it told me about some problems.

I converted the partition using a 2.36 kernel (not instaleld anymore). But mounting the partition with it raised kerneloops. So i used the partition with the 2.6.38 kernel below.

Version-Release number of selected component (if applicable):
$ rpm -q kernel btrfs-progs
kernel-2.6.35.9-64.fc14.i686
kernel-2.6.37-0.rc5.git2.1.fc15.i686
kernel-2.6.38-0.rc6.git0.1.fc16.i686
btrfs-progs-0.19-12.fc14.i686

How reproducible:


Steps to Reproduce:
1. Convert a ~3year old ext3 partition to btrfs: btrfs-convert /dev/mapper/Log...
2. Change fstab (just changed the filesystem to btrfs)
3. Reboot
  
Actual results:
Booting is fine.
Using aplication within my Xsession is a no-go.

Expected results:
Everything is fine.

Additional info:

Comment 1 Fabian Deutsch 2011-03-10 08:34:34 UTC

The problem appeared to be a quite-full /home. I just had 5% of free space.
After freeing some more space (30%) the conversion was successful and it is working fine.

Comment 2 Josef Bacik 2011-06-08 21:33:45 UTC

great let me know if you have any other issues.