Anyone Using EXT4 Having Problems?

haxit · 2008-11-26 01:41:32

As the title says, and if so, if you don't mind sharing....

klixon · 2008-11-26 06:09:39

No problems so far (been running it for two weeks, on a root, var, and home, all three on LVM)
I'll keep you posted, should anything bad happen

peart · 2008-11-26 07:07:34

I've been using it on 3 partitions for a couple of months. It's been rock solid.
File deletions are way fast. I accidentally rm -rf'ed /usr about a month ago. It took like half a second to destroy my installation
IMHO, Reiser3 is still the king of small files, though.

haxit · 2008-11-26 21:58:50

That is awesome, thanks guys.

dmz · 2008-11-26 22:15:00

rm -rf /usr in half a second? Damn, I gotta try this out. ^_^

haxit · 2008-11-26 22:57:08

dmz wrote:

rm -rf /usr in half a second? Damn, I gotta try this out. ^_^

Carefull!!!!

neotuli · 2008-11-26 23:41:36

Hmmmm...

I recently had this discussion with someone, is ext4 something we'd like to support in the arch installer out of the box already, or should we perhaps hold off for another kernel release cycle? After all, this will be the first kernel release that it is renamed 'ext4' instead of 'ext4dev'... is it something we should consider stable enough to offer as a menu option at this point?

Currently I'm leaning toward waiting another release cycle, with filesystems the tried-and-true tends to be more important than new-and-shiny, but I'm interested in hearing some opinions on this anyway? Should we perhaps wait 2 release cycles?

dmz · 2008-11-27 06:29:04

I don't like waiting.

klixon · 2008-11-27 07:39:21

You could add it to the installer with a dialog that shows up when you select it:
"This is a fairly new filesystem and may cause problem. If that is the case I promise to file a bug-report at http://bugzilla.kernel.org/ " Agree/Cancel

EDIT: s/bugs\(.kernel.org\)/bugzilla\1/

Last edited by klixon (2008-11-27 08:10:25)

peart · 2008-11-27 07:42:31

Once the 2.6.28 kernel is released, I think a fair amount of people will want to try out ext4, but will have to jump through hoops to get Arch installed on it. It's not hard, but kind of inconvenient. Yet another group will wonder why (read: whine) it wasn't added yet. So, my opinion is that ext4 support should be added to the installer sooner than later for no better reasons than 1) making the lives of group 1 easier, and 2) avoiding group 2 altogether.

The people who have important data should be smart enough to make a more conservative choice of file systems.

shazeal · 2008-11-27 08:44:50

I am running ext4 on 3 machines, full root/boot/other partitions, couple on raid1. It is stable right now, I would suggest it become enabled in next release otherwise I will have to keep building my own damn boot-cds for when I want to mess about with something without mounting the rootfs.

I would hesitate to use it as a server FS, but only for a second while I thought of all the great times me and ext3 had, and then I would mkfs.ext4 that partition and never look back. Seriously though I have tried to trash it on my spare machine, pulling power while writing etc, not a single file lost, and the fsck is really fast afterwards .

The only issue with ext4 at the moment is that klibc in arch does not support ext4, only ext4dev

andre.ramaciotti · 2008-11-27 11:25:36

I agree with klixon, it should be there but with a warning.

Finkregh · 2008-11-27 12:13:49

andre.ramaciotti wrote:

I agree with klixon, it should be there but with a warning.

fullack

Mikko777 · 2008-11-27 12:24:39

+1 for add.

Nezmer · 2008-11-27 19:38:30

Waiting for 1 release cycle is reasonable . Some bugs still come up ( rtorrent is a champion in that field) . Delayed allocation is still not that stable . If you choose to support it in 2.6.28 , Advise users to add nodelalloc in their fstabs .

lucke · 2008-11-27 20:23:47

What's unstable about delalloc?

Nezmer · 2008-11-27 20:34:22

lucke wrote:

What's unstable about delalloc?

just google 'ext4 rtorrent'

ralvez · 2008-11-27 23:02:45

Considering how critical a file system is (read: something goes wrong and your data gets trashed ) I'm of the opinion that waiting is not an unreasonable option.
A good compromise position would be, as already suggested, to include it as an option with an appropriate warning.

R.

Last edited by ralvez (2008-11-27 23:03:22)

jdhore · 2008-11-28 05:47:56

I have a small Ext4 question...Can grub-legacy boot to a Ext4 partition like how it can with Ext2/3 or do you have to have a separate /boot that's ext2/3?

Wintervenom · 2008-11-28 05:52:55

I believe it is the latter.

Last edited by Wintervenom (2008-11-28 05:53:23)

xd-0 · 2008-11-28 06:14:46

Enabling it will make more people use it and hence output more bugreports to the devs. But I think those who would submit bugreports would also be those who have no problem using it anyway.

The only thing that speaks for including it before 2.6.28 is that some would want it on / etc. As mentioned, include it and those people don't need to build their own boot-cds.

klixon · 2008-11-28 08:56:24

you don't need to make your own bootcd. You can use the latest beta to setup an ext4 system. It's just not an option in the filesystem choices in the menu yet... everything else is already in place

shazeal · 2008-11-28 10:08:06

Nezmer wrote:

lucke wrote:
What's unstable about delalloc?
just google 'ext4 rtorrent'

This was fixed in 2.6.28rc3 or something.

Nezmer · 2008-11-28 11:03:36

shazeal wrote:

Nezmer wrote:
lucke wrote:
What's unstable about delalloc?
just google 'ext4 rtorrent'
This was fixed in 2.6.28rc3 or something.

The point is still valid . Some nasty bugs still come up . It's not wise to use a filesystem that receives a lot of patches (Patches that fix major issues not minor) .

test1000 · 2008-11-28 13:09:01

'major' and 'minor' doens't really mean anything though, does it? It's as easy to fsck up and the result be a major bug and fsck up and the result be a minor bug is't it? besides, i think the bug your referring to was a known-about-bug, meaning it was KNOWN to not work with any kernels that was <2.6.28rc* at the time.. I might be confusing this bug and another though..

Arch Linux

#1 2008-11-26 01:41:32

Anyone Using EXT4 Having Problems?

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