<linux-2.6.30_rc6-r5 & reiserfs: don't do it - 2.6.33 UPDATE

genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

As I understood it, reiserfs is atm undergoing a lot of changes due to the effort of killing the Big Kernel Lock. That will make it a tad faster but more importantly, still maintainable in the future.

Now, despite a flow of dmesg warnings (and 'mini panics' of the kernel starting with rc3) I was still able to boot (though not using) 2.6.30 kernels on reiserfs until about 2.6.30-rc5, where reiserfs partitions aren't mountable anymore.

Right now reiserfs users can only stay away from 2.6.30, and considering the huge changes being applied to the FS code, paranoid ones should probably wait a few kernel revisions more before thinking of an upgrade.

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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic

Sadako · Posted: Mon May 18, 2009 3:53 pm Post subject:

That's me screwed...
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mikkoc · Apprentice Joined: 24 May 2007 Posts: 229

for me these problems with reiserfs were fixed in rc6, although my / isn't reiserfs, just /usr/portage

kernelOfTruth · Posted: Mon May 18, 2009 4:27 pm Post subject:

there are still some errors on rc6 !

man - reiserfs WAS the most stable and secure filesystem on linux previously (for me) and now they're screwing everything up only for 4-10% more speed and removing the BKL ?

great - that way I could also migrate to XFS :roll:

and Reiser4 is still NOT in the kernel :evil:

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martin.k · Posted: Mon May 18, 2009 7:08 pm Post subject:

genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

I'm already thinking of moving over to another fs, as KMS and DRM improvements are quite important to me and my i915 chip...
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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1025

reiserfs has gone to pieces for now.
too good cause am moving my system to reiser4(great filesystem)
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SlashBeast · Posted: Tue May 19, 2009 7:25 am Post subject:

reiserfs work for me on rc3, rc4 and rc6 (rc5 not tested). Without any problems.
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Rion · Posted: Tue May 19, 2009 8:29 am Post subject:

wfm on rc5 but its zen
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genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1025

keenblade · Veteran Joined: 03 Oct 2004 Posts: 1007

genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

I would have gone the ext4 route already hadn't there been the data loss afair several weeks ago. What's the current state there?

Maybe it's time for some fs tinkering again... thinking of giving btrfs a chance on /usr/portage

reiser4 not in mainline kernel is also holding me off right now. What's the current state of it? Are there well-tested official upstream patches that will definitely work with 2.6.30* and reiser4progs, that I could include into my own kernel patchset? Last time I checked, which was several months ago, reiser4 seemed to be in a rather sorry state with different patches floating around working only with specific versions of reiser4progs etc...
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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1025

Need4Speed · Guru Joined: 06 Jun 2004 Posts: 497

DaggyStyle · Advocate Joined: 22 Mar 2006 Posts: 3798

wait, is that reiserfs or reiserfs4?
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kernelOfTruth · Posted: Tue May 19, 2009 3:08 pm Post subject:

Hey !

great news !

Edward posted the following:

SlashBeast · Posted: Tue May 19, 2009 4:15 pm Post subject:

pappy_mcfae · Watchman Joined: 27 Dec 2007 Posts: 5518 Location: Dallas

I'm running rc6 even as I type this message. If there is a reiserfs issue, I don't see it here.

Blessed be!
Pappy
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genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

I have installed rc6-r5 now and it finally works again. It seems the latest reiserfs fixes from 2 days ago did it. No dmesg overflow with xattr messages (I have xattr disabled, my issues might have arisen of that), no panic at startup.

Maaybe I'll do some backupping now nonetheless.

@SlashBeast: Setting i915.modeset=0 doesn't really seem to be a viable reiserfs fixup.

You must have changed something in addition to get it working.

EDIT: Just to make the changes being made to reiserfs visible: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git&a=search&h=279e677faa775ad16e75c32e1bf4a37f8158bc61&st=commit&s=reiserfs

Also: The really big changes concerning the removal of BKL will only arrive after 2.6.30 which just got updated to the recent state of reiserfs in OpenSuse, patches from Jeff Mahoney. So, once the big BKL fun begins, we may have already reiserfs4 in-kernel working on our patitions.

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pappy_mcfae · Watchman Joined: 27 Dec 2007 Posts: 5518 Location: Dallas

Amazingly enough, I found a way to make the problem happen. It seems that if you just enable reiserfs with no added goodies, it will fail. If someone would like to verify, perhaps it's time to write a bug report.

Blessed be!
Pappy
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genstorm · Veteran Joined: 05 Apr 2007 Posts: 1840 Location: Austria

That has also been the case on my system - i have enabled reiserfs without extras ever since, and those problems were -xattrs related. But they have gone at least since git-sources-2.6.30_rc6-r5.

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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1025

reiser4 in kernel?

am going all reiser4 right now. great!
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DigitalCorpus · Apprentice Joined: 30 Jul 2007 Posts: 245

Reiser4 in mainline kernel! w00t :!:

Sweeeeeeet. I hope we can get large file performance fixed. Well not really that, but deletion performance. I cannot delete anythign faster than reading my disks at 10MiB/sec
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tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1025

now my data is on ext4 and i feel they're very safe.
tried reiser4 on root but couldn't get it to boot. googled hard but all the
proposed options didn't work; 'fsck -A -a' and 'fsck -a' etc'

now i feel new.
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