Would you recommend Reiser4?

sirdilznik · l33t Joined: 28 Apr 2005 Posts: 731

I just recently installed a new system running / on reiser4 with cryptcompress (lzo) using my self made sirdilznix LiveCD. Everything went smooth;y and I'm pretty proud of myself (having angband on the LiveCD was a nice touch, I thought :wink:

). So far I'm really happy with the new system. The speed is awesome (though I have to take that with a grain of salt since this is on my new SATA II HD as opposed to a SATA 1 before). The compression is significant, though it isn't going to blow my socks off or anything. If I understand correctly, the lzo compression should be a bit faster while the gzip1 compression should make for a slightly more compressed system. Now I know I'm crazy for trying this on / . On top of that I'm running binutils-2.17.50.0.14 with hashstyles and gcc-4.2.0_pre20070316 all on mm-sources-2.6.21-rc5-mm4

. However there is really little to no risk to me here since I put this on a completely different partition (and actually a completely different physical drive) and left my old system intact. This way even if my new system blows up, I can just boot back into my old one, and beyond that I have my important data stored on dvds too. I may be crazy, but I take precautions and plan for the worst. If my system goes up in flames you sure won't see me crying and making a "I tried all this experimental stuff and my system blew up, damn you all" type post. I know damn well what I'm getting myself into.

It feels good to be back on the bleeding edge. In fact there was actually blood in my case... litellarly , since I cut myself putting in the SATA II controller :lol:

MrVahn · Apprentice Joined: 30 Dec 2006 Posts: 227 Location: Makati

I think reiser4 is not good for my system.

AthlonXP 2GHZ
384MB ram
ATA HDD using LVM2

When I emerge something, especially something big, my system occasionally hangs. This forces me to press the reset button as nothing else could be done. I often have segmentation errors while compiling, recursive errors too. I can't find a solution but after I turn off my PC and try emerging again it would work fine. I guess it is true that reiser4 eats too much CPU power.

predatorfreak · Posted: Sat Apr 07, 2007 6:53 am Post subject:

kernelOfTruth · Posted: Sat Apr 07, 2007 8:04 am Post subject:

MrVahn · Apprentice Joined: 30 Dec 2006 Posts: 227 Location: Makati

Im using a patched up gentoo-sources and reiser4progs 1.0.5 from portage.

MrVahn · Apprentice Joined: 30 Dec 2006 Posts: 227 Location: Makati

kernelOfTruth · Posted: Sat Apr 07, 2007 9:56 am Post subject:

2.6.19 was so - so for me with reiser4, 2.6.20 seems to be much better, are you using vipernicus' patch with 2.6.20 ?

http://vipernicus.nesl247.org/files/patches/2.6.20/viper4/broken-out/reiser4-2.6.20.patch

I can really recommend 2.6.20-viper4 with rsdl 0.25, runs rockstable here, no probs with reiser4 so far (watch out for viper6, there seems to be some probs, I always get "wrong bytes" ... errors)

in addition to that viper4 can be pretty heavily modified :wink:

(I added 4k-stacks patch, exec-shield, sky2-updates, ...) & it still runs that great

if possible you should really consider having a big swap-file (2 GB) and adding more ram, with 2.6.19 I also once got "out of memory errors" because my tmpfs drive in ram for compiling was full & it was swapping heavily :lol:

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vipernicus · Posted: Sat Apr 07, 2007 4:23 pm Post subject:

sirdilznik · l33t Joined: 28 Apr 2005 Posts: 731

kernelOfTruth · Posted: Sat Apr 07, 2007 5:49 pm Post subject:

MrVahn · Apprentice Joined: 30 Dec 2006 Posts: 227 Location: Makati

Count me in. I'm currently compiling a patched-up vanilla*.20 from kernel.org. I hope this one will fix my problems. :crosses fingers:

mbar · Veteran Joined: 19 Jan 2005 Posts: 1990 Location: Poland

Has any of you "fschecked" compressed reiser4 (ccreg40)? I always get many "wrong bytes" errors, they are fixed, but it is kinda annoying. I use 20-viper7 kernel during normal operations and latest Conrad livecd for fsck'ing.

_pF_ · Posted: Fri Apr 13, 2007 9:40 am Post subject:

Well Reiser 4 is well and truly screwed in Viper 7 - and I assume in other 2.6.20 kernels with the same patches.

Various files repeatedly get zeroed-out for no apparent reason. For example, you can be happily compiling then find that the gcc executable has suddenly turned into a bunch of zeros. This is somewhat disconcerting the first time it happens. fsck.reiser4 finds nothing wrong, though.

sirdilznik · l33t Joined: 28 Apr 2005 Posts: 731

_pF_ · Posted: Sun Apr 15, 2007 7:06 pm Post subject: Zero Problem in Reiser 4

Kollin · Posted: Sun Apr 15, 2007 9:37 pm Post subject: Re: Zero Problem in Reiser 4

_pF_ · Posted: Sun Apr 15, 2007 10:25 pm Post subject:

sirdilznik · l33t Joined: 28 Apr 2005 Posts: 731

Slavo · Apprentice Joined: 26 May 2005 Posts: 229

kernelOfTruth · Posted: Tue Apr 24, 2007 9:35 pm Post subject:

tranquilcool · Veteran Joined: 25 Mar 2005 Posts: 1179

i DON'T recommend reiser4.
you always have to patch your kernel with the latest reiser4 patch.
if anything doesn't work right with the patch, you boot then just cry and cry.
it might be the best filesystem in the universe
but that's to me the main and enough reason to avoid it like sin.
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sobers_2002 · Veteran Joined: 16 Mar 2004 Posts: 1128

now that's a reason!
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HecHacker1 · Apprentice Joined: 26 Jun 2003 Posts: 213 Location: UCSD

kernelOfTruth · Posted: Sat Apr 28, 2007 7:04 pm Post subject:

vipernicus · Posted: Sat Apr 28, 2007 7:04 pm Post subject: