Re: Filesystem corruption

2007-05-30 Thread David Masover
On Tuesday 29 May 2007 07:36:13 Toby Thain wrote: but you can't mention using reiserfs in mixed company without someone accusing you of throwing your data away. People who repeat this rarely have any direct experience of Reiser; they repeat what they've heard; like all myths and

Re: Filesystem corruption

2007-05-30 Thread David Masover
On Wednesday 30 May 2007 11:42:01 Toby Thain wrote: But does it cause data loss? One usually sees claims that reiserfs ate my data, or I heard reiserfs ate somebody's data, but without supplying a root cause - bad memory? powerfail? bad disk? etc. Power failure shouldn't kill a filesystem,

Re: Filesystem corruption

2007-05-30 Thread David Masover
On Wednesday 30 May 2007 12:22:17 devsk wrote: I have used R4 for a year now and I have had to reset my PC, troubleshooting problems with vmware/mythtv/cisco vpn client/nvidia, so many times that its not even funny! And R4 didn't give me any problems even once. It boots right up, without any

Re: Filesystem corruption

2007-05-30 Thread David Masover
On Wednesday 30 May 2007 11:02:26 Vladimir V. Saveliev wrote: Ordinarily I like to help debug things, but not at the risk of my data. Maybe I'll try again later, and see if I can reproduce it in a VM or somewhere safe... that would be great, thanks Keep in mind, it's unlikely, given I

Reiser4 crash (?)

2006-10-06 Thread David Masover
Finally set up network logging: kernel - syslog-ng - TCP (crossover) - syslog-ng (other box) - log file. This time, I actually caught something from the crash. It may be hardware-related, but I thought I'd report it here this time because the crash was definitely in Reiser4 code. This may or

BitTorrent+Reiser4: curiouser and curiouser

2006-09-22 Thread David Masover
Azureus had a problem. Once it got up to a good clip downloading, it would thrash the disk. It would thrash the disk, and the system, so hard that even web browsing was difficult, due to disk access being many, many times slower than Internet access, even an Internet which is being hogged by

Re: BitTorrent+Reiser4: curiouser and curiouser

2006-09-22 Thread David Masover
Konstantin Münning wrote: David Masover wrote: (snip) It shouldn't be touching the disk AT ALL when there's over a gig of FREE RAM (as in, neither buffer nor cache nor actually used yet), and the file I'm attempting to download is less than 200 megs. I tried an strace, but as I am not at all

Re: BitTorrent+Reiser4: curiouser and curiouser

2006-09-22 Thread David Masover
Alexander Zarochentsev wrote: I guess futex (, FUTEX_WAIT, ) calls can be ignored in this analysis. They just wait another threat to call futex(, FUTEX_WAKE, ). Interesting to find that thread and look what it was doing before FUTEX_WAKE? Or FUTEX_WAIT returns ETIMEDOUT? It probably would

Re: reiser4 resize

2006-09-21 Thread David Masover
Alexey Polyakov wrote: On 9/20/06, Łukasz Mierzwa [EMAIL PROTECTED] wrote: It's been proven that flushes are doing much more job then they should. Not so long ago someone send a trace of block device io accesess during reiser4 work and someone anylized it and said that some files or parts of

Re: reiser4 resize

2006-09-21 Thread David Masover
Alexey Polyakov wrote: On 9/19/06, David Masover [EMAIL PROTECTED] wrote: When I have over a gig of RAM free (not even buffer/cache, but _free_), and am trying to download anything over BitTorrent, even if it's less than 200 megs, the disk thrashes so badly that the system is really only

Re: reiser4 resize

2006-09-19 Thread David Masover
Vladimir V. Saveliev wrote: Hello On Tuesday 19 September 2006 05:12, Jack Byer wrote: Short summary: Will a resize program for reiser4 be available within the next six months? Currently nobody works on that. So, I guess it is not very likely that reiser4.resize will be created within next

Re: v3 rebuild-tree left system in unusable state because of space shortage

2006-09-15 Thread David Masover
Vladimir V. Saveliev wrote: while there is no fix currently for this problem you can solve the problem by expanding underlaying device. Just curious, could it also be fixed by mounting the FS, freeing up some space, then retrying the FSCK? Or is the FS unusable?

Re: Relocating files for faster boot/start-up on reiser(fs/4)

2006-09-15 Thread David Masover
Quinn Harris wrote: On Thursday 14 September 2006 23:15, Toby Thain wrote: On 14-Sep-06, at 6:23 PM, David Masover wrote: Quinn Harris wrote: On Thursday 14 September 2006 13:55, David Masover wrote: ... That is a good point. Recording the disk layout before and after to compare relative

Re: reiser4: mount -o remount,ro / causes error on reboot

2006-09-10 Thread David Masover
Peter wrote: Using: gentoo kernel 2.6.17.11 with beyond patchset reiser patch 2.6.17-3 reiser4progs 1.0.5 At the end of the gentoo shutdown script is a short function which remounts / as ro. There's also one in the Gentoo startup script, which attempts to remount / ro, then remount it rw. I

Re: FEATURE Req: integrate badblocks check into fsck.reiser*

2006-09-07 Thread David Masover
Ric Wheeler wrote: David Masover wrote: Hans Reiser wrote: Ric Wheeler wrote: Having mkfs ignore bad writes would seem to encourage users to create a new file system on a disk that is known to be bad most likely not going to function well. If a user ever has a golden opportunity

Re: FEATURE Req: integrate badblocks check into fsck.reiser*

2006-09-07 Thread David Masover
Ric Wheeler wrote: David Masover wrote: Why do you presume to make this decision for users? It's not a decision that I want to make for users, it is a decision that Hans and his team need to make about how best to spend their limited resources. Agreed. It's not important if it takes

Re: FEATURE Req: integrate badblocks check into fsck.reiser*

2006-09-06 Thread David Masover
Hans Reiser wrote: Ric Wheeler wrote: Having mkfs ignore bad writes would seem to encourage users to create a new file system on a disk that is known to be bad most likely not going to function well. If a user ever has a golden opportunity to toss a drive in the trash, it is when they

Re: Reiser FS will not boot after crash

2006-09-04 Thread David Masover
[EMAIL PROTECTED] wrote: On Mon, 04 Sep 2006 23:33:27 +0400, Vladimir V. Saveliev said: after unclean shutdown journal reply is necessary to return reiserfs to consistent state. Maybe GRUB did not do that? A case can be made that GRUB should be keeping its grubby little paws off the

Re: wrt: checking reiserfs/4 partitions on boot

2006-09-02 Thread David Masover
Peter wrote: On the namesys.com FAQ page, it is recommended that 0 0 be placed at the end of the fstab lines for reiserfs partitions. I have two questions: 1) does this recommendation also apply for reiser4? 2) why is this recommendation made? Is it unnecessary to routinely check reiser

Re: reiser4 corruption on initial copy

2006-09-02 Thread David Masover
Peter wrote: On Fri, 01 Sep 2006 17:35:29 -0500, David Masover wrote: Peter wrote: 2) I did run badblocks on the dest, and it was clean. 3) I am using the patch from 2.6.17.3 and in my kernel, I have full preempt and cfq scheduling. What about the kernel on the livecd? Anticipatory

Re: FEATURE Req: integrate badblocks check into fsck.reiser*

2006-09-01 Thread David Masover
Vladimir V. Saveliev wrote: Hello On Friday 01 September 2006 22:23, Peter wrote: Perhaps this has been mentioned before. If so, sorry. IMHO, it would be useful to integrate a call to badblocks in the fsck/mkfs.reiser* programs so that more thorough disk checking can be done at format time.

Re: reiser4 corruption on initial copy

2006-09-01 Thread David Masover
Peter wrote: 2) I did run badblocks on the dest, and it was clean. 3) I am using the patch from 2.6.17.3 and in my kernel, I have full preempt and cfq scheduling. What about the kernel on the livecd?

Re: FEATURE Req: integrate badblocks check into fsck.reiser*

2006-09-01 Thread David Masover
Peter wrote: On Fri, 01 Sep 2006 17:27:20 -0500, David Masover wrote: snip... both mkfs.reiserfs and fsck.reiserfs have -B option to accept list of bad blocks. We thought that should be enough. It really should. Why bother with a patch? Just write a wrapper script that runs badblocks

Re: Reiser4 und LZO compression

2006-08-31 Thread David Masover
Clemens Eisserer wrote: But speaking of single threadedness, more and more desktops are shipping with ridiculously more power than people need. Even a gamer really Will the LZO compression code in reiser4 be able to use multi-processor systems? Good point, but it wasn't what I was talking

Re: Reiser4 und LZO compression

2006-08-30 Thread David Masover
PFC wrote: Maybe, but Reiser4 is supposed to be a general purpose filesystem talking about its advantages/disadvantages wrt. gaming makes sense, I don't see a lot of gamers using Linux ;) There have to be some. Transgaming seems to still be making a successful business out of making

Re: Reiser4 und LZO compression

2006-08-29 Thread David Masover
Nigel Cunningham wrote: Hi. On Tue, 2006-08-29 at 06:05 +0200, Jan Engelhardt wrote: Hmm. LZO is the best compression algorithm for the task as measured by the objectives of good compression effectiveness while still having very low CPU usage (the best of those written and GPL'd, there is a

Re: Reiser4 und LZO compression

2006-08-29 Thread David Masover
PFC wrote: Would it be, by any chance, possible to tweak the thing so that reiserfs plugins become kernel modules, so that the reiserfs core can be put in the kernel without the plugins slowing down its acceptance ? I don't see what this has to do with cryptoapi plugins -- those are

Re: Reiser4 und LZO compression

2006-08-29 Thread David Masover
Gregory Maxwell wrote: On 8/29/06, David Masover [EMAIL PROTECTED] wrote: [snip] Conversely, compression does NOT make sense if: - You spend a lot of time with the CPU busy and the disk idle. - You have more than enough disk space. - Disk space is cheaper than buying enough CPU

Re: Reiser4 und LZO compression

2006-08-29 Thread David Masover
Hans Reiser wrote: David Masover wrote: John Carmack is pretty much the only superstar programmer in video games, and after his first fairly massive attempt to make Quake 3 have two threads (since he'd just gotten a dual-core machine to play with) actually resulted in the game running some 30

Re: Reiser4 und LZO compression

2006-08-29 Thread David Masover
Toby Thain wrote: Gamer systems, whether from coder's or player's p.o.v., would appear fairly irrelevant to reiserfs and this list. I'd trust Carmack's eye candy credentials but doubt he has much to say about filesystems or server threading... Maybe, but Reiser4 is supposed to be a general

Re: Reiser4 und LZO compression

2006-08-27 Thread David Masover
Andrew Morton wrote: On Sun, 27 Aug 2006 04:34:26 +0400 Alexey Dobriyan [EMAIL PROTECTED] wrote: The patch below is so-called reiser4 LZO compression plugin as extracted from 2.6.18-rc4-mm3. I think it is an unauditable piece of shit and thus should not enter mainline. Like lib/inflate.c

Re: [PATCH] reiserfs: eliminate minimum window size for bitmap searching

2006-08-22 Thread David Masover
Jeff Mahoney wrote: When a file system becomes fragmented (using MythTV, for example), the bigalloc window searching ends up causing huge performance problems. In a file system presented by a user experiencing this bug, the file system was 90% free, but no 32-block free windows existed on

Re: problem with reiser3

2006-08-22 Thread David Masover
Marcos Dione wrote: On Mon, Aug 21, 2006 at 08:23:30PM -0500, David Masover wrote: it would be better to create a backup on a spare bigger partition using dd_rescue (pad not recoverable zones with zeroes), then run fsck on the created image. unluckly I can't. it's a 160 GiB partition and I

Re: [PATCH] reiserfs: eliminate minimum window size for bitmap searching

2006-08-22 Thread David Masover
Jeff Mahoney wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David Masover wrote: Jeff Mahoney wrote: When a file system becomes fragmented (using MythTV, for example), the bigalloc window searching ends up causing huge performance problems. In a file system presented by a user

Re: problem with reiser3

2006-08-21 Thread David Masover
Marcos Dione wrote: it would be better to create a backup on a spare bigger partition using dd_rescue (pad not recoverable zones with zeroes), then run fsck on the created image. unluckly I can't. it's a 160 GiB partition and I don't have spare space. How much spare space do you have?

Re: reiserfs and IDE write cache

2006-08-18 Thread David Masover
Francisco Javier Cabello wrote: Hello, I have been 'googling' and I have found a lot of people warning about the problems with IDE write cache and journaling filesystems. These problems exist with ANY filesystem, journaling or not. They also exist with no filesystem at all. Should I

Re: some testing questions

2006-08-15 Thread David Masover
Hans Reiser wrote: Ingo Bormuth wrote: #df: /dev/hda8 6357768 3478716 2879052 55% /cache Before doing so, the partition was 90% full. The performance difference between 90% full and 55% full will be large on every filesystem. When we ship a repacker, that will be less

Re: the 'official' point of view expressed by kernelnewbies.org

2006-08-15 Thread David Masover
Edward Shishkin wrote: Tom Reinhart wrote: Anyone with serious need for data integrity already uses RAID, so why add brand new complexity for a solved problem? RAID is great at recovering data, but not detecting errors. File system can detect errors with checksum. What is missing is an API

Re: the 'official' point of view expressed by kernelnewbies.org

2006-08-15 Thread David Masover
Edward Shishkin wrote: David Masover wrote: Edward Shishkin wrote: Tom Reinhart wrote: Anyone with serious need for data integrity already uses RAID, so why add brand new complexity for a solved problem? RAID is great at recovering data, but not detecting errors. File system can detect

Re: The Infamous Reiser4-randomly-blocks-for-ages-and-writes-the-hd-continously-in-the-mean-while now with a btrace log! (hope it helps)

2006-08-10 Thread David Masover
Vesa Kaihlavirta wrote: Incidentally, I've witnessed similar behaviour in various simple tasks, e.g. writing entries to an sqlite database, or receiving mail from pop3 in thunderbird. Sounds like fsync issues. That is being worked on.

Re: The Infamous Reiser4-randomly-blocks-for-ages-and-writes-the-hd-continously-in-the-mean-while now with a btrace log! (hope it helps)

2006-08-10 Thread David Masover
Łukasz Mierzwa wrote: Dnia Thu, 10 Aug 2006 20:48:59 +0200, David Masover [EMAIL PROTECTED] napisał: Vesa Kaihlavirta wrote: Incidentally, I've witnessed similar behaviour in various simple tasks, e.g. writing entries to an sqlite database, or receiving mail from pop3 in thunderbird

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-09 Thread David Masover
Jan Engelhardt wrote: Yes, it looks like a business of node plugin, but AFAIK, you objected against such checks: Did I really? Well, I think that allowing users to choose whether to checksum or not is a reasonable thing to allow them. I personally would skip the checksum on my computer, but

Re: article abour Reiser4 on linux.com

2006-08-09 Thread David Masover
Andreas Schäfer wrote: On 02:28 Wed 09 Aug , Hans Reiser wrote: Unfortunately, it's not one of which editors approve. It too easily looks as though the writer is being influenced by the source. If I were to do so, I'd risk being banned from publication. Uhm... interesting. It's not

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-09 Thread David Masover
Hans Reiser wrote: Pavel Machek wrote: Yes, I'm afraid redundancy/checksums kill write speed, they kill write speed to cache, but not to disk our compression plugin is faster than the uncompressed plugin. Regarding cache, do we do any sort of consistency checking for RAM, or do

Re: Ebuild/rpm/deb repo's (was Re: reiser4 can now bear with filled fs, looks stable to me...)

2006-08-07 Thread David Masover
Christian Trefzer wrote: On Sun, Aug 06, 2006 at 04:23:16PM +0200, Maciej Sołtysiak wrote: There also is an issue with grub. The kernel alone is fine for creating partitions (or loop devices) but with grub not patched we can't install boot partitions. No biggy, I guess, but still a problem.

Re: Ebuild/rpm/deb repo's (was Re: reiser4 can now bear with filled fs, looks stable to me...)

2006-08-07 Thread David Masover
Maciej Sołtysiak wrote: Hello David, hi I have built today an r4-patched ubuntu kernel package (yes, debs!) Sounds good. I don't have an ubuntu to test with at the moment, though. Please note, that this is done all under virtualization (Microsoft Virtual PC). Not to nitpick, but isn't

Re: Ebuild/rpm/deb repo's (was Re: reiser4 can now bear with filled fs, looks stable to me...)

2006-08-07 Thread David Masover
Maciej Sołtysiak wrote: Hello David, Tuesday, August 8, 2006, 1:23:01 AM, you wrote: Sounds good. I don't have an ubuntu to test with at the moment, though. Well, both MS Virtual PC and VMWare are free of charge, so installing is a real snap. Under what, though? I don't want MS crap on my

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-07 Thread David Masover
[EMAIL PROTECTED] wrote: It seems that finding all the bits and pieces to do ext3 on-line expansion has been a study in obfuscation. Somewhat surprising since this feature is a must for enterprise class storage management. Not really. Having people who can dig through the obfuscation is

Re: Another article abour Reiser4 on linux.com

2006-08-06 Thread David Masover
Lexington Luthor wrote: Bernd Schubert wrote: An alternative might be a reiser4 fuse port. Has some advantages: Please please no. The kernel people will use that as an argument for keeping it out of the kernel. They'll use anything as an argument for keeping it out of the kernel. This one

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-06 Thread David Masover
Pavel Machek wrote: On Tue 01-08-06 11:57:10, David Masover wrote: Horst H. von Brand wrote: Bernd Schubert [EMAIL PROTECTED] wrote: While filesystem speed is nice, it also would be great if reiser4.x would be very robust against any kind of hardware failures. Can't have both. Why not? I

Re: Another article abour Reiser4 on linux.com

2006-08-05 Thread David Masover
Tassilo Horn wrote: [1] http://www.linux.com/article.pl?sid=06/07/31/1548201 From the article: To complicate matters, Reiser4's approach lands the filesystem in the middle of a longstanding convention of avoiding plugins in the kernel, mainly to avoid architectural complications, but also

Re: Another article abour Reiser4 on linux.com

2006-08-05 Thread David Masover
Clay Barnes wrote: I like using a term that is already in an accepted part of the kernel. Extensions might smack of plugins a bit much, and we're trying to avoid just doing a s/plugins/extensions/ of the arguments we're seeing now. We could do that with almost anything: Or just modules...

Re: Another article abour Reiser4 on linux.com

2006-08-05 Thread David Masover
Clay Barnes wrote: I think the core thing we have to have to win this argument is a) A word that isn't *instantly* associated with banned things. That'd be nice. b) The ability to point to the technology to point to the design and say look, Look, it's *impossible* to use this design to put

Re: Another article abour Reiser4 on linux.com

2006-08-05 Thread David Masover
TongKe Xue wrote: A really stupid question ... why not put Reiser4 in one of the BSDs? And after it's got mainstream use, if it proves its worth, there'll be more pressure for Linux to adopt. It will likely take far more work to port it to BSD than it will to be included in Linux. And

Re: Checksumming blocks? [was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion]

2006-08-04 Thread David Masover
Russell Leighton wrote: Is there a recovery mechanism, or do you just be happy you know there is a problem (and go to backup)? You probably go to backup anyway. The recovery mechanism just means you get to choose the downtime to restore from backup (if there is downtime), versus being

Re: reiser4: maybe just fix bugs?

2006-08-04 Thread David Masover
Theodore Tso wrote: On Tue, Aug 01, 2006 at 11:55:57AM -0500, David Masover wrote: If I understand it right, the original Reiser4 model of file metadata is the file-as-directory stuff that caused such a furor the last big push for inclusion (search for Silent semantic changes in Reiser4

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-08-04 Thread David Masover
Horst H. von Brand wrote: Vladimir V. Saveliev [EMAIL PROTECTED] wrote: On Tue, 2006-08-01 at 17:32 +0200, Łukasz Mierzwa wrote: What fancy (beside cryptocompress) does reiser4 do now? it is supposed to provide an ability to easy modify filesystem behaviour in various aspects without

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-01 Thread David Masover
Alan Cox wrote: Ar Maw, 2006-08-01 am 16:52 +0200, ysgrifennodd Adrian Ulrich: WriteCache, Mirroring between 2 Datacenters, snapshotting.. etc.. you don't need your filesystem beeing super-robust against bad sectors and such stuff because: You do it turns out. Its becoming an issue more and

Re: reiser4: maybe just fix bugs?

2006-08-01 Thread David Masover
Vladimir V. Saveliev wrote: Do you think that if reiser4 supported xattrs - it would increase its chances on inclusion? Probably the opposite. If I understand it right, the original Reiser4 model of file metadata is the file-as-directory stuff that caused such a furor the last big push for

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-01 Thread David Masover
Horst H. von Brand wrote: Bernd Schubert [EMAIL PROTECTED] wrote: While filesystem speed is nice, it also would be great if reiser4.x would be very robust against any kind of hardware failures. Can't have both. Why not? I mean, other than TANSTAAFL, is there a technical reason for them

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-08-01 Thread David Masover
Christian Trefzer wrote: On Mon, Jul 31, 2006 at 10:57:35AM -0500, David Masover wrote: Wil Reichert wrote: Any idea how the fragmentation resulting from re-syncing the tree affects performance over time? Yes, it does affect it a lot. I have no idea how much, and I've never benchmarked

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of viewexpressed by kernelnewbies.org regarding reiser4 inclusion]

2006-08-01 Thread David Masover
Theodore Tso wrote: Ah, but as soon as the repacker thread runs continuously, then you lose all or most of the claimed advantage of wandering logs. [...] So instead of a write-write overhead, you end up with a write-read-write overhead. This would tend to suggest that the repacker should

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-01 Thread David Masover
Alan Cox wrote: Ar Maw, 2006-08-01 am 11:44 -0500, ysgrifennodd David Masover: Yikes. Undetected. Wait, what? Disks, at least, would be protected by RAID. Are you telling me RAID won't detect such an error? Yes. RAID deals with the case where a device fails. RAID 1 with 2 disks can

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-01 Thread David Masover
Gregory Maxwell wrote: On 8/1/06, David Masover [EMAIL PROTECTED] wrote: Yikes. Undetected. Wait, what? Disks, at least, would be protected by RAID. Are you telling me RAID won't detect such an error? Unless the disk ECC catches it raid won't know anything is wrong. This is why ZFS

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-08-01 Thread David Masover
Ric Wheeler wrote: Alan Cox wrote: Ar Maw, 2006-08-01 am 16:52 +0200, ysgrifennodd Adrian Ulrich: WriteCache, Mirroring between 2 Datacenters, snapshotting.. etc.. you don't need your filesystem beeing super-robust against bad sectors and such stuff because: You do it turns out. Its

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of viewexpressed by kernelnewbies.org regarding reiser4 inclusion]

2006-08-01 Thread David Masover
Ian Stirling wrote: David Masover wrote: David Lang wrote: On Mon, 31 Jul 2006, David Masover wrote: Oh, I'm curious -- do hard drives ever carry enough battery/capacitance to cover their caches? It doesn't seem like it would be that hard/expensive, and if it is done that way, then I

Re: reiser4: maybe just fix bugs?

2006-08-01 Thread David Masover
Nate Diller wrote: On 8/1/06, David Masover [EMAIL PROTECTED] wrote: Vladimir V. Saveliev wrote: I could be entirely wrong, though. I speak for neither Hans/Namesys/reiserfs nor LKML. Talk amongst yourselves... i should clarify things a bit here. yes, hans' goal

Re: reiser4 can now bear with filled fs, looks stable to me...

2006-07-31 Thread David Masover
Hans Reiser wrote: I think that most of our problem is that we are too socially insulated from lkml. They are a herd, and decide things based on what thoughts echo most loudly. To be fair, it's not the whole lkml you have to convince, just the few people directly responsible for filesystems

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-31 Thread David Masover
Wil Reichert wrote: =) That was sorta the plan. Any idea how the fragmentation resulting from re-syncing the tree affects performance over time? Try to post replies at the bottom, or below the context. Yes, it does affect it a lot. I have no idea how much, and I've never benchmarked it,

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-31 Thread David Masover
Jan-Benedict Glaw wrote: On Mon, 2006-07-31 17:59:58 +0200, Adrian Ulrich [EMAIL PROTECTED] wrote: A colleague of mine happened to create a ~300gb filesystem and started to migrate Mailboxes (Maildir-style format = many small files (1-3kb)) to the new LUN. At about 70% the filesystem ran out of

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-31 Thread David Masover
Matthias Andree wrote: Adrian Ulrich schrieb am 2006-07-31: Why are a lot of Solaris-people using (buying) VxFS? Maybe because UFS also has such silly limitations? (..and performs awkward with trillions of files..?..) Well, such silly limitations... looks like they are mostly hot air spewn

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-31 Thread David Masover
Jan-Benedict Glaw wrote: On Mon, 2006-07-31 12:17:12 -0700, Clay Barnes [EMAIL PROTECTED] wrote: On 20:43 Mon 31 Jul , Jan-Benedict Glaw wrote: On Mon, 2006-07-31 20:11:20 +0200, Matthias Andree [EMAIL PROTECTED] wrote: Jan-Benedict Glaw schrieb am 2006-07-31: [Crippled DMA writes]

Re: the 'official' point of view expressed by kernelnewbies.orgregarding reiser4 inclusion

2006-07-31 Thread David Masover
David Lang wrote: On Mon, 31 Jul 2006, David Masover wrote: Probably. By the time a few KB of metadata are corrupted, I'm reaching for my backup. I don't care what filesystem it is or how easy it is to edit the on-disk structures. This isn't to say that having robust on-disk structures

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-31 Thread David Masover
Alan Cox wrote: Ar Llu, 2006-07-31 am 17:00 -0400, ysgrifennodd Gregory Maxwell: Are you sure that you aren't commenting on cases where Reiser3 alerts the user to a critical data condition (via a panic) which leads to a trouble report while ext3 ignores the problem which suppresses the

Re: reiser4 can now bear with filled fs, looks stable to me...

2006-07-31 Thread David Masover
Maciej Sołtysiak wrote: Hello David, - it is more expensive to: a) succeed at kernel inclusion b) argue c) waste time You must be new here... Options B and C are all that ever seems to happen when reiserfs-list and lkml collide. Is option A possible? The speed of a nonworking

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
Matthias Andree wrote: On Mon, 31 Jul 2006, Nate Diller wrote: this is only a limitation for filesystems which do in-place data and metadata updates. this is why i mentioned the similarities to log file systems (see rosenblum and ousterhout, 1991). they observed an order-of-magnitude

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
Theodore Tso wrote: On Mon, Jul 31, 2006 at 08:31:32PM -0500, David Masover wrote: So you use a repacker. Nice thing about a repacker is, everyone has downtime. Better to plan to be a little sluggish when you'll have 1/10th or 1/50th of the users than be MUCH slower all the time. Actually

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
Timothy Webster wrote: Different users have different needs. I'm having trouble thinking of users who need an FS that doesn't need a repacker. The disk error problem, though, you're right -- most users will have to get bitten by this, hard, at least once, or they'll never get the

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of viewexpressed by kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
David Lang wrote: On Mon, 31 Jul 2006, David Masover wrote: Oh, I'm curious -- do hard drives ever carry enough battery/capacitance to cover their caches? It doesn't seem like it would be that hard/expensive, and if it is done that way, then I think it's valid to leave them on. You could

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of viewexpressed by kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
David Lang wrote: On Mon, 31 Jul 2006, David Masover wrote: And perhaps a really good clustering filesystem for markets that require NO downtime. Thing is, a cluster is about the only FS I can imagine that could reasonably require (and MAYBE provide) absolutely no downtime. Everything

Re: Solaris ZFS on Linux [Was: Re: the 'official' point of viewexpressedby kernelnewbies.org regarding reiser4 inclusion]

2006-07-31 Thread David Masover
David Lang wrote: On Mon, 31 Jul 2006, David Masover wrote: Aha, so back to the usual argument: UPS! It takes a fraction of a second to flush that cache. which does absolutly no good if someone trips over the power cord, the fuse blows in the power supply, someone yanks the drive out

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-30 Thread David Masover
Łukasz Mierzwa wrote: Dnia Sat, 29 Jul 2006 20:31:59 +0200, David Masover [EMAIL PROTECTED] napisał: Nikita Danilov wrote: As you see, ext2 code already has multiple file plugins, with persistent plugin id (stored in i_mode field of on-disk struct ext2_inode). Aha! So here's another

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-30 Thread David Masover
Christian Trefzer wrote: On Sun, Jul 30, 2006 at 11:39:42PM +0200, Christian Trefzer wrote: In order to avoid having to pull the whole tree via rsync again, you might want to grab my script from the list and adapt it to your needs. Of course, you can tar it up manually instead. Silly me, but

Re: reiser4 can now bear with filled fs, looks stable to me...

2006-07-30 Thread David Masover
Christian Trefzer wrote: Hi, I booted 2.6.18-rc2-mm1 today and later filled up my /opt partition by accident, and guess what, reiser4 did not screw up : D Hmm, I'm curious, though... How does it react to a few billion files? Sorry, I can't test this, but I will be testing MythTV, if not

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-29 Thread David Masover
Arjan van de Ven wrote: Most users not only cannot patch a kernel, they don't know what a patch is. It most certainly does. obviously you can provide complete kernels, including precompiled ones. Most distros have a yum or apt or similar tool to suck down packages, it's trivial for

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-29 Thread David Masover
Hans Reiser wrote: David Masover wrote: If indeed it can be changed easily at all. I think the burden is on you to prove that you can change it to be more generic, rather than saying Well, we could do it later, if people want us to... None of the filesystems other than reiser4 have any

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-29 Thread David Masover
Nikita Danilov wrote: As you see, ext2 code already has multiple file plugins, with persistent plugin id (stored in i_mode field of on-disk struct ext2_inode). Aha! So here's another question: Is it fair to ask Reiser4 to make its plugins generic, or should we be asking ext2/3 first?

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-29 Thread David Masover
Sarath Menon wrote: On Saturday 29 July 2006 23:41, David Masover wrote: I know Gentoo handles this automatically (emerge nvidia-kernel). I hate to say this again, but its not automatically. It requires more My point is, there's a fairly large group of users who would be willing to do

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-28 Thread David Masover
Horst H. von Brand wrote: Jeff Garzik [EMAIL PROTECTED] wrote: [...] It is then simple to follow that train of logic: why not make it easy to replace the directory algorithm [and associated metadata]? or the file data space management algorithms? or even the inode handling? why not allow

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-28 Thread David Masover
. And no one else cares what your finances are. Not out of compassion, but out of practicality. For instance, it would be a huge financial benefit to me if the kernel displayed, in big bold letters while booting, that DAVID MASOVER WROTE THIS! (I'm sure Linus knows what I'm talking about

Re: metadata plugins (was Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion)

2006-07-28 Thread David Masover
Hans Reiser wrote: plugins if not for us. Our plugins affect no one else. Our self-contained code should not be delayed because other people delayed And at the moment, I can still use Reiser4. If I ever make a distro, I will include Reiser4 support, probably as the default FS. That will

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-27 Thread David Masover
Jeff Garzik wrote: Pavel Machek wrote: Hi! of the story for me. There's nothing wrong about focusing on newer code, but the old code needs to be cared for, too, to fix remaining issues such as the can only have N files with the same hash value. Requires a disk format change, in a filesystem

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-27 Thread David Masover
Maciej Sołtysiak wrote: Hello David, Thursday, July 27, 2006, 3:19:15 AM, you wrote: I'm not arguing for closed source, I'm just saying that once you open, there's no going back. Many times it's a good thing, but sometimes you A sidenote. Reiser4 is open and still we don't see people

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-26 Thread David Masover
Matthias Andree wrote: On Tue, 25 Jul 2006, David Masover wrote: Matthias Andree wrote: On Tue, 25 Jul 2006, Denis Vlasenko wrote: I, on the contrary, want software to impose as few limits on me as possible. As long as it's choosing some limit, I'll pick the one with fewer surprises

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-25 Thread David Masover
Matthias Andree wrote: On Tue, 25 Jul 2006, Denis Vlasenko wrote: I, on the contrary, want software to impose as few limits on me as possible. As long as it's choosing some limit, I'll pick the one with fewer surprises. Running out of inodes would be pretty surprising for me. But then,

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-25 Thread David Masover
Russell Cattelan wrote: On Sun, 2006-07-23 at 01:20 -0600, Hans Reiser wrote: Jeff, I think that a large part of what is going on is that any patch that can be read in 15 minutes gets reviewed immediately, and any patch that is worked on for 5 years and then takes a week to read gets [...] It

Re: Viewing files as directories

2006-07-25 Thread David Masover
Timothy Webster wrote: WARNING, a users point of view ;) Everything is a file, including a directory. Being able to view files as directories is not just a nice to have thing. It is actually required if we are going to manage changesets of odf files. The lkml people will tell you that this

Re: ReiserFS v3 choking when free space falls below 10% - FIXED

2006-07-25 Thread David Masover
Mike Benoit wrote: Thanks for all your hard work, I'm sure many other MythTV users will be appreciate it. As a future MythTV user a bit late to this discussion, I'm curious -- was this Reiser3 or 4? Are there any known MythTV issues with v4? I say this because the box with my capture card is

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-25 Thread David Masover
Horst H. von Brand wrote: 18GiB = 18 million KiB, you do have a point there. But 40 million files on that, with some space to spare, just doesn't add up. Right, ok... Here's a quick check of my box. I've explicitly stated which root-level directories to search, to avoid nfs mounts, chrooted

Re: the 'official' point of view expressed by kernelnewbies.org regarding reiser4 inclusion

2006-07-25 Thread David Masover
Hans Reiser wrote: to use as his default. Now that we paid the 5 year development price tag to get everything as plugins, we can now upgrade in littler pieces than any other FS. Hmm, I need a buzz phrase, its not extreme programming, maybe moderate programming. Does that sound exciting to

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