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

2006-09-05 Thread Hans Reiser
Ric Wheeler wrote: David Masover wrote: 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

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

2006-09-01 Thread Hans Reiser
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

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

2006-09-01 Thread Hans Reiser
David Masover wrote: 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

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

2006-09-01 Thread Hans Reiser
David Masover wrote: 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

Re: Reiser4 und LZO compression

2006-08-31 Thread Hans Reiser
there can be more than one flush thread per file does not mean it is likely there will be. CPU scheduling of compression/decompression is an area that could use work in the future.For now, just understand that what we do is better than doing nothing.;-/ Edward. lg Clemens 2006/8/30, Hans Reiser

Re: bug: Unable to mount reiserfs from DVD+R

2006-08-31 Thread Hans Reiser
Xuân Baldauf wrote: Hello, I created backup DVDs formatted using reiserfs. However, mounting them is not possible. If I try to mount such a DVD, I get following results: Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc: using ordered data mode Aug 31 01:08:18 notebook2 kernel: ReiserFS: hdc:

Re: [patch] Re: assertion failed: can_hit_entd(ctx, s)

2006-08-30 Thread Hans Reiser
Is it already sent in? If not, can it go out today? Hans Alexander Zarochentsev wrote: Hello, On 30 August 2006 01:10, Andrew James Wade wrote: Hello Alexander, In addition to your patch, I've also applied the patch below. With these two patches the fs is much more stable for me.

Re: Reiser4 und LZO compression

2006-08-30 Thread Hans Reiser
Edward Shishkin wrote: (Plain) file is considered as a set of logical clusters (64K by default). Minimal unit occupied in memory by (plain) file is one page. Compressed logical cluster is stored on disk in so-called disk clusters. Disk cluster is a set of special items (aka ctails, or

Re: Reiser4 und LZO compression

2006-08-29 Thread Hans Reiser
PFC wrote: I made a little benchmark on my own PC (Athlon64 3200+ in 64 bit gentoo) http://peufeu.free.fr/compression.html So, gzip could be used on PCs having very fast processors and very slow harddrives, like Core Duo laptops. However, lzo compresses nearly as much and is

Re: Reiser4 und LZO compression

2006-08-29 Thread Hans Reiser
PFC, thanks for giving us some real data. May I post it to the lkml thread? In essence, LZO wins the benchmarks, and the code is hard to read. I guess I have to go with LZO, and encourage people to take a stab at dethroning it. Hans PFC wrote: I have made a little openoffice spreadsheet

Re: mutt tells me: Fetching message... Bus error

2006-08-29 Thread Hans Reiser
Thanks. Did you run an older version of reiser4 before this? If yes, then this may have been fixed but only showed up for you now. Zam? Hans Posern wrote: Hi. I don't know if this can help you to improve reiser4: On a: Linux jolie 2.6.17.8-reiser4-r3-jolie #1 Tue Aug 15 00:14:45 CEST

Re: Reiser4 und LZO compression

2006-08-29 Thread Hans Reiser
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 30-40% slower than

Re: Possible bug with FIBMAP

2006-08-28 Thread Hans Reiser
zam, please review this unless vs is back. What is the file size? Is there anything special about the file (holes, etc.)? Thanks for finding what I assume is a bug. (I wonder if this has been sporadically affecting use of reiser4 with bootloaders.) Hans Brice Arnould wrote: Hi Two

Re: Reiser4 und LZO compression

2006-08-28 Thread Hans Reiser
Alexey Dobriyan wrote: Reiser4 developers, Andrew, 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. Hmm. LZO is the best compression algorithm for the task as

Re: Reiser4 und LZO compression

2006-08-28 Thread Hans Reiser
Nigel Cunningham wrote: For Suspend2, we ended up converting the LZF support to a cryptoapi plugin. Is there any chance that you could use cryptoapi modules? We could then have a hope of sharing the support It is in principle a good idea, and I hope we will be able to say yes. However, I have

Re: Need help retrieving data

2006-08-24 Thread Hans Reiser
I am very sorry to inform you that our fsck guy is on vacation, and we have no effective backup for him. Hans Brian Davis wrote: Hello, I've paid the 25 dollars, but I haven't gotten a response yet so I'm trying this list I have a disk which has a single partition with reiserfs version

Looking for Kernel hacking or storage systems design and code consulting work

2006-08-23 Thread Hans Reiser
Namesys wrote the Reiser4 filesystem. We are looking for persons who need any kind of kernel hacking or storage system code done. We have a complete team of kernel programmers available. Do you have race conditions you need found, spaghetti code from a predecessor that nobody can do anything

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

2006-08-22 Thread Hans Reiser
Jeff Mahoney wrote: Also, I think the bigalloc behavior just ultimately ends up introducing even more fragmentation on an already fragmented file system. It'll keep contiguous chunks together, but those chunks can end up being spread all over the disk. -Jeff Yes, and almost as important,

Re: Reiser4 stress test.

2006-08-21 Thread Hans Reiser
Thanks Andrew, please be patient and persistent with us at this time, as one programmer is on vacation, and the other is only able to work a few hours a day due to an illness. Hans

Meeting with akpm today

2006-08-17 Thread Hans Reiser
He indicated that he would threaten to include reiser4 in 2.6.19 once we got our fixes back to him (as a way of getting more comments), and that it would most likely go in in 2.6.20 as a result. I told him that most of the team was on vacation or sick, so we would probably be delayed in getting

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

2006-08-16 Thread Hans Reiser
Ric Wheeler wrote: Hans Reiser wrote: I am skeptical that bitflip errors above the storage layer are as common as the ZFS authors say, and their statistics that I have seen somehow lack a lot of detail about how they were gathered. If, say, a device with 100 errors counts as 100 instances

Re: some testing questions

2006-08-15 Thread Hans Reiser
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 true, because we

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

2006-08-15 Thread Hans Reiser
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 between layers for

Re: some testing questions

2006-08-15 Thread Hans Reiser
David Masover wrote: that's 3-7% fragmentation. which is high enough to hurt performance. 50mb/s * 0.01 seconds = amount of transfer a seek costs. He needs a repacker. After we resolve code review issues from akpm.

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

2006-08-15 Thread Hans Reiser
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 Hans Reiser
I am skeptical that bitflip errors above the storage layer are as common as the ZFS authors say, and their statistics that I have seen somehow lack a lot of detail about how they were gathered. If, say, a device with 100 errors counts as 100 instances for their statistics. Well, it would be

Re: Another article abour Reiser4 on linux.com

2006-08-09 Thread Hans Reiser
Bernd Schubert wrote: An alternative might be a reiser4 fuse port. Fuse is not performance effective.

Re: article abour Reiser4 on linux.com

2006-08-09 Thread Hans Reiser
Bruce, I read your article on Linus and GPL V3, and I understand that you are frustrated by his not going for V3. I suspect the main thing that sparked your concern in writing the article about reiser4 is that I am somehow doing something different that affects licensing, and not conforming on

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

2006-08-09 Thread Hans Reiser
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.

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

2006-08-09 Thread Hans Reiser
Edward Shishkin wrote: Hans Reiser wrote: Edward Shishkin wrote: How about we switch to ecc, which would help with bit rot not sector loss? Interesting aspect. Yes, we can implement ECC as a special crypto transform that inflates data. As I mentioned earlier, it is possible via

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

2006-08-09 Thread Hans Reiser
Pavel Machek wrote: On Wed 2006-08-09 02:37:45, 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. Yes, you

Re: article abour Reiser4 on linux.com

2006-08-09 Thread Hans Reiser
Bruce Byfield wrote: Wow. I thought only the judiciary insulated itself from ever learning of its mistakes that well.:-/ Oh, we have ways of learning. As witness this email exchange :) You are right, it is only the judiciary.;-)

Re: Another article abour Reiser4 on linux.com

2006-08-06 Thread Hans Reiser
TongKe Xue wrote: A really stupid question ... why not put Reiser4 in one of the BSDs? The cost to port to BSD is about $500k, and I am not possessed of a lot of money at this time. There is also a license issue, I don't want reiser4 to be BSD licensed, people who want proprietary additions to

article abour Reiser4 on linux.com

2006-08-06 Thread Hans Reiser
Bruce, regarding a longstanding convention of avoiding plugins in the kernel, considering that we are the first and only ones ever to have plugins, and considering the existence of binary kernel modules, I don't think your characterization is accurate. Perhaps there was some licensing controversy

Re: Article on LWN about recent discussions on reiser4 and inclusion

2006-08-04 Thread Hans Reiser
Jorgen Hermanrud Fjeld wrote: The recent discussions regarding reiser4 and possible inclusion have also caught the eye(s) of LWN. I have made the article available for you, non-lwn-subscribers, so that you may have a look at it here http://lwn.net/SubscriberLink/193663/9d2ac03195c775bc/;.

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

2006-08-04 Thread Hans Reiser
Edward Shishkin wrote: How about we switch to ecc, which would help with bit rot not sector loss? Interesting aspect. Yes, we can implement ECC as a special crypto transform that inflates data. As I mentioned earlier, it is possible via translation of key offsets with scale factor 1.

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

2006-08-04 Thread Hans Reiser
Antonio Vargas wrote: On 8/4/06, Edward Shishkin [EMAIL PROTECTED] wrote: Hans Reiser wrote: Edward Shishkin wrote: Matthias Andree wrote: On Tue, 01 Aug 2006, Hans Reiser wrote: You will want to try our compression plugin, it has an ecc for every 64k What kind

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

2006-08-03 Thread Hans Reiser
Marcel Hilzinger wrote: Am Donnerstag, 3. August 2006 10:55 schrieb Marcel Hilzinger: Am Dienstag, 1. August 2006 23:59 schrieb Sander Sweers: On Tue, 2006-08-01 at 23:12 +0200, Maciej Sołtysiak wrote: [...] Are there any on the list who know of rpm's for

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

2006-08-03 Thread Hans Reiser
Edward Shishkin wrote: Matthias Andree wrote: On Tue, 01 Aug 2006, Hans Reiser wrote: You will want to try our compression plugin, it has an ecc for every 64k What kind of forward error correction would that be, Actually we use checksums, not ECC. If checksum is wrong, then run

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

2006-08-02 Thread Hans Reiser
Sander Sweers wrote: With the approval of Namesys I would like to add a new entry to the wiki frontpage. It would be very appreciated.

Re: reiser4: maybe just fix bugs?

2006-08-01 Thread Hans Reiser
Andrew Morton wrote: On Mon, 31 Jul 2006 10:26:55 +0100 Denis Vlasenko [EMAIL PROTECTED] wrote: The reiser4 thread seem to be longer than usual. Meanwhile here's poor old me trying to find another four hours to finish reviewing the thing. Thanks Andrew. The writeout code is ugly,

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

2006-08-01 Thread Hans Reiser
Matthias Andree wrote: Have you ever seen VxFS or WAFL in action? No I haven't. As long as they are commercial, it's not likely that I will. WAFL was well done. It has several innovations that I admire, including quota trees, non-support of fragments for performance reasons, and the

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

2006-08-01 Thread Hans Reiser
Theodore Tso wrote: On Mon, Jul 31, 2006 at 09:41:02PM -0700, David Lang wrote: just becouse you have redundancy doesn't mean that your data is idle enough for you to run a repacker with your spare cycles. to run a repacker you need a time when the chunk of the filesystem that you are

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

2006-08-01 Thread Hans Reiser
Alan, I have seen only anecdotal evidence against reiserfsck, and I have seen formal tests from Vitaly (which it seems a user has replicated) where our fsck did better than ext3s. Note that these tests are of the latest fsck from us: I am sure everyone understands that it takes time for an fsck

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

2006-08-01 Thread Hans Reiser
Ric Wheeler wrote: Alan Cox wrote: You do it turns out. Its becoming an issue more and more that the sheer amount of storage means that the undetected error rate from disks, hosts, memory, cables and everything else is rising. I agree with Alan You will want to try our compression

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

2006-08-01 Thread Hans Reiser
Gregory Maxwell wrote: This is why ZFS offers block checksums... it can then try all the permutations of raid regens to find a solution which gives the right checksum. ZFS performance is pretty bad in the only benchmark I have seen of it. Does anyone have serious benchmarks of it? I suspect

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

2006-07-31 Thread Hans Reiser
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. That none of the shy developers working for me actively post on lkml hurts us quite a bit. It might even be socially effective to shut

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

2006-07-30 Thread Hans Reiser
David Masover wrote: 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

Re: possible recursive locking detected - while running fs operations in loops - 2.6.18-rc2-git5

2006-07-30 Thread Hans Reiser
Jesper Juhl wrote: Thanks. That's a nice little test suite. Yes, it is quite useful, our developers have added it to the regression suite Hans

Re: possible recursive locking detected - while running fs operations in loops - 2.6.18-rc2-git5

2006-07-30 Thread Hans Reiser
Jesper Juhl wrote: On 30/07/06, Hans Reiser [EMAIL PROTECTED] wrote: Jesper Juhl wrote: Thanks. That's a nice little test suite. Yes, it is quite useful, our developers have added it to the regression suite That's nice. Now how about that lock validator message I managed

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

2006-07-30 Thread Hans Reiser
Maciej Sołtysiak wrote: Hmm, what about linspire / freespire ? Linsire is a proud reiser4 debugging sponsor as the website (http://www.namesys.com) says. Wouldn't they want to include reiser4 in their distro first? Not if the mainstream kernel is not going to add it. Hans

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

2006-07-29 Thread Hans Reiser
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 interest in using

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

2006-07-29 Thread Hans Reiser
Jeff Garzik wrote: Using guilt as an argument in a technical discussion is a flashing red sign that says I have no technical rebuttal Wow, that is really nervy. Let's recap this all: * reiser4 has a 2x performance advantage over the next fastest FS (ext3), and when compression ships in a

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

2006-07-29 Thread Hans Reiser
Mike and Lukasz, please post your email to not just reiserfs-list, where only the reiserfs team will read it, but also to lkml if you could, please? Thanks for your support, user opinions count for a lot on lkml.

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

2006-07-29 Thread Hans Reiser
Nikita Danilov wrote: Hans Reiser writes: 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

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

2006-07-28 Thread Hans Reiser
Jeff Garzik wrote: Actually, there is reiser4 brokenness lurking in Hans' statement, too: Where! Someone tell me!;-) A filesystem WITH plugins must still handle the standard Linux compatibility stuff that other filesystems handle. Hmm, you mean we should first implement regular unix file

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

2006-07-28 Thread Hans Reiser
Matthias Andree wrote: I wonder what makes the hash overflow issue so complicated (other than differing business plans, that is) that upgrading in place isn't possible. Changes introduce instability, but namesys were proud of their regression testing - so how sustainable is their internal test

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

2006-07-28 Thread Hans Reiser
Linus Torvalds wrote: In other words, if a filesystem wants to do something fancy, it needs to do so WITH THE VFS LAYER, not as some plugin architecture of its own. Where does VFS store the plugin ids that specify per file variations? /etc/fstab? Also, is (current) VFS the interface for

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

2006-07-28 Thread Hans Reiser
Let me put it from my perspective and stop pretending to be unbiased, so others can see where I am coming from. No one was interested in our plugins. We put the design on a website, spoke at conferences, no one but users were interested. No one would have conceived of having plugins if not for

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

2006-07-28 Thread Hans Reiser
Hua Zhong wrote: I remember someone said something along the lines of Linux is evolution, not revolution. To me it seems unreasonable to put all the revolutionary VFS burden upon reiserfs team. It's not practical. Thanks for saying that Hua. We have a guy named Nate Diller, who probably

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

2006-07-26 Thread Hans Reiser
David Masover wrote: Although I should mention, Hans, that there is a really good reason to prefer the 15 minute patches. The patches that take a week are much harder to read during that week than any number of 15 minute incremental patches, because the incremental patches are already broken

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

2006-07-26 Thread Hans Reiser
David Masover wrote: 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 running on a Reiser4 root right now... I think you get to be the one to tell

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

2006-07-26 Thread Hans Reiser
David Masover wrote: 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

our 2.6.17 patch is not stable, please be warned

2006-07-25 Thread Hans Reiser
It crashed on me, and needed an fsck. At least our fsck works well though:-/, Vitaly, you did a great job of making the user interface informative. Hans

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

2006-07-24 Thread Hans Reiser
Matthias Andree wrote: The father declared his child unsupported, I never did that. and that's the end 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

Re: portage tree (Was: Re: reiser4 status (correction))

2006-07-23 Thread Hans Reiser
Thanks Christian. You can go ahead and add something to our wiki pointing to it if you would like. This might help tide people over until the repacker ships. Hans

Re: future r4 maintenance question

2006-07-23 Thread Hans Reiser
Maciej Sołtysiak wrote: Hello Hans, Saturday, July 22, 2006, 8:03:28 PM, you wrote: We are going to give changing the paradigm a try. The difference between 4.1-beta and 4.0 is that different plugins are the default, and the experimental code is in the plugins you see when mounting with

Re: reiser4 status (correction)

2006-07-23 Thread Hans Reiser
Mike Benoit wrote: On Sat, 2006-07-22 at 07:34 -0500, David Masover wrote: The compression will probably mostly be about speed. Remember, if we're talking about people who want to see tangible, visceral results, we're probably also talking about end-users. And trust me, the vast majority

Re: future r4 maintenance question

2006-07-23 Thread Hans Reiser
I am going to do the enhanced semantics first, so that somebody does not beat me to it. David's examples are good. There's another note to kernel developers -- if Reiser5, 6, and 7 are implemented as suites of plugins on top of Reiser4, then the Reiser4 code will be maintained for a very

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

2006-07-23 Thread Hans Reiser
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 neglected. This is true even if line for line the 1 week to read patch is more valuable.

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

2006-07-23 Thread Hans Reiser
Jeff Mahoney wrote: That particular bug isn't in the bitmap scanning code, it's a side effect of the write batching higher up. Did you write the code that looks for a window of 32 blocks? If not, and if this code has been around for a long time, I apologize. I thought you did write it and

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

2006-07-23 Thread Hans Reiser
Jeff Mahoney wrote: Anyone up for it? :) There are changes I'd like to see in reiser3, particularly ones that address the severe problems observed in David Chinner's high bandwidth file system talk this year at OLS. Specifically, it ended up making very little progress and spending the

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

2006-07-23 Thread Hans Reiser
Matt Heler wrote: On Sunday 23 July 2006 12:20 am, Hans Reiser wrote: The way you wrote this, makes it sound like a userspace issue, and _not_ a problem with reiserfs. It was a problem with reiserfs. Code was added to search for the perfect spot to fit a file. If there is no perfect

Re: reiser4 status (correction)

2006-07-22 Thread Hans Reiser
David Masover wrote: And it's not just databases. Consider BitTorrent. The usual BitTorrent way of doing things is to create a sparse file, then fill it in randomly as you receive data. Only if you decide to allocate the whole file right away, instead of making it sparse, you gain

Re: Utilizing OSDL's STP for Reiser4 testing/benchmarks?

2006-07-22 Thread Hans Reiser
Nate Diller wrote: On 7/21/06, Mike Benoit [EMAIL PROTECTED] wrote: Has the Reiser4 team looked at utilizing the OSDL Scalable Test Platform (STP) service to benchmark and test Reiser4 patches? They seem to offer a wide variety of hardware to test on, and already have some file system

Re: future r4 maintenance question

2006-07-22 Thread Hans Reiser
We are going to give changing the paradigm a try. The difference between 4.1-beta and 4.0 is that different plugins are the default, and the experimental code is in the plugins you see when mounting with the mount option 4.1-beta. Let's see if it works in practice. Hans Pysiak Satriani

Re: fsck.reiserfs --rebuild-tree out of disk space aborted

2006-07-21 Thread Hans Reiser
vs will try to help you Did Jeff fix the mythtv performance problem yet? If not, vs, please rip out the optimization which goes looking for the perfect length spot for files, and send both joel and akpm the patch. It is really not such a bad algorithm to just use the spots that are free in

Re: reiser4 status (correction)

2006-07-21 Thread Hans Reiser
David Masover wrote: Hans Reiser wrote: On a more positive note, Reiser4.1 is getting closer to release Good news! But it's been awhile since I've followed development, and the homepage seems out of date (as usual). Where can I find a list of changes since v4? By out of date, I

Re: Utilizing OSDL's STP for Reiser4 testing/benchmarks?

2006-07-21 Thread Hans Reiser
Elena, on Monday can you comment on this in detail? Thanks, Hans Mike Benoit wrote: Has the Reiser4 team looked at utilizing the OSDL Scalable Test Platform (STP) service to benchmark and test Reiser4 patches? They seem to offer a wide variety of hardware to test on, and already have some file

Re: storing images thumbnails as pseudo files?

2006-07-21 Thread Hans Reiser
David Masover wrote: Disclaimer: I don't speak for Namesys, and I don't work here. While I'm pretty confident I understand their vision, the final word on anything Reiser is always from Hans Reiser. David described my views pretty well, and saved me much typing.:)

Re: reiser4 status (correction)

2006-07-21 Thread Hans Reiser
Mike Benoit wrote: On top of that, I don't see how a repacker would help these work loads much as the files usually have a high churn rate. I think Reiserfs is used on a lot more than squid servers. For them, 80% of files don't move for long periods of time is the usual industry statistic

Re: somewhat OT query on journalling

2006-07-21 Thread Hans Reiser
David Masover wrote: Andreas Schäfer wrote: Don't get too excited -- the transactions probably aren't done yet. Without those, no filesystem that claims to journal data is really any better than a filesystem which only journals metadata. Even once they are implemented (or even if they are

Re: storing images thumbnails as pseudo files?

2006-07-21 Thread Hans Reiser
Pysiak Satriani wrote: Hello, suppose pseudo files, file-as-directory are on my r4 partition and are usuable. Does namesys' vision allow things like storing image thumbnails inside the file itself ? Example using jpgtn (jpgtn creates thumbnails of jpg files) // create 150px thumbnail $ jpgtn

reiser4 status (correction)

2006-07-20 Thread Hans Reiser
Well, it seems we still aren't quite as stable as we were 6 months ago (the new reduced cpu usage code was extensive, as was the VFS change code), and we know of a bug we can reproduce using our standard tests. Also, it seems we can oops when a particular program is run to consume all memory

Re: somewhat OT query on journalling

2006-07-19 Thread Hans Reiser
Payal Rathod wrote: Hi, I was just reading about filesystems and my ideas are a bit confused. I read quite a few articles on net but still my basic doubts are not completely clarified. I thought this would be the right place to ask, since many journalling gurus might be here. Can someone tell

2.6.17 patch is in testing now

2006-07-18 Thread Hans Reiser
It contains 5 bug fixes. If testing goes well we will release it tomorrow.It is listed below in case you feel like helping to test, it works on vs's workstation ftp://ftp.namesys.com/pub/reiser4-for-2.6/2.6.17/reiser4-for-2.6.17-1.patch.gz Apologies to our users that this took a

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeffrey Mahoney wrote: Hans Reiser wrote: Jeffrey Mahoney wrote: This is not the desired interpretation, which is why we need to replace the pathname separator in the name. ReiserFS is the component that is choosing to use the block device name as a pathname component and is responsible

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeff Mahoney wrote: Hans Reiser wrote: I don't understand your patch and cannot support it as it is written. Perhaps you can call me and explain it on the phone. I seriously can't tell if you're deliberately trying to be difficult or not. It's a simple replace / with ! before sending

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeff Mahoney wrote: As stated before numerous times by both Andrew and myself, the correct solution is to eliminate / from block device names. Why? It is elegant to have those /'s Just create the directory, how is that hard? This patch was a band-aid until that's done. -Jeff --

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
[EMAIL PROTECTED] wrote: On Sun, 16 Jul 2006 20:02:27 PDT, Hans Reiser said: Create a mountpoint which knows how to resolve a/b without using a directory. And said mountpoint gets past the '/' interpretation in the VFS, how, exactly? fs/namei.c, do_path_lookup() does magic

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeff Mahoney wrote: [EMAIL PROTECTED] wrote: On Sun, 16 Jul 2006 20:02:27 PDT, Hans Reiser said: Create a mountpoint which knows how to resolve a/b without using a directory. And said mountpoint gets past the '/' interpretation in the VFS, how, exactly? fs/namei.c, do_path_lookup

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeff Mahoney wrote: Hans Reiser wrote: Jeff Mahoney wrote: Hans Reiser wrote: I don't understand your patch and cannot support it as it is written. Perhaps you can call me and explain it on the phone. I seriously can't tell if you're deliberately trying to be difficult or not. It's

Re: data corruption with 2.4.25 and datalogging patches

2006-07-17 Thread Hans Reiser
It seems like bad memory is growing as a percentage of user filesystem problem sources. Do others have that feeling also? Hans Brad Dameron wrote: On Mon, 2006-07-17 at 21:55 +0400, Vladimir V. Saveliev wrote: Hello On Mon, 2006-07-17 at 10:53 +0200, Francisco Javier Cabello wrote:

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-17 Thread Hans Reiser
Jeff Mahoney wrote: Hans Reiser wrote: Jeff Mahoney wrote: 1) Because then the behavior of /proc/fs/reiserfs/ would be inconsistent. Devices that contain slashes end up being one level deeper than other devices, which is silly and a userspace visible change. And you think translating

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-16 Thread Hans Reiser
So the Plan 9 and Unix way would be to let the driver parse the number part of the name after the last slash. What I don't understand is why reiserfs is getting involved here, rather than recognizing the driver as an extension of the namespace, seeing the driver as a mountpoint, and just passing

Re: short term task list for Reiser4

2006-07-16 Thread Hans Reiser
Jindrich Makovicka wrote: On Fri, 14 Jul 2006 00:01:49 -0700 Hans Reiser [EMAIL PROTECTED] wrote: rvalles wrote: I believe those two are related. I'm having the pauses (of many minutes at times!) when writing to reiser4. It seems it is triggered mostly by the use of fsync(); NFS in sync

Re: [mythtv-users] Permission denied to ls for root?

2006-07-16 Thread Hans Reiser
Ryan Steffes wrote: On 7/14/06, *Michael T. Dean* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: On 07/14/2006 09:31 PM, Carl Fongheiser wrote: On 7/14/06, *Ryan Steffes* [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED]

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-16 Thread Hans Reiser
. Is this related to the difference between BSD's namei and Linux's? BSD is the one getting it right. Hans Jeffrey Mahoney wrote: Hans Reiser wrote: So the Plan 9 and Unix way would be to let the driver parse the number part of the name after the last slash. What I don't understand is why

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-16 Thread Hans Reiser
Jeff Mahoney wrote: Hans Reiser wrote: Hans, we're all in agreement that we'd prefer drivers not use names with slashes in them, there is nothing wrong with using names that have slashes. The thing that is wrong is somehow needing to translate them into names with !'s. and it would

Re: [PATCH] reiserfs: fix handling of device names with /'s in them

2006-07-16 Thread Hans Reiser
Jeffrey Mahoney wrote: Hans Reiser wrote: Jeff Mahoney wrote: Hans Reiser wrote: Hans, we're all in agreement that we'd prefer drivers not use names with slashes in them, there is nothing wrong with using names that have slashes. The thing that is wrong is somehow needing

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