gmane.comp.file-systems.reiserfs.general

Re: Testing a custom kernel (2.6.39) with native reiser4 support

Edward Shishkin — 2012-05-24T18:45:35

Thanks.

Actually not everything is so iridescent:
there are a couple of bugs which can be really annoying..
We'll continue to narrow down them at leisure. For now make
a friendship with fsck..




Under construction.
I think that repacker and next features will be paid options
(money will go for Reiser's children).

Thanks,
Edward.



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Re: Testing a custom kernel (2.6.39) with native reiser4 support

Sandro Souza — 2012-05-24T17:53:25

Hello my friends.

Edward, you ARE the man! :D

Your patch works wonderfully.

Inside my virtual machine, I made a new custom distro (based on debian
squeeze, but with 2.6.39 kernel, patched with reiser4 native support),
and I was able to install it in another virtual machine (/boot as
reiser3, / as reiser4 and /home as reiser4).

Everything are working fine now. :D

Now, I'll burn this new custom distro in a DVD and I'll install it on
my notebook (no more VM) to test it.

Please, may you tell me if the reiser4 has some auto-defragmentation feature?

The compression feature (gzip1) is amazing. If we have
auto-defragmentation feature also.....man!!! No words. :D

Thank you and the entire reiser4 team. You all are making the
difference. REALLY!

2012/5/20 Edward Shishkin <edward.shishkin< at >gmail.com>:
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[Bug 11652] BUG: unable to handle kernel paging request in le_key_version

2012-05-22T14:35:13

https://bugzilla.kernel.org/show_bug.cgi?id=11652


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |CLOSED

[Bug 11652] BUG: unable to handle kernel paging request in le_key_version

2012-05-22T14:35:06

https://bugzilla.kernel.org/show_bug.cgi?id=11652


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |alan< at >lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE
         Regression|---                         |No

[Bug 11353] had to rebuild reiser4 even though emergency-sync with sysrq-keys

2012-05-22T13:24:20

https://bugzilla.kernel.org/show_bug.cgi?id=11353


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |CLOSED

[Bug 11353] had to rebuild reiser4 even though emergency-sync with sysrq-keys

2012-05-22T13:24:15

https://bugzilla.kernel.org/show_bug.cgi?id=11353


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|NEEDINFO                    |RESOLVED
                 CC|                            |alan< at >lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE

Re: "Home" of reiser4?

Markus — 2012-05-21T23:39:02

Hi Edward,

thanks for these explanations.  They make already a lot of things
much clearer: discussions, packaging {"patches"} and authentication
seem obvious.


Edward Shishkin writes:
 > On 05/21/2012 07:15 PM, Edward Shishkin wrote:
 > > On 05/21/2012 06:47 PM, Markus wrote:
 > >> Hello Edward, Glenn, Viji, Sandro and all other activists,
 > >>
...
 > >>
 > >> To which degree is this platform intended to be used {documentation,
 > >> discussions,
 > 
 > 
 > Developers documentation has been performed as a set
 > of comments in reiser4 source code.
 > 
 > Some info ("getting started", etc.) can be found here:
 > https://reiser4.wiki.kernel.org/index.php/Main_Page
 > 
The problem with the wikis presently is that there are too many with a
lot of outdated content.  
I think, it would be an important move to declare one of them as
"authentic" with references to and some statements about the others. 


 > 
 >   versioned sources, bug tracking}?
 > >
 > > Patches and (maybe) SCM.
 > >
 > > I don't see a need to

Re: "Home" of reiser4?

Edward Shishkin — 2012-05-21T17:15:43

Hello.


Yes.


Patches and (maybe) SCM.

I don't see a need to track bugs of current stuff:
any problems are resolved to the old 2-3 bugs that
I am aware of..


Good idea..


Me. And other active reiser4 developers (if any)..

Thanks,
Edward.
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Re: "Home" of reiser4?

Edward Shishkin — 2012-05-21T17:41:09


Developers documentation has been performed as a set
of comments in reiser4 source code.

Some info ("getting started", etc.) can be found here:
https://reiser4.wiki.kernel.org/index.php/Main_Page

And all discussions are going here (in the mailing list).

Thanks,
Edward.


  versioned sources, bug tracking}?

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"Home" of reiser4?

Markus — 2012-05-21T16:47:41

Hello Edward, Glenn, Viji, Sandro and all other activists,

now, that the patches are gone from 
http://www.kernel.org/pub/linux/kernel/people/edward/reiser4/,
is http://sourceforge.net/projects/reiser4/ now the "official" home
for further reiser4 development?

To which degree is this platform intended to be used {documentation,
discussions, versioned sources, bug tracking}?

Are older patchsets {eg. those still on 
http://130.83.2.34/pub/linux/mirrors/misc/old/reiserfs/reiser4-for-2.6
and
http://ftp.sunet.se/pub/Linux/kernels/people/edward/reiser4/reiser4-for-2.6/}
intended to be kept on Sourceforge as well?

Any ideas about authorisation {who may write what}?


Best regards,

   Markus


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Re: Testing a custom kernel (2.6.39) with native reiser4 support

Edward Shishkin — 2012-05-21T00:12:31

Hello.

Please, try the attached patch: it should help...
I have also fixed a deadlock because of reiser4
lock ordering violation:

do_lo_send_aops() keeps page locked and calls file_update_time()
which calls reiser4_update_sd, which tries to acquire a longterm
lock (bad).

Thanks,
Edward.

On 05/15/2012 12:55 AM, Sandro Souza wrote:

[...]


[...]

Reserve space in reiser4_write_begin() properly:
1) for update_sd() when changing file szie;
2) for update_sd() when updating mtime/ctime

Fix deadlock (reiser4 lock ordering violation):
release page lock in reiser4_dirty_inode()
before aquiring a longterm lock.

Signed-off-by: Edward Shishkin <edward.shishkin< at >gmail.com>
---
 fs/reiser4/context.h                     |    4 +++
 fs/reiser4/plugin/file/cryptcompress.c   |   29 +++++++++++++++++++--
 fs/reiser4/plugin/file/file.c            |   41 +++++++++++++++++++++----------
 fs/reiser4/plugin/file/file_conversion.c |   11 +++-----
 fs/reiser4/super_ops.c                   |   17 +++++++++---
 5 files changed, 7

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Re: Testing a custom kernel (2.6.39) with native reiser4 support

Edward Shishkin — 2012-05-15T11:49:21


BTW we don't reserve space exactly for update_sd() (one block should be
reserved). Anybody care to fix this?

Thanks,
Edward.
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Re: Testing a custom kernel (2.6.39) with native reiser4 support

Edward Shishkin — 2012-05-15T11:14:23


^write_end^write_begin
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Re: Testing a custom kernel (2.6.39) with native reiser4 support

Edward Shishkin — 2012-05-15T10:12:19

Hello.

[...]



It seems we forget to reserve space somewhere in write_end_cryptcompress().

Reiser4 uses technique of "soft ENOSPC": since it is impossible to
estimate precisely amount of disk space that will be spent by any
operation, every thread reserves needed amount of space with store,
so that surplus will be freed at commit time.

It seems we forget to reserve space somewhere in 
write_end_cryptcompress() for some needs, so that all reserved space
is exhausted and update_sd(), which wants 1 reserved block encounters
a zeroed counter of reserved blocks.

I'll try to take a look at this problem at leisure. For now
please don't use loop devices over compressed reiser4 files.

Thanks,
Edward.




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Testing a custom kernel (2.6.39) with native reiser4 support

Sandro Souza — 2012-05-14T22:55:33

Hello my friends.

I made a new custom distro based on debian squeeze, but with 2.6.39
kernel, patched with reiser4
(http://downloads.sourceforge.net/project/reiser4/reiser4-for-linux-2.6/reiser4-for-2.6.39-1.patch.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Freiser4%2Ffiles%2Freiser4-for-linux-2.6%2F&ts=1337035240&use_mirror=ufpr).

Trying to copy a folder from a reiser3 partition to a reiser4
partition, I got error messages.

Testing my custom kernel with "preemption model" in "Preemptible
Kernel", I got these messages:

[  286.945598] ------------[ cut here ]------------
[  286.945609] kernel BUG at fs/reiser4/block_alloc.c:151!
[  286.945617] invalid opcode: 0000 [#1] PREEMPT SMP
[  286.945626] last sysfs file:
/sys/devices/pci0000:00/0000:00:0b.0/usb1/1-1/1-1:1.0/host2/target2:0:0/2:0:0:0/block/sdc/sdc1/uevent
[  286.945634] CPU 0
[  286.945641] Modules linked in: mperf cpufreq_powersave
cpufreq_stats cpufreq_userspace cpufreq_conservative ppdev lp
bluetooth rfkill binfmt_misc fuse loop snd_intel8x0 s

[Bug 14826] jdm-20002 reiserfs_xattr_get: Invalid hash for xattr

2012-05-14T15:47:02

https://bugzilla.kernel.org/show_bug.cgi?id=14826


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

[Bug 14826] jdm-20002 reiserfs_xattr_get: Invalid hash for xattr

2012-05-14T15:46:53

https://bugzilla.kernel.org/show_bug.cgi?id=14826


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan< at >lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE

[Bug 14827] REISERFS error (device ....): vs-4010 is_reusable: block number is out of range

2012-05-14T15:46:11

https://bugzilla.kernel.org/show_bug.cgi?id=14827


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

[Bug 14827] REISERFS error (device ....): vs-4010 is_reusable: block number is out of range

2012-05-14T15:46:06

https://bugzilla.kernel.org/show_bug.cgi?id=14827


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan< at >lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE

[Bug 14855] Reiserproblem

2012-05-14T15:43:00

https://bugzilla.kernel.org/show_bug.cgi?id=14855


Alan <alan< at >lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |CLOSED