Dušan Čolić | 16 Nov 00:06 2014
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Re: Cleanup patches

These are results from bisecting of R4 slowdown with ccreg40 plugin
with config and scripts I used, first double run is to see dispersion
of consecutive tests:

Reiser4 patch        Real        User        System
2.6.10-2        2m46.785s    0m3.214s    1m45.286s
2.6.10-2        2m52.700s    0m3.198s    1m43.361s
2.6.16-5        3m32.694s    0m2.900s    1m34.698s
2.6.19-4        3m19.672s    0m3.120s    1m33.234s
2.6.20            3m9.582s    0m3.164s    1m28.830s
2.6.21            7m52.960s    0m2.992s    1m28.326s
2.6.22-2        6m57.991s    0m2.852s    1m28.258s

Have a nice day

Dushan

On Fri, Oct 24, 2014 at 11:17 PM, Dušan Čolić <dusanc <at> gmail.com> wrote:
> OK after 7 years, can't believe how long ago it was, I decided to dig up
> some ancient hw and to try again to do this bisect.
> Questions:
> 1. Would it still be useful?
> 2. Any other tests that I can do on those old kernels that can be of value?
> 3. What would be best bisect range? Oldest and newest kernel?
>
> On Nov 14, 2007 11:39 PM, "Edward Shishkin" <edward.shishkin <at> gmail.com>
> wrote:
>>
>> On 11/15/07, Dushan Tcholich <dusanc <at> gmail.com> wrote:
>> > ...
(Continue reading)

Dušan Čolić | 3 Nov 19:27 2014
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Re: Reiser4 for 3.16.2 problem: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory

Ok now with same config kernels 3.16,  3.14 and 3.10 fail in same spot.
It failes around rsync --delete or something command, dunno how to
find what it is I looked at iotop.
So let me reiterate:
One automated operation that worked after fsck every day for months
with kernel 3.10 started making problems since I started using 3.16
BUT it makes kernel Oops even if I go back to 3.10. The only funky
thing I did was having txmod=wa for few days in /etc/fstab but that
was before these problems. Could it be that some corrupted file makes
this, unseen by fsck?
I can reformat this partition but I suspect that problematic file is
on my /. And then we wouldn't have a test case to reproduce this oops
:)
Is there any way to record all IO requests to find what exactly does this?

This is Oops from 3.14:

Nov  3 18:57:40 krshina3 kernel: [  179.693947] ------------[ cut here
]------------
Nov  3 18:57:40 krshina3 kernel: [  179.694212] kernel BUG at
fs/reiser4/plugin/item/ctail.c:669!
Nov  3 18:57:40 krshina3 kernel: [  179.694537] invalid opcode: 0000 [#1] SMP
Nov  3 18:57:40 krshina3 kernel: [  179.694779] CPU: 1 PID: 3203 Comm:
rsync Not tainted 3.14.14-gentoo #1
Nov  3 18:57:40 krshina3 kernel: [  179.695148] Hardware name:
Gigabyte Technology Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5
07/04/2012
Nov  3 18:57:40 krshina3 kernel: [  179.695702] task: ffff8800b6cf47b0
ti: ffff8801db7f6000 task.ti: ffff8801db7f6000
Nov  3 18:57:40 krshina3 kernel: [  179.696128] RIP:
(Continue reading)

Ivan Shapovalov | 3 Nov 16:12 2014
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Re: Reiser4 for 3.16.2 problem: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory

On Monday 03 November 2014 at 15:01:38, Edward Shishkin wrote:	
> On 11/03/2014 02:56 PM, Dušan Čolić wrote:
> >
> >
> > On Nov 3, 2014 2:36 PM, "Edward Shishkin" <edward.shishkin <at> gmail.com 
> > <mailto:edward.shishkin <at> gmail.com>> wrote:
> > >
> > > Sorry, Can not reproduce.
> > > I have create a ticket http://sourceforge.net/p/reiser4/tickets/3/
> > > will keep this in mind.
> > >
> > > Thanks!
> >
> > Will it help if I try earlier kernels?
> > How can I find what file crashes it?
> >
> 
> 
> Somebody steals pages of compressed file's address space.
> It can be e.g. because of races. I don't have any ideas except
> code inspection...

Do you remember the migration issue? Can't it be related?
(btw, reiser4's pages are still non-migratable...)

--

-- 
Ivan Shapovalov / intelfx /
Dušan Čolić | 3 Nov 12:12 2014
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Re: Reiser4 for 3.16.2 problem: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory

I fscked it yesterday before crash and now I'm fsck-ing it again but
as you remember it lasts 1hr+ for some reason.

On Mon, Nov 3, 2014 at 12:10 PM, Edward Shishkin
<edward.shishkin <at> gmail.com> wrote:
>
> On 11/03/2014 11:58 AM, Dušan Čolić wrote:
>
> Now a Bug happened to me on this same ccreg40 partition with
> Reiser4-for-3.16.2.patch and I don't know if it's related.
>
>
>
> It can not be related to inability to allocate memory at mount time.
>
>
> I have a partition that I use for daily, weekly and monthly snapshots -
> /dev/md125 with rsnapshot.
> I fsck-ed it yesterday.
>
>
>
> Did you fsck-ed it before, or after crash?
>
> Edward.
>
>
>
> After mounting rsync starts and snapshots my /home directory. This Bug
> happened on rsync start.
(Continue reading)

Dušan Čolić | 3 Nov 12:11 2014
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Re: Reiser4 for 3.16.2 problem: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory

And just now I saw in logs that machine crashed some after starting
that rsync job at 3:30AM

All I have in logs is:
Nov  3 03:30:01 krshina3 cron[32611]: (root) CMD (test -x
/usr/sbin/run-crons && /usr/sbin/run-crons )
Nov  3 03:30:01 krshina3 run-crons[32620]: (root) CMD
(/etc/cron.daily/logrotate)
Nov  3 06:33:08 krshina3 syslog-ng[2482]: syslog-ng starting up; version='3.4.8'
Nov  3 06:33:08  kernel: [    0.000000] Initializing cgroup subsys cpu

That's the user restarting the crashed machine in 06:33 in the morning.

Log should look like this:

Oct 31 03:30:01 krshina3 cron[25344]: (root) CMD (test -x
/usr/sbin/run-crons && /usr/sbin/run-crons )
Oct 31 03:30:01 krshina3 run-crons[25353]: (root) CMD
(/etc/cron.daily/logrotate)
Oct 31 03:30:01 krshina3 run-crons[25357]: (root) CMD
(/etc/cron.daily/makewhatis)
Oct 31 03:30:01 krshina3 run-crons[25412]: (root) CMD (/etc/cron.daily/prelink)
Oct 31 03:30:11 krshina3 run-crons[27772]: (root) CMD
(/etc/cron.daily/rsnapshot.daily)
Oct 31 03:30:11 krshina3 kernel: [389256.309611] reiser4: md125: found
disk format 4.0.0.
Oct 31 03:30:14 krshina3 kernel: [389259.561553] reiser4: md125: using
Hybrid Transaction Model.
Oct 31 03:31:26 krshina3 logger: ### RSNAPSHOT DAILY OK###
Oct 31 03:31:27 krshina3 sSMTP[27777]: Sent mail for ********** (221
(Continue reading)

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MRS GRACE MANDA | 2 Nov 20:57 2014
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(unknown)


This is Mrs Grace Manda (  Please I need your Help is Urgent). 
Attachment (Mrs Grace Manda.rtf): application/rtf, 47 KiB
Dušan Čolić | 2 Nov 10:09 2014
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Reiser4 inclusion into staging tree

I've made a poll on forums.gentoo.org with a question:" What Reiser4
needs for you to start using it?" and with these offered answers I got
following results:

http://forums.gentoo.org/viewtopic-t-1002726-postdays-0-postorder-asc-start-25.html

Mainline inclusion
 45%
Encryption
 0%
Snapshots
 0%
Defrag
 0%
Performance
 0%
Subvolumes
 0%
Grub2 support
 0%
Something else
 31%
It's already perfect
 4%
I'd never use it
 18%

Something else were users that asked for checksums (we do that for
ccreg40 partitions or files? what about reg40? just sizes AFAIK?), SSD
support, fixing undeletable dir bug, long mount times (if the large
(Continue reading)

Dušan Čolić | 2 Nov 09:38 2014
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Reiser4 for 3.16.2 problem: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate memory

When I try to mount a cc reiser4 partition (reiser4-for-3.16.2.patch)
I get: mount: mount /dev/md125 on /mnt/backup failed: Cannot allocate
memory
Uptime is almost 7 days and mounting of this partition worked every
day untill last night (I get automated messages on mail when something
goes wrong).

Now I tried on kernel 3.10 and everything works OK

krshina3 goran # uname -a
Linux krshina3 3.10.6-gentoo #2 SMP Wed Aug 14 17:33:45 CEST 2013
x86_64 Intel(R) Core(TM) i3-3220 CPU  <at>  3.30GHz GenuineIntel GNU/Linux

krshina3 goran# free -m
             total       used       free     shared    buffers     cached
Mem:          7681       6794        887         30          0       2933
-/+ buffers/cache:       3860       3821
Swap:          580        325        254

krshina3 goran# cat /etc/fstab | grep -v "#"

/dev/sda1               /boot           ext2            noauto,noatime  1 2
/dev/md123              none            swap            sw              0 0
/dev/sda2               /               reiser4
noatime,onerror=remount-ro              0 0
/dev/md125              /mnt/backup     reiser4
noatime,noauto,onerror=remount-ro       0 0
/dev/md126              /mnt/media      reiser4
noatime,users,onerror=remount-ro        0 0
/dev/md127              /usr/portage    reiser4
(Continue reading)

doiggl | 2 Nov 06:55 2014
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Does the reiser4-for-3.17.2.patch contain all the non-rfc patches since reiser4-for-3.16.2.patch

Hello,
Does the reiser4-for-3.17.2.patch contain all the non-rfc patches since
reiser4-for-3.16.2.patch

Just wondering.

Thanks Glenn
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doiggl | 2 Nov 06:38 2014
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Here is a plain kernel based on 3.17.x with the reiser4 patch enabled.

Hello,
Here is a plain kernel based on 3.17.x with the reiser4 patch built with
the Opensuse build service [obs] system.

The built rpms are here

https://build.opensuse.org/package/binaries/home:doiggl/kernel-reiser4?repository=openSUSE_13.1

Architecture: i586

kernel-reiser4-3.17.1-1.1.gd2bbe7f.i686.rpm
kernel-reiser4-3.17.1-1.1.gd2bbe7f.nosrc.rpm
kernel-reiser4-debuginfo-3.17.1-1.1.gd2bbe7f.i686.rpm
kernel-reiser4-debugsource-3.17.1-1.1.gd2bbe7f.i686.rpm
kernel-reiser4-devel-3.17.1-1.1.gd2bbe7f.i686.rpm

Architecture: x86_64

kernel-reiser4-3.17.1-1.1.gd2bbe7f.nosrc.rpm
kernel-reiser4-3.17.1-1.1.gd2bbe7f.x86_64.rpm
kernel-reiser4-debuginfo-3.17.1-1.1.gd2bbe7f.x86_64.rpm
kernel-reiser4-debugsource-3.17.1-1.1.gd2bbe7f.x86_64.rpm
kernel-reiser4-devel-3.17.1-1.1.gd2bbe7f.x86_64.rpm

The project is here
https://build.opensuse.org/package/show?package=kernel-reiser4&project=home%3Adoiggl

The log of the build is here {x86_64} as an example. [Its a long buildlog]
https://build.opensuse.org/package/live_build_log/home:doiggl/kernel-reiser4/openSUSE_13.1/x86_64

(Continue reading)


Gmane