Bug#613172: reportbug: samba/kswapd0/ext4 moving large files or causing high systemload cause kernel panic/system freeze

2011-02-13 Thread Barry Schut
Package: reportbug
Version: 4.12.6
Severity: critical
Tags: lfs
Justification: breaks the whole system

This problem started when i updated to Squeeze from Lenny, which never 
portraited this issue.

When i try to put the system under quite some load by either compiling with 
make -j3 (dualcore system)
or move a +40GB file through samba on an ext4 fs using a 1Gbit NIC the kernel 
throws a trace and
freezes, compiling my own kernel (2.6.37) enabled me to do a regular reboot 
now, but it is rendered
unusable from there on after untill i reboot the machine.

I have been unable to trace the problem to one specific thing, it might be 
kernel related as this and
the debian squeeze kernels are newer then the one i used before. I have trace 
information and system
information at the ready for anyone who wishes to view them.

Kernel/Debian developers can use my system to debug if needed.

I hope you can help, i'll be forced to return to Lenny if this cant be 
resolved... and that would be a
shame... Squeeze looks good from many perspectives!

Regards,

Barry Schut
a.k.a. [NUT]

-- Package-specific info:
** Environment settings:
INTERFACE=text

** /home/nut/.reportbugrc:
reportbug_version 4.12.6
mode standard
ui text

-- System Information:
Debian Release: 6.0
  APT prefers squeeze-updates
  APT policy: (500, 'squeeze-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.37 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages reportbug depends on:
ii  apt 0.8.10.3 Advanced front-end for dpkg
ii  python  2.6.6-3+squeeze5 interactive high-level object-orie
ii  python-reportbug4.12.6   Python modules for interacting wit

reportbug recommends no packages.

Versions of packages reportbug suggests:
pn  debconf-utils none (no description available)
pn  debsums   none (no description available)
pn  dlocate   none (no description available)
pn  emacs22-bin-common | emacs23- none (no description available)
ii  file  5.04-5 Determines file type using magic
ii  gnupg 1.4.10-4   GNU privacy guard - a free PGP rep
ii  postfix [mail-transport-agent 2.7.1-1High-performance mail transport ag
ii  python-gtk2   2.17.0-4   Python bindings for the GTK+ widge
pn  python-gtkspell   none (no description available)
ii  python-urwid  0.9.9.1-1  curses-based UI/widget library for
pn  python-vtenone (no description available)
pn  xdg-utils none (no description available)

-- no debconf information



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Bug#613172: The gziped systeminformation

2011-02-13 Thread Barry Schut
Tried blacklisting rl2870sta and unfortunately it did not really help...

So far I have been able to get it to crash (every time I attempt these
actions, so 100% reproducible):

Mkfs.ext3/4 /dev/sdc5 (which is a 1TB SATA disk)
Make -j3 bzImage  make -j3 modules

The same happens when I transfer a 48GB windows backup system image to a
samba share.

The grand unifier in these actions is that they put a strain on both SMP/CPU
load and disk I/O.

The system throws a trace to the console and freezes using 2.6.32-5-amd64.
Using a custom kernel I manage to overcome the initial freeze, but a reboot
remains mandatory.

I can provide you with login details if you want to take a look, I'll grant
you any help you need, you can install whatever you need even if that means
I need to reinstall the system.

Regards,

Barry Schut

-Original Message-
From: Julien Cristau [mailto:jcris...@debian.org] 
Sent: zondag 13 februari 2011 15:06
To: Barry Schut
Cc: 613...@bugs.debian.org
Subject: Re: Bug#613172: The gziped systeminformation

reopen 613172
kthxbye

On Sun, Feb 13, 2011 at 14:59:53 +0100, Barry Schut wrote:

 Well Julien, thats just it: i can not provide you with kernel traces 
 using the debian kernel package from Squeeze: it freezes before it 
 writes them to disk... (log restarts, no trace of any bug)
 
 Please let me know what to do to provide you with what you need...
 
Hrm, ok, reopening then.  You might try blacklisting the wireless driver
since your earlier traces showed it breaking.  I'm confused though.  You
said you had troubles with moving large files with samba.  That wouldn't
affect the boot, so you should still have a log somewhere.

Cheers,
Julien




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Bug#613172: The gziped systeminformation

2011-02-13 Thread Barry Schut
Somehow i managed to close the report previously, that was not my
intention... sorry about that!

Regards,

Barry Schut

-Original Message-
From: Julien Cristau [mailto:jcris...@debian.org] 
Sent: zondag 13 februari 2011 15:06
To: Barry Schut
Cc: 613...@bugs.debian.org
Subject: Re: Bug#613172: The gziped systeminformation

reopen 613172
kthxbye

On Sun, Feb 13, 2011 at 14:59:53 +0100, Barry Schut wrote:

 Well Julien, thats just it: i can not provide you with kernel traces 
 using the debian kernel package from Squeeze: it freezes before it 
 writes them to disk... (log restarts, no trace of any bug)
 
 Please let me know what to do to provide you with what you need...
 
Hrm, ok, reopening then.  You might try blacklisting the wireless driver
since your earlier traces showed it breaking.  I'm confused though.  You
said you had troubles with moving large files with samba.  That wouldn't
affect the boot, so you should still have a log somewhere.

Cheers,
Julien




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Bug#613172: The gziped systeminformation

2011-02-13 Thread Barry Schut
Just to be sure, my original reply was 2 messages above this one, i'll
remember to strip emails from unwanted quotes...

Regards,

Barry Schut





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