natty (11.04): kernel panic due to segfault

[Kloschüssel]

Hi,

as the title says, my natty installation has some problem and doesn't boot anymore. Yet I was unable to find out what it is and therefore I would like to know what you guys think. Maybe you're able to point me into the right direction?

Thus I pasted the /var/log/messages content here: Sep 5 21:43:33 fuh kernel: imklog 4.2.0, log source = /proc/kmsg started. Sep | Pastebin.de

Some background information:

The host computer is an atom 330 with ion chipset and an X10 remote control receiver attached. I mention that because the drivers for it have recently been moved to the kernel and are IMHO one of the hot candidates.

The installation is on software raid 5, with exception to the /boot partition which is replicated across all harddiscs. So far I was able to boot from live and chroot into the environment to fix the problem. I assume that all the partitioning, including the boot partition and the boot process is fine since the kernel panic happens a few seconds later.

To state the obvious: the kernel panic is due to segfaults in hald, which are reproduced on every boot and happen always around at the same moment. So, finding out what problem hald has probably solves also the symptoms.

I greatly appreciate any comments that help me reawaken "fuh" from the deads!

EDIT: I'm probably a victim of https://bugs.launchpad.net/ubuntu/+s...rc/+bug/787742 , but I have to investigate a bit more.

[Kloschüssel]

I am indeed a victim of the above bug.

For now I got my system back to boot by:

# remove source modules
$ apt-get remove lirc-modules-source

# make sure lirc_atiusb is backlisted
$ cat /etc/modprobe.d/lirc-blacklist.conf 
blacklist lirc_atiusb
blacklist ati_remote

Still there are still some things I have to investigate further..

[Kloschüssel]

HOORAY! I made it!

# lsusb | grep X10
Bus 003 Device 002: ID 0bc7:0006 X10 Wireless Technology, Inc. Wireless Transceiver (ACPI-compliant)
# lsb_release -a
Distributor ID:	Ubuntu
Description:	Ubuntu 11.04
Release:	11.04
Codename:	natty
# apt-cache policy xbmc-standalone
xbmc-standalone:
  Installed: 2:10.1~ppa1~karmic
# apt-cache policy lirc
lirc:
  Installed: 0.8.7-0ubuntu4.1

All works together with:

# cat /etc/lirc/hardware.conf
# /etc/lirc/hardware.conf
#
#Chosen Remote Control
REMOTE="Medion MD1 NBC"
REMOTE_MODULES=""
REMOTE_DRIVER="atilibusb"
#REMOTE_DRIVER="devinput"
REMOTE_DEVICE=""
REMOTE_SOCKET="/var/run/lirc/lircd"
#REMOTE_LIRCD_CONF="medion/md1-nbc.conf"
REMOTE_LIRCD_CONF="medion/2002-9724.conf"
REMOTE_LIRCD_ARGS=""

#Chosen IR Transmitter
TRANSMITTER="None"
TRANSMITTER_MODULES=""
TRANSMITTER_DRIVER=""
TRANSMITTER_DEVICE=""
TRANSMITTER_SOCKET=""
TRANSMITTER_LIRCD_CONF=""
TRANSMITTER_LIRCD_ARGS=""

#Enable lircd
START_LIRCD="true"

#Don't start lircmd even if there seems to be a good config file
#START_LIRCMD="false"

#Try to load appropriate kernel modules
LOAD_MODULES="true"

# Default configuration files for your hardware if any
LIRCMD_CONF=""

#Forcing noninteractive reconfiguration
#If lirc is to be reconfigured by an external application
#that doesn't have a debconf frontend available, the noninteractive
#frontend can be invoked and set to parse REMOTE and TRANSMITTER
#It will then populate all other variables without any user input
#If you would like to configure lirc via standard methods, be sure
#to leave this set to "false"
FORCE_NONINTERACTIVE_RECONFIGURATION="false"
START_LIRCMD=""

# cat /etc/lirc/lircd.conf
#This configuration has been automatically generated via
#the Ubuntu LIRC package maintainer scripts.
#
#It includes the default configuration for the remote and/or
#transmitter that you have selected during package installation.
#
#Feel free to add any custom remotes to the configuration
#via additional include directives or below the existing
#Ubuntu include directives from your selected remote and/or
#transmitter.

#Configuration for the Medion MD1 NBC remote:
include "/usr/share/lirc/extras/more_remotes/medion/2002-9724.conf"

# cat /usr/share/lirc/extras/more_remotes/medion/2002-9724.conf

# Please make this file available to others
# by sending it to <lirc@bartelmus.de>
#
# this config file was automatically generated
# using lirc-0.8.6(atilibusb) on Fri May 21 20:40:56 2010
#
# contributed by 
#
# brand:                       /root/tmp
# model no. of remote control: 
# devices being controlled by this remote:
#

begin remote

  name  medion
  bits           16
  eps            30
  aeps          100

  one             0     0
  zero            0     0
  pre_data_bits   8
  pre_data       0x14
  post_data_bits  16
  post_data      0x0
#  gap		435996
#  gap		235996
  gap          47986
#  min_repeat      2
  toggle_bit_mask 0x80800000
#NO  toggle_bit_mask 0x30100000
#NO  toggle_bit	0
#NO  toggle_bit	1
#NO toggle_bit	2
#NO  toggle_bit	3

      begin codes
          Ok                       0x739E
          Left                     0xF21D
          Right                    0x749F
          Up                       0xEF1A
          Down                     0x77A2
          LiveTV                   0xF11C
          RecTV                    0x6D98
          Photo                    0xDA05
          Music                    0x5B86
          DVDMenu                  0xD904
          Video                    0x82AD
          Audio                    0x0732
          Angle                    0x0934
          Title                    0x0A35
          Subtitle                 0x0833
          Power                    0xD702
          Guide                    0x86B1
          Text                     0xEB16
          VolUp                    0x5E89
          VolDown                  0xDD08
          Mute                     0x5580
          PUp                      0xE00B
          PDown                    0x618C
          1                        0xE20D
          2                        0x638E
          3                        0xE40F
          4                        0x6590
          5                        0xE611
          6                        0x6792
          7                        0xE813
          8                        0x6994
          9                        0xEA15
          Star                     0x8CB7
          0                        0xEC17
          Sharp                    0x8DB8
          Back                     0xF520
          Info                     0x84AF
          World                    0xF01B
          SeekLeft                 0x79A4
          Play                     0xFA25
          SeekRight                0x7BA6
          Pause                    0xFE29
          SkipLeft                 0x76A1
          SkipRight                0xF823
          Stop                     0x7DA8
          Record                   0xFC27
      end codes

end remote

# cat /etc/modprobe.d/lirc-blacklist.conf 
blacklist lirc_atiusb
blacklist ati_remote

I am so happy right now. Topic solved!

[Rubberman]

Klos, I like how you show what you did, and not just said "It's solved" like a lot of folks do. This is the sort of thing that can help others when they run into a similar problem. Well done! and thanks!

[Kloschüssel]

Thanks. One does what he can and I follow the strict principle for a GPL licensed software. All provided comes AS IS, without warranties. The above worked for me and if one has to modify things, make the results public. Greetings, D.