Public bug reported:

Starting a container with 2.6.32-32 leads to the errors below, container will 
not start:

lxc-start 1306854843.605 ERROR    lxc_namespace - failed to clone(0x6c020000): 
Invalid argument
lxc-start 1306854843.605 ERROR    lxc_start - Bad file descriptor - failed to 
fork into a new namespace

When booting 2.6.32-31 again the container works fine.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-31-generic-pae 2.6.32-31.61
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-31.61-generic-pae 2.6.32.32+drm33.14
Uname: Linux 2.6.32-31-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  cperz      4000 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf8220000 irq 17'
   Mixer name   : 'Analog Devices AD1984'
   Components   : 'HDA:11d41984,17aa20d6,00100400'
   Controls      : 30
   Simple ctrls  : 19
Card1.Amixer.info:
 Card hw:1 'Glass'/'Guillemot Corporation Deluxe Optical Glass at 
usb-0000:00:1a.7-4.3, high speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB06f8:300d'
   Controls      : 2
   Simple ctrls  : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 13
   Mono: Capture 0 [0%] [18.00dB] [on]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 
7MHT25WW-1.03'
   Mixer name   : 'ThinkPad EC 7MHT25WW-1.03'
   Components   : ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Tue May 31 21:39:01 2011
MachineType: LENOVO 7673K4G
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-31-generic-pae root=/dev/sda3 ro 
ipv6.disable=1 splash quiet
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.7
SourcePackage: linux
WpaSupplicantLog:
 
dmi.bios.date: 10/09/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NETC1WW (2.21 )
dmi.board.name: 7673K4G
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: 
dmi:bvnLENOVO:bvr7NETC1WW(2.21):bd10/09/2009:svnLENOVO:pn7673K4G:pvrThinkPadX61:rvnLENOVO:rn7673K4G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7673K4G
dmi.product.version: ThinkPad X61
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 kconfig lucid needs-upstream-testing regression-release

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https://bugs.launchpad.net/bugs/790863

Title:
  Unable to start lxc container after update to 2.6.32-32

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