ubiquity crashed with DBusException in call_blocking()

Binary package hint: ubiquity

My PC
Architecture: i686
CPU op-mode(s): 64-bit
CPU(s): 3
Thread(s) per core: 1
Core(s) per socket: 3
CPU socket(s): 1
Vendor ID: AuthenticAMD
CPU family: 16
Model: 2
Stepping: 3
CPU MHz: 2100.140
Virtualization: AMD-V
L1d cache: 64K
L1i cache: 64K
L2 cache: 512K
L3 cache: 2048K

ubuntu@ubuntu:~$ lsmod
Module Size Used by
parport_pc 26058 0
ppdev 5556 0
lp 7342 0
dm_crypt 11385 0
parport 31492 3 parport_pc,ppdev,lp
binfmt_misc 6599 1
snd_hda_codec_realtek 217980 1
snd_hda_intel 22107 5
snd_hda_codec 87552 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 5040 1 snd_hda_codec
snd_pcm 71475 3 snd_hda_intel,snd_hda_codec
snd_seq_midi 4588 0
ir_lirc_codec 3092 0
snd_rawmidi 17783 1 snd_seq_midi
lirc_dev 9393 1 ir_lirc_codec
bttv 112152 0
snd_seq_midi_event 6047 1 snd_seq_midi
ir_sony_decoder 1889 0
v4l2_common 17329 1 bttv
snd_seq 47174 2 snd_seq_midi,snd_seq_midi_event
ir_jvc_decoder 1950 0
videodev 43098 2 bttv,v4l2_common
snd_timer 19067 3 snd_pcm,snd_seq
ir_rc6_decoder 2334 0
v4l1_compat 13359 1 videodev
snd_seq_device 5744 3 snd_seq_midi,snd_rawmidi,snd_seq
ir_rc5_decoder 1950 0
videobuf_dma_sg 9806 1 bttv
videobuf_core 16907 2 bttv,videobuf_dma_sg
btcx_risc 3636 1 bttv
ir_nec_decoder 2014 0
ir_common 5167 1 bttv
snd 49006 17 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
ir_core 14654 8 ir_lirc_codec,bttv,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,ir_nec_decoder,ir_common
rt2870sta 405890 1
psmouse 59033 0
tveeprom 11178 1 bttv
i2c_nforce2 5179 0
serio_raw 4022 0
soundcore 880 1 snd
joydev 8735 0
k10temp 2607 0
snd_page_alloc 7120 2 snd_hda_intel,snd_pcm
crc_ccitt 1351 1 rt2870sta
squashfs 25209 1
aufs 152358 4691
nls_iso8859_1 3261 1
nls_cp437 4931 1
vfat 9201 1
fat 48240 1 vfat
dm_raid45 81721 0
xor 15136 1 dm_raid45
btrfs 489451 0
zlib_deflate 19266 1 btrfs
crc32c 2531 1
libcrc32c 887 1 btrfs
usbhid 36882 0
hid 67742 1 usbhid
nouveau 516971 2
ttm 56633 1 nouveau
usb_storage 40172 1
drm_kms_helper 30200 1 nouveau
drm 168054 4 nouveau,ttm,drm_kms_helper
agpgart 32011 2 ttm,drm
pata_amd 8746 0
firewire_ohci 21106 0
firewire_core 46643 1 firewire_ohci
i2c_algo_bit 5168 2 bttv,nouveau
crc_itu_t 1383 1 firewire_core
sata_nv 19420 1
forcedeth 49433 0

ubuntu@ubuntu:~$ df
Filesystem 1K-blocks Used Available Use% Mounted on
aufs 1483160 54852 1428308 4% /
none 1477160 268 1476892 1% /dev
/dev/sdb1 1966448 924036 1042412 47% /cdrom
/dev/loop0 676480 676480 0 100% /rofs
none 1483160 168 1482992 1% /dev/shm
tmpfs 1483160 48 1483112 1% /tmp
none 1483160 92 1483068 1% /var/run
none 1483160 4 1483156 1% /var/lock

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: ubiquity 2.4.8
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
Architecture: i386
Date: Sun Oct 31 06:31:37 2010
ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
InterpreterPath: /usr/bin/python2.6
LiveMediaBuild: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdline: /usr/bin/python /usr/lib/ubiquity/bin/ubiquity gtk_ui
ProcEnviron: Error: [Errno 13] Permission denied: '/proc/4436/environ'
PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
SourcePackage: ubiquity
Title: ubiquity crashed with DBusException in call_blocking()
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