segfault in unity_support_test

[Joost Ringoot]

After update to Ubuntu 13.04 I was unable to use unity as shell.
lxde and gnome appear to work fine.
When I choose unity the screen gives just the background and never arrives at the the point where the quicklist is visible or the dash.

I made a copy of the /var/log/syslog and then a "cat /dev/null > / var/log/syslog"

This is what I got in /var/log/syslog after a login attempt to unity:

root@legolas:/var/log# cat syslog
Jun 14 09:52:57 legolas colord: device removed: xrandr-LVDS1
Jun 14 09:52:57 legolas colord: Profile removed: icc-0aad3f9acbd994c5976bc9cd10292033
Jun 14 09:52:57 legolas bluetoothd[771]: Endpoint unregistered: sender=:1.362 path=/MediaEndpoint/HFPAG
Jun 14 09:52:57 legolas bluetoothd[771]: Endpoint unregistered: sender=:1.362 path=/MediaEndpoint/HFPHS
Jun 14 09:52:57 legolas bluetoothd[771]: Endpoint unregistered: sender=:1.362 path=/MediaEndpoint/A2DPSource
Jun 14 09:52:57 legolas bluetoothd[771]: Endpoint unregistered: sender=:1.362 path=/MediaEndpoint/A2DPSink
Jun 14 09:52:57 legolas bluetoothd[771]: hci0: Remove UUID (0x0011) failed: Busy (0x0a)
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Successfully made thread 7285 of process 7285 (n/a) owned by '1000' high priority at nice level -11.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Supervising 1 threads of 1 processes of 1 users.
Jun 14 09:52:57 legolas pulseaudio[7285]: [pulseaudio] pid.c: Stale PID file, overwriting.
Jun 14 09:52:57 legolas dbus[733]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper)
Jun 14 09:52:57 legolas dbus[733]: [system] Successfully activated service 'org.freedesktop.systemd1'
Jun 14 09:52:57 legolas colord: Device added: xrandr-LVDS1
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Successfully made thread 7312 of process 7285 (n/a) owned by '1000' RT at priority 5.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Supervising 2 threads of 1 processes of 1 users.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Successfully made thread 7313 of process 7285 (n/a) owned by '1000' RT at priority 5.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Supervising 3 threads of 1 processes of 1 users.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Successfully made thread 7314 of process 7285 (n/a) owned by '1000' RT at priority 5.
Jun 14 09:52:57 legolas rtkit-daemon[1840]: Supervising 4 threads of 1 processes of 1 users.
Jun 14 09:52:58 legolas bluetoothd[771]: Endpoint registered: sender=:1.375 path=/MediaEndpoint/HFPAG
Jun 14 09:52:58 legolas bluetoothd[771]: Endpoint registered: sender=:1.375 path=/MediaEndpoint/HFPHS
Jun 14 09:52:58 legolas bluetoothd[771]: Endpoint registered: sender=:1.375 path=/MediaEndpoint/A2DPSource
Jun 14 09:52:58 legolas bluetoothd[771]: Endpoint registered: sender=:1.375 path=/MediaEndpoint/A2DPSink
Jun 14 09:52:58 legolas rtkit-daemon[1840]: Successfully made thread 7319 of process 7319 (n/a) owned by '1000' high priority at nice level -11.
Jun 14 09:52:58 legolas rtkit-daemon[1840]: Supervising 5 threads of 2 processes of 1 users.
Jun 14 09:52:58 legolas pulseaudio[7319]: [pulseaudio] pid.c: Daemon already running.
Jun 14 09:52:58 legolas colord: Profile added: icc-9b80530f957bc21605981b113eb57c5c
Jun 14 09:52:58 legolas kernel: [ 2376.756271] unity_support_t[7352]: segfault at c2 ip 000000000040173f sp 00007fff55e49250 error 4 in unity_support_test[400000+4000]
Jun 14 09:53:28 legolas goa[7539]: goa-daemon version 3.6.2 starting [main.c:112, main()]
root@legolas:/var/log#

Thanks ahead, any suggestions welcome.

[Joost Ringoot (joost)]

some more messages in /var/log/syslog:

Jun 14 09:54:09 legolas kernel: [ 2448.290739] unity_support_t[7574]: segfault at c2 ip 000000000040173f sp 00007fffcf81db00 error 4 in unity_support_test[400000+4000]
Jun 14 09:55:21 legolas kernel: [ 2519.537193] compiz[7323]: segfault at 60 ip 00007f79a09acf40 sp 00007fff276b0d28 error 4 in libcomposite.so[7f79a099c000+22000]
Jun 14 09:56:11 legolas gnome-session[7199]: WARNING: Child process 7323 was already dead.
Jun 14 09:56:11 legolas gnome-session[7199]: WARNING: Application 'compiz.desktop' killed by signal 11
Jun 14 09:56:11 legolas gnome-session[7199]: WARNING: App 'compiz.desktop' respawning too quickly
Jun 14 09:56:11 legolas gnome-session[7199]: CRITICAL: We failed, but the fail whale is dead. Sorry....
Jun 14 09:56:11 legolas kernel: [ 2569.939232] unity_support_t[7596]: segfault at c2 ip 000000000040173f sp 00007fffb40009a0 error 4 in unity_support_test[400000+4000]

[Joost Ringoot (joost)]

for the record: I tested with lightdm and gdm, same thing: segfault for unity and not for gnome or lxde

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Andrea Azzarone (azzar1)]

Can you still reproduce that?

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]