[X2Go-User] x2go segmentation fault

Buddy Butterfly buddy.butterfly at web.de
Tue Feb 4 12:45:40 CET 2014


Hi there,

we started to use x2go via ssh proxying.
>From there on we experience segmentation faults.
In the syslog excerpt below you can see that it starts
with the segfault. The last line with the pulse audio
is repeated hundreds of times.

Server: Kubuntu 12.10 amd64, version 4.0.1.13-0~814~ubuntu12.10.1

Client: Windows 7 Professional SP1 - 64bit, X2GoClient V. 4.0.1.3 (Qt -
4.8.5)

After the crash there is a stale session.

Any clue what reason it could be?

Cheers,
Matt


Excerpt from syslog:

--- snip ---

kernel: [18229.879394] x2goagent[17619]: segfault at 7fff1780fff8 ip
00007fcb8ac64c29 sp 00007fff17810000 error 6 in
libNX_X11.so.6.2[7fcb8ac1a000+11b000]
Feb  4 11:56:53 mwwst2 /usr/bin/x2gosuspend-session: session with ID
XXXX-50-1391503950_stDKDE_dp32 has been suspended successfully
Feb  4 11:56:54 mwwst2 /usr/bin/x2goumount-session[20602]: successfully
unmounted "/tmp/.x2go-XXXX/media/disk/_cygdrive_E_transfer"
Feb  4 11:56:55 mwwst2 /usr/bin/x2goumount-session[20602]: successfully
unmounted "/tmp/.x2go-XXXX/spool/C-XXXX-50-1391503950_stDKDE_dp32"
Feb  4 11:56:55 mwwst2 /usr/bin/x2goumount-session[20657]: ERROR: failed
to unmount "/tmp/.x2go-XXXX/spool/C-XXXX-50-1391503950_stDKDE_dp32"
Feb  4 11:56:56 mwwst2 kernel: [18232.328575] QProcessManager[18602]:
segfault at 0 ip           (null) sp 00007f3c20a4d868 error 14 in
nepomukservicestub[400000+7000]
Feb  4 11:56:56 mwwst2 kernel: [18232.549131] device eth2 left
promiscuous mode
Feb  4 11:56:56 mwwst2 kernel: [18232.580286] vboxnetflt: 14424 out of
235203 packets were not sent (directed to host)
Feb  4 11:57:34 mwwst2 /usr/bin/x2gostartagent: successfully started
X2Go agent session with ID XXXX-51-1391511452_stDKDE_dp32
Feb  4 11:57:38 mwwst2 /usr/bin/x2goruncommand: launching session with
Xsession-x2go mechanism, using STARTUP="startkde"
Feb  4 11:57:39 mwwst2 /usr/bin/x2gosetkeyboard: Setting X keyboard
according to /home/XXXX/.x2go/C-XXXX-51-1391511452_stDKDE_dp32/keyboard
Feb  4 11:57:42 mwwst2 dbus[1572]: [system] Activating service
name='org.kde.powerdevil.backlighthelper' (using servicehelper)
Feb  4 11:57:42 mwwst2 org.kde.powerdevil.backlighthelper:
QDBusConnection: system D-Bus connection created before
QCoreApplication. Application may misbehave.
Feb  4 11:57:42 mwwst2 dbus[1572]: [system] Successfully activated
service 'org.kde.powerdevil.backlighthelper'
Feb  4 11:57:44 mwwst2 NetworkManager[1676]: <info> Unmanaged Device
found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889)
Feb  4 11:57:45  NetworkManager[1676]: last message repeated 3 times
Feb  4 11:57:45 mwwst2 /usr/bin/x2gomountdirs[22353]: successfully
mounted Rubilak at 127.0.0.1:30009/cygdrive/E/transfer to
/tmp/.x2go-XXXX/media/disk/_cygdrive_E_transfer
Feb  4 11:57:47 mwwst2 /usr/bin/x2gomountdirs[22353]: successfully
mounted
Rubilak at 127.0.0.1:30009/cygdrive/C/Users/Rubilak/X2GO~1/S-0B78~1/spool
to /tmp/.x2go-XXXX/spool/C-XXXX-51-1391511452_stDKDE_dp32
Feb  4 11:57:57 mwwst2 hp-systray: hp-systray[22566]: warning: No hp: or
hpfax: devices found in any installed CUPS queue. Exiting.
Feb  4 11:58:00 mwwst2 /usr/bin/x2gosuspend-session: session with ID
XXXX-51-1391511452_stDKDE_dp32 has been suspended successfully
Feb  4 11:58:01 mwwst2 /usr/bin/x2goumount-session[22773]: successfully
unmounted "/tmp/.x2go-XXXX/media/disk/_cygdrive_E_transfer"
Feb  4 11:58:01 mwwst2 /usr/bin/x2goumount-session[22773]: ERROR: failed
to unmount "/tmp/.x2go-XXXX/spool/C-XXXX-51-1391511452_stDKDE_dp32"
Feb  4 11:58:04 mwwst2 pulseaudio[22879]: [pulseaudio] main.c:
Benutzerkonfigurierter Server unter localhost:30008 verweigert den
Start/Autospawn.
Feb  4 11:58:06 mwwst2 pulseaudio[22890]: [pulseaudio] main.c:
Benutzerkonfigurierter Server unter localhost:30008 verweigert den
Start/Autospawn.
Feb  4 11:58:06 mwwst2 pulseaudio[22892]: [pulseaudio] main.c:
Benutzerkonfigurierter Server unter localhost:30008 verweigert den
Start/Autospawn.
Feb  4 11:58:10 mwwst2 pulseaudio[22908]: [pulseaudio] main.c:
Benutzerkonfigurierter Server unter localhost:30008 verweigert den
Start/Autospawn.

--- snap ---




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