gpointing-device-settings crashed with SIGSEGV in __strcmp_sse42()

[Maurice Aarts]

Binary package hint: gpointing-device-settings

After a reboot clicking on the Pointing Devices option in the System>Preferences menu caused a segfault.
This bug is reproducible by clicking the option, and causes gpointing-device-settings to be inaccessible.

Description: Ubuntu maverick (development branch)
Release: 10.10

gpointing-device-settings:
  Installed: 1.5.1-2
  Candidate: 1.5.1-2
  Version table:
 *** 1.5.1-2 0
        500 http://nl.archive.ubuntu.com/ubuntu/ maverick/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: gpointing-device-settings 1.5.1-2
ProcVersionSignature: Ubuntu 2.6.35-21.31-generic 2.6.35.4
Uname: Linux 2.6.35-21-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Wed Sep 15 10:23:43 2010
ExecutablePath: /usr/bin/gpointing-device-settings
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
ProcCmdline: gpointing-device-settings
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/zsh
SegvAnalysis:
 Segfault happened at: 0x7fea71a5f73a <__strcmp_sse42+26>: movdqu (%rsi),%xmm2
 PC (0x7fea71a5f73a) ok
 source "(%rsi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm2" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gpointing-device-settings
StacktraceTop:
 __strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp.S:130
 gpds_xinput_utils_get_device_info () from /usr/lib/libgpds.so.0
 gpds_xinput_utils_exist_device () from /usr/lib/libgpds.so.0
 ?? () from /usr/lib/libgpds.so.0
 ?? () from /usr/lib/gpointing-device-settings/module/mouse.so
Title: gpointing-device-settings crashed with SIGSEGV in __strcmp_sse42()
UserGroups: adm admin audio cdrom dialout fax fuse lpadmin netdev plugdev sambashare video
XsessionErrors:
 (polkit-gnome-authentication-agent-1:2215): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (bluetooth-applet:2222): Gtk-CRITICAL **: IA__gtk_widget_set_sensitive: assertion `GTK_IS_WIDGET (widget)' failed
 (gnome-panel:2212): GConf-WARNING **: Directory `/apps/panel/toplevels/bottom_panel_screen1/screen' was not being monitored by GConfClient 0x15a0240
 (gnome-panel:2212): GConf-WARNING **: Directory `/apps/panel/toplevels/top_panel_screen1/screen' was not being monitored by GConfClient 0x15a0240

[Maurice Aarts (ice-blade)]

Sep 15 15:22:20 AartsA kernel: [ 1501.507788] gpointing-devic[3153]: segfault at 0 ip 00007fa45216b2f5 sp 00007fffc67b2020 error 4 in touchpad.so[7fa452168000+7000]
Sep 15 15:22:50 AartsA kernel: [ 1531.149706] gpointing-devic[3161]: segfault at 0 ip 00007f86497cf2f5 sp 00007fff441e3c40 error 4 in touchpad.so[7f86497cc000+7000]
Sep 15 15:23:31 AartsA kernel: [ 1572.211670] gpointing-devic[3171]: segfault at 0 ip 00007fa7b5d562f5 sp 00007fff056f8170 error 4 in touchpad.so[7fa7b5d53000+7000]
Sep 15 15:25:33 AartsA kernel: [ 1694.377881] gpointing-devic[3201]: segfault at 0 ip 00007f1a20f8a2f5 sp 00007fffa6b59b90 error 4 in touchpad.so[7f1a20f87000+7000]
Sep 15 15:26:01 AartsA kernel: [ 1722.497181] gpointing-devic[3222]: segfault at 0 ip 00007f8d199a52f5 sp 00007fff40414070 error 4 in touchpad.so[7f8d199a2000+7000]

This now only occurs when I attempt to open the settings applet through the menu or with Alt+F2.
Running gpointing-device-settings from a normal commandline also causes the segfault.
Running gpointing-device-settings from a (root) commandline opens the applet normally without the segfault.

It appears either the menu settings are forgetting to call a gksudo, or the code that checks for superuser rights is buggy.
As the application can still be used by prepending a gksudo or running it from root this is not a critical bug, however it is rather annoying that you can't use the menu link.
Thanks!

[Apport retracing service (apport)]

StacktraceTop:
 __strcmp_sse42 () from /lib/libc.so.6
 gpds_xinput_utils_get_device_info (device_name=0x0,
 gpds_xinput_utils_exist_device (
 is_available (ui=0xc07400, error=0x0)
 is_available (ui=0xc07400, error=0x0)

[nathan (ferrisn)]

I'm having the same problem on amd64 with gpointing-device-settings 1.5.1-2 on 10.10 (just upgrade from 10.04). However, I'm not able to get it to run as root, nor can I get the gksudo trick to work.

gpointing-devic[2284]: segfault at 0 ip 00007f35208c173a sp 00007fffdfe4efa8 error 4 in libc-2.12.1.so[7f352079b000+17a000]
gpointing-devic[2350]: segfault at 0 ip 00007f68504102c4 sp 00007ffff4ee2118 error 4 in libc-2.12.1.so[7f68502e9000+17a000]
gpointing-devic[2369]: segfault at 0 ip 00007f1940d4c73a sp 00007fffc9c1ae78 error 4 in libc-2.12.1.so[7f1940c26000+17a000]
gpointing-devic[2381]: segfault at 0 ip 00007fb30f0e573a sp 00007fff2e1b7b38 error 4 in libc-2.12.1.so[7fb30efbf000+17a000]
gpointing-devic[2410]: segfault at 0 ip 00007f5a5dc3173a sp 00007fff59a43708 error 4 in libc-2.12.1.so[7f5a5db0b000+17a000]