nm-applet crashed with SIGSEGV in applet_get_exported_connection_for_device() when enabling ad-hoc

[steubens]

Description: Ubuntu 9.10

network-manager:
  Installed: 0.8~a~git.20091013t193206.679d548-0ubuntu1

3) didn't really know what to expect, i was just playing around with it; ad-hoc networks show up on other computers as random SSID garbage (and there are several of them)

4) nm-applet kept spamming the screen saying it was connecting/disconnecting to the new network (console said notifications were throttled at 50, so its doing it a lot and fast), eventually nm-applet would crash

02:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01)
other card tried was a usb rtl8187

wlan1 RTL8187 rtl8187 - [phy2]
 Supported interface modes:
   * managed
   * monitor

wlan0 Atheros ath5k - [phy0]
 Supported interface modes:
   * IBSS
   * managed
   * AP
   * AP/VLAN
   * monitor
   * mesh point

ProblemType: Crash
Architecture: amd64
Date: Sat Dec 5 19:44:13 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/nm-applet
IfupdownConfig:
 auto lo
 iface lo inet loopback
IpRoute:
 10.0.0.0/24 dev eth0 proto kernel scope link src 10.0.0.6 metric 1
 169.254.0.0/16 dev eth0 scope link metric 1000
 default via 10.0.0.1 dev eth0 proto static
Package: network-manager-gnome 0.8~a~git.20091014t134532.4033e62-0ubuntu1
ProcCmdline: nm-applet
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-16.52-generic
SegvAnalysis:
 Segfault happened at: 0x41713f <applet_get_exported_connection_for_device+127>: repz cmpsb %es:(%rdi),%ds:(%rsi)
 PC (0x0041713f) ok
 source "%es:(%rdi)" (0x00449150) ok
 destination "%ds:(%rsi)" (0x00000000) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: network-manager-applet
StacktraceTop:
 applet_get_exported_connection_for_device ()
 ?? ()
 ?? ()
 IA__g_closure_invoke (closure=0x14242a0,
 signal_emit_unlocked_R (node=0x1337340,
Title: nm-applet crashed with SIGSEGV in applet_get_exported_connection_for_device()
Uname: Linux 2.6.31-16-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
WpaSupplicantLog:

XsessionErrors:
 (gnome-settings-daemon:2277): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:2372): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:2357): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (gnome-panel:2356): Gdk-WARNING **: /build/buildd/gtk+2.0-2.18.3/gdk/x11/gdkdrawable-x11.c:952 drawable is not a pixmap or window

[KojiroAK (kojiroak)]

Had the same with Lucid Lynx

[KojiroAK (kojiroak)]

Also had it again that it showed me, that it is connected, then that it isn't connected anymore and so on until I deleted the ad-hoc network in the connection editor.

Here are further Informations what happend earlier:
https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/562117

[Scott Moser (smoser)]

Marking this confirmed. This is reproducible here using lucid with ~ RC. I'm upgrading now . There are no network-manager updates coming, but a kernel update.

[Scott Moser (smoser)]

This is still present for me on 10.04 updated yesterday (2 days before lucid release).
$ dpkg-query --show network-manager
network-manager 0.8-0ubuntu3

[Rohan Arora (arora-rohan)]

I also have the same problem.. The adhoc just worked once..but after a restart..nope it went kaput!.. and when i started the terminal : showed me this :

** (nm-applet:2873): WARNING **: _nm_object_get_property: Error getting 'Connection' for /org/freedesktop/NetworkManager/ActiveConnection/22: (19) Method "Get" with signature "ss" on interface "org.freedesktop.DBus.Properties" doesn't exist

Segmentation fault

Will this be fixed?

[Rohan Arora (arora-rohan)]

Alright..managed to fix it.. this is what it did:

1. Created a new wireless Adhoc connection in my phone..
2. Ubuntu was able to discover it but when i clicked on it..it wouldn't connect
3. So, sitting around..i clicked on " create new wireless network " ..and this time it connected...and the problem didnt come..
4. so now basically first i created a connx from my phone which ubuntu discovers but isnt able to connect to..but when i created a new connection from the nm-applet gui..the connect disconnect problem didnt come..and im able to use adhoc now..but on the new connection which i created in ubuntu...damn..what a lame fix...

[sarathy (sps-sarathy)]

Program received signal SIGSEGV, Segmentation fault.
0x0805a6ea in applet_get_exported_connection_for_device ()
(gdb) bt
#0 0x0805a6ea in applet_get_exported_connection_for_device ()
#1 0x0806c5cb in ?? ()
#2 0x0805fdd1 in ?? ()
#3 0x0014b576 in ?? () from /usr/lib/libnm-glib.so.2
#4 0x00ac2252 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#5 0x00ad699d in ?? () from /usr/lib/libgobject-2.0.so.0
#6 0x00ad7db4 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#7 0x00ad8256 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#8 0x0013c0c8 in ?? () from /usr/lib/libnm-glib.so.2
#9 0x0014b576 in ?? () from /usr/lib/libnm-glib.so.2
#10 0x00717244 in ?? () from /usr/lib/libdbus-glib-1.so.2
#11 0x00ac2252 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#12 0x00ad699d in ?? () from /usr/lib/libgobject-2.0.so.0
#13 0x00ad7db4 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#14 0x00ad8256 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#15 0x00718513 in ?? () from /usr/lib/libdbus-glib-1.so.2
#16 0x00a74c6d in dbus_connection_dispatch () from /lib/libdbus-1.so.3
#17 0x0070e92d in ?? () from /usr/lib/libdbus-glib-1.so.2
#18 0x00b405e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#19 0x00b442d8 in ?? () from /lib/libglib-2.0.so.0
#20 0x00b44817 in g_main_loop_run () from /lib/libglib-2.0.so.0
#21 0x08059c87 in main ()
(gdb) q

This stack trace was in 10.04 with the latest update as of today. Steps to reproduce.

1. Start nm-applet from command line.

2. Created a new wireless network 'X'

3. Tried connecting to this network 'X' from another laptop which has a wireless card.

4. nm-applet crashed after a few seconds.

[dino99 (9d9)]

This version is outdated and no more supported