I clicked on xfce exit (upper right corner) and logout hung up.

[Sérgio]

Binary package hint: xfce4-panel

Using xubuntu 9.10 live CD.

ProblemType: Crash
Architecture: i386
Date: Tue Dec 8 10:52:14 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/xfce4-panel
LiveMediaBuild: Xubuntu 9.10 "Karmic Koala" - Release i386 (20091028.3)
Package: xfce4-panel 4.6.1-3ubuntu2
ProcCmdline: xfce4-panel
ProcEnviron:
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SegvAnalysis:
 Segfault happened at: 0xf50777 <SmcRequestSaveYourself+55>: movb $0x4,0x1(%eax)
 PC (0x00f50777) ok
 source "$0x4" ok
 destination "0x1(%eax)" (0x00000101) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: xfce4-panel
StacktraceTop:
 SmcRequestSaveYourself () from /usr/lib/libSM.so.6
 logout_session () from /usr/lib/libxfcegui4.so.4
 ?? ()
 ?? ()
 ?? () from /usr/lib/libgtk-x11-2.0.so.0
Title: xfce4-panel crashed with SIGSEGV in SmcRequestSaveYourself()
Uname: Linux 2.6.31-14-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:SmcRequestSaveYourself (smcConn=0x99c8978, saveType=2,
logout_session (session_client=0x99c8030)
?? ()
?? ()
_gtk_marshal_BOOLEAN__BOXED (closure=0x99c63e8,

[Charlie Kravetz (cjkgeek)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!

This is a possible duplicate of bug 53897, but it does appear to have a valid stacktrace.