Reply to request for more info:
The only changes to the system, since recent updates, is that the kernel
is now 3.8.0-22 generic.
By the way, the file manager is Thunar 1.6.2.
As mentioned above, the crash is not always reproducible and seems to
occur on an inconsistent basis. However, I can usually cause the
operating system to crash by first running either Firefox or
Thunderbird, then starting the other one of these two applications after
the first one has run. Therefore, the system crash is mostly related to
Firefox and Thunderbird, but the system sometimes crashes even when I
have not opened either Firefox or Thunderbird at all during the whole
session.
The Flash package is 11.2.202.285ubuntu0.13.04.1
The Java packages I have are:
OpenJDK Java runtime 7u21-2.3.9-1ubuntu1
OpenJDK Java runtime libraries 7u21-2.3.9-1ubuntu1
libreoffice-officebean 1:4.0.2-0ubuntu1
tzdat-java 2013b-1ubuntu1
libhsqldb-java 1.8.0.10-14ubuntu1
ca-certivicates-java 20121112+nmu2
The Firefox 21.0 extensions are:
Countwords 1.1
Easy Google Translate 4.3
Firebug 1.11.3
FireFTP 2.0.14
Global Menu Bar Integration 4.1
Greek English Spelling dictionary 0.5.5
HTTPS Finder 0.86
ImTranslator 5.5
Open Comment 0.44
Page Speed 1.12.9.1
SEO and Website Analysis 1.1
Ubuntu Firefox Modifications 2.6
Firefox Plugins are:
LibreOffice Plug-in
Shockwave Flash 11,2,202,285
Thunderbird 17.0.6 Extensions are:
EDS Contact Integration 0.5
Global Menu Bar Integration 3.6.4
Greek Translator 0.7.3
Lightning 1.9
Messaging Menu and Unity Launcher Integration 1.3.1
Provider for Google Calendar 0.18
Sync Kolab 3.1.0
Timezone Definitions for Mozilla Calendar 1.2011n
www.Tran 5.2
Thunder Plugins are:
LibreOffice Plug-in
Shockwave Flash 11,2,202,285
I caused the operating system to crash when starting up Firefox (after
previously starting up Thunderbird). Then I cold-booted the system and
the following was all that the dbg.txt file said:
GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/firefox/firefox...Reading symbols from
/usr/lib/debug/usr/lib/firefox/firefox...done.
done.
(gdb) handle SIG33 pass nostop noprint
Signal Stop Print Pass to program Description
SIG33 No No Yes Real-time event 33
(gdb) set pagination 0
(gdb) set pagination
0[K[K[K[K[K[K[K[K[K[K[K[K[K[K[K[Krun
Starting program: /usr/lib/firefox/firefox
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Likewise, I caused the operating system to crash when I started up
Thunderbird (after previously starting up Firefox). Then I cold-booted
the system and the following was all that the dbg.text report said:
GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/thunderbird/thunderbird...Reading symbols from
/usr/lib/debug/usr/lib/thunderbird/thunderbird...done.
done.
(gdb) set pagination 0
(gdb) handle SIG33 pass nostop noprint
Signal Stop Print Pass to program Description
SIG33 No No Yes Real-time event 33
(gdb) set pagination 0
(gdb) run
Starting program: /usr/lib/thunderbird/thunderbird
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
I hope this helps.
Thanks for looking at this problem.
Greg.
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1176062
Title:
System crashes when starting Firefox and/or Thunderbird
Status in “firefox” package in Ubuntu:
Incomplete
Status in “thunderbird” package in Ubuntu:
Incomplete
Bug description:
When starting up either Firefox or Thunderbird,the system freezes.
First the cursor usually freezes and no input is possible, but the
desktop display remains, sometimes for a few seconds. Then a pattern
of horizontal bars appears on the screen. The bars are about two or
three inches wide and about an eighth of an inch high, in various
shades of color or black and white. Each thin horizontal bar looks
like it is a sliver copied from the display picture that existed on
the screen before the crash.
System almost always crashes when I click on an e-mail link in
Thunderbird, as soon as the system attempts to start up the Firefox
browser.
System frequently crashes if I attempt to start up either Firefox or
Thunderbird after I have previously run the other application. So, if
I run Thunderbird and close it, then try to run Firefox, a crash
occurs. Or if I run Firefox and close it, then try to run Thunderbird,
I get a crash.
System occasionally crashes the first time I try to run either Firefox
or Thunderbird, even when I have never opened either application
previously during the session.
Basically, I can only use either Firefox or Thunderbird once, or
sometimes twice, per session, before the system freezes and requires a
cold boot.
System crashed after leaving it for a few hours. The screen saver
blanked out the screen by that time, I move the cursor, the
application I had been using appeared briefly (it was a Sudoko game I
had been playing a few hours earlier), then the lines appeared in its
place and the system froze.
Pressing Alt+SysRq+1 followed by Alt+SysRq+t does nothing. It is a
total system freeze and requires a cold boot.
Problem began after installing upgrade to Ubuntu 13.04 (raring).
My system is:
Ubuntu 13.04 (raring)
Gnome 3.6.3
Kernel 3.8.0-19 generic
GCC Version 1.13.3
CPU Athentic AMD
Model AMD Athlon 7850 Dual-Core
Graphics Card: NVIDIA C61 (GeForce 7025 / nForce 630a)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1176062/+subscriptions
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