[Bug 510548] Re: Crash on certain websites

[Draycen DeCator]

Could you please generate an apport crash report for this?
You can enable apport for one instance like this:
sudo service apport start force_start=1

I am marking this invalid as apport will open a new bug when the crash
is generated. If it does not, you can reset the status of this one to
New and we will try something else.

** Changed in: firefox (Ubuntu)
   Status: Incomplete => Invalid

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[Bug 510548] Re: Crash on certain websites

[Lepe]

I installed firefox-dbg ant tried to debug the error using gdb (I
followed the instructions in other post as is the first time I use gdb).
This is the output:

$ firefox -g
sh /usr/lib/firefox-3.6.3pre/run-mozilla.sh /usr/bin/gdb 
/usr/lib/firefox-3.6.3pre/firefox-bin -x /tmp/mozargs.oOAzUP
GNU gdb (GDB) 7.0-ubuntu
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
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 "i486-linux-gnu".
For bug reporting instructions, please see:
...
Reading symbols from /usr/lib/firefox-3.6.3pre/firefox...Reading symbols from 
/usr/lib/debug/usr/lib/firefox-3.6.3pre/firefox-bin...done.
(no debugging symbols found)...done.
(gdb) set args -a firefox --sync
(gdb) break gdk_x_error
Function "gdk_x_error" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y

Breakpoint 1 (gdk_x_error) pending.
(gdb) run
Starting program: /usr/lib/firefox-3.6.3pre/firefox -a firefox --sync
[Thread debugging using libthread_db enabled]

(firefox:2856): GLib-WARNING **: g_set_prgname() called multiple times
[New Thread 0xb53ffb70 (LWP 2860)]
[New Thread 0xb4bfeb70 (LWP 2861)]
[New Thread 0xb43fdb70 (LWP 2862)]
[New Thread 0xb36ffb70 (LWP 2863)]
[New Thread 0xb2cffb70 (LWP 2864)]
[Thread 0xb2cffb70 (LWP 2864) exited]
[New Thread 0xb2cffb70 (LWP 2865)]
[New Thread 0xb17bdb70 (LWP 2876)]
[New Thread 0xb0fbcb70 (LWP 2878)]
[New Thread 0xafc58b70 (LWP 2884)]
[New Thread 0xaf457b70 (LWP 2886)]
[Thread 0xb0fbcb70 (LWP 2878) exited]
[Thread 0xb2cffb70 (LWP 2865) exited]
[Thread 0xb17bdb70 (LWP 2876) exited]
[Thread 0xaf457b70 (LWP 2886) exited]
[New Thread 0xb2cffb70 (LWP 2953)]
[New Thread 0xb0fbcb70 (LWP 2954)]
[New Thread 0xaf457b70 (LWP 2966)]
[New Thread 0xb17bdb70 (LWP 2980)]
[Thread 0xb17bdb70 (LWP 2980) exited]
[New Thread 0xaafffb70 (LWP 3003)]
[Thread 0xaafffb70 (LWP 3003) exited]
[New Thread 0xaafffb70 (LWP 3007)]
[Thread 0xafc58b70 (LWP 2884) exited]
[New Thread 0xafc58b70 (LWP 3009)]
[New Thread 0xb17bdb70 (LWP 3010)]
[New Thread 0xa9affb70 (LWP 3011)]
[New Thread 0xa92feb70 (LWP 3012)]
[New Thread 0xa77ffb70 (LWP 3013)]
[Thread 0xa77ffb70 (LWP 3013) exited]
[New Thread 0xa77ffb70 (LWP 3017)]
[New Thread 0xa56ffb70 (LWP 3018)]
[New Thread 0xa40ffb70 (LWP 3019)]
[Thread 0xa40ffb70 (LWP 3019) exited]
[New Thread 0xa40ffb70 (LWP 3020)]
[Thread 0xa40ffb70 (LWP 3020) exited]
[New Thread 0xa40ffb70 (LWP 3021)]
[Thread 0xa40ffb70 (LWP 3021) exited]
[New Thread 0xa40ffb70 (LWP 3022)]
[Thread 0xa40ffb70 (LWP 3022) exited]

(firefox:2856): GLib-GObject-WARNING **: invalid unclassed pointer in
cast to `GtkObject'

(firefox:2856): GLib-GObject-WARNING **: instance with invalid (NULL)
class pointer

(firefox:2856): GLib-GObject-CRITICAL **: g_signal_handler_disconnect:
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(firefox:2856): GLib-GObject-WARNING **: instance with invalid (NULL)
class pointer

(firefox:2856): GLib-GObject-CRITICAL **: g_signal_handler_disconnect:
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(firefox:2856): GLib-GObject-WARNING **: invalid unclassed pointer in
cast to `GtkObject'

(firefox:2856): GLib-GObject-WARNING **: instance with invalid (NULL)
class pointer

(firefox:2856): GLib-GObject-CRITICAL **: g_signal_handler_disconnect:
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

(firefox:2856): GLib-GObject-WARNING **: instance with invalid (NULL)
class pointer

(firefox:2856): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: 
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
[New Thread 0xa40ffb70 (LWP 3023)]
[Thread 0xa40ffb70 (LWP 3023) exited]

Program received signal SIGSEGV, Segmentation fault.
0xb694d072 in g_type_check_instance_cast () from /usr/lib/libgobject-2.0.so.0
(gdb)

NOTE: I had to rename some files in order to use gdb as it was saying
that "firefox" was not a binary file (it was trying to read a shell
script in /usr/lib/firefox-3.6.3pre/firefox).

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[Bug 510548] Re: Crash on certain websites

[Lepe]

Hi Draycen, I created a new profile and even renamed the ~/.mozilla directory 
and still happens. 
As a note, If it doesn't crash after the second click, try a third or fourth 
click in the same list of links. 
You are using 10.04 while I'm using 9.10. I will try other ways to debug the 
error if possible and be
back as soon I have something to report. Thank you.

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[Bug 510548] Re: Crash on certain websites

[Draycen DeCator]

I tested with Firefox 3.6.3 on my Ubuntu 10.04 system and still was
unable to reproduce this crash.

Sometimes Firefox profiles can become corrupt and/or extensions can
conflict.  Could you please try this with a new profile and see if the
problem still exists?  You do not need to delete your old profile to
test.  If this helps, you might want to try to disable all your
extensions and re-enable them one by one until you find the problematic
one.

You can start the profile manager with the following command:
firefox -ProfileManager

** Changed in: firefox (Ubuntu)
   Status: New => Incomplete

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[Bug 510548] Re: Crash on certain websites

[Lepe]

I tested in other computer with Xubuntu karmic 64bits and firefox
3.6.3pre running, and It didn't crash.

Then, I installed the svn version 3.6.3pre (3.6.3~hg20100327r33760
+nobinonly-0ubuntu1~umd) from "http://ppa.launchpad.net/ubuntu-mozilla-
daily/ppa/ubuntu karmic main" repository and still have the same
(crashing) behavior.  I will perform the "apport-collect" report in this
moment.

Thank you.

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[Bug 510548] Re: Crash on certain websites

[Draycen DeCator]

Switching back to the 'firefox' package since we are no longer
separating Firefox bugs based on version.

@Lepe
I followed the directions you provided and Firefox 3.7 on Ubuntu 10.04 did not 
crash. Could you please run the following command in a terminal:

apport-collect 510548

This will automatically add information about your system to this report
so we can more easily determine the cause of this bug. Bear in mind that
you may need to install the python-launchpadlib package from the
universe repository.  Additionally, when prompted to give apport-collect
permissions for Launchpad you will need to give it at least the ability
to "Change Non-Private" data as it will be adding information to your
bug report.  Thanks in advance!

** Package changed: firefox-3.5 (Ubuntu) => firefox (Ubuntu)

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[Bug 510548] Re: Crash on certain websites

[Lepe]

I found a page where 100% of the times crashed. I disabled ALL plugins and 
still crash. This is how:
Enter this site: http://tenki.jp/forecast/city-38.html?selected=tenki&date=0
Then in the links at the middle (4 columns around 16 rows), where it says: 
(ピンポイント天気) (its in japanese), click in any of those. Then in the page that 
opens, click again in any of the same list of links. In my case, it crashes. As 
noted, this page uses many flash objects. I hope it helps.

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[Bug 510548] Re: Crash on certain websites

[Lepe]

I'm using "karmic-updates" repository:   
http://packages.ubuntu.com/karmic-updates/firefox-3.5
I don't have ubufox installed.
Since my last post, I have been using firefox without the "Flashblock" plugin 
but unfortunately firefox
still crashes. I have noticed that usually it crashes when clicking a link or 
displaying the "right-click" menu.
Even it have crashed in pages without any Flash content, I also noticed that it 
is more frequent when
they have flash content or the previously-loaded page had flash content.

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[Bug 510548] Re: Crash on certain websites

[Draycen DeCator]

Thank you for the extra information. However, it looks like you are
using Firefox from a PPA that is not supported by Ubuntu. Could you
please let us know what PPA you are using for Firefox?

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[Bug 510548] Re: Crash on certain websites

[Lepe]

Versions:
Ubuntu: ubuntu karmic 32bits (compiz enabled)
Firefox 3.5.8+build+nobinonly-0ubuntu0.9.10.1
libglib  2.22.3-0ubuntu1

Errors:
(firefox:17750): GLib-WARNING **: g_set_prgname() called multiple times
(firefox:17750): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 
`GtkObject'
(firefox:17750): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 
`GtkObject'
(firefox:17750): GLib-GObject-WARNING **: invalid unclassed pointer in cast to 
`GtkObject'
(firefox:17750): GLib-GObject-WARNING **: instance with invalid (NULL) class 
pointer
(firefox:17750): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: 
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
(firefox:17750): GLib-GObject-WARNING **: instance with invalid (NULL) class 
pointer
(firefox:17750): GLib-GObject-CRITICAL **: g_signal_handler_disconnect: 
assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
Segmentation fault

Sometimes I could reproduce the crash:
* Enter gmail and righ-clicked in a link inside a message.
which may rule-out the "flash" related problem...? (as gmail does not include 
flash objects)

However several times in different sites have crashed.

I'm not sure if the installed plugins are somehow related as when I disabled 
all of them it didn't crash (I performed few tests).
I activated one by one and test it again... but it was not consistent. However 
I found that  somehow when I deactivate "Flashblock" plugin crashes didn't 
happen under the same situation, but I can't be 100% sure.

All those errors can be seen also when firefox is restarted after the
activation/deactivation of a plugin.

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[Bug 510548] Re: Crash on certain websites

[Draycen DeCator]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. However, according to this report, you are not using the
most recent version of this package for your Ubuntu release. Please
upgrade to the most recent version and let us know if you are still
having this issue. Thanks in advance.

** Package changed: firefox (Ubuntu) => firefox-3.5 (Ubuntu)

** Changed in: firefox-3.5 (Ubuntu)
   Status: New => Incomplete

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