[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Micah Gersten]

This appears to be something local to your system as AFAICT, there's no
LD_PRELOAD set variable in the base install.  Please report any other
issues you may find.

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

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

I responded too fast, it seems it's a Flash library in LD_PRELOAD causing the 
problems.
The standard environment is set up like this:
LD_PRELOAD=/opt/trinity/lib/kgtk/libkgtk2.so:/usr/lib/libnspr4.so

With:
LD_PRELOAD=/opt/trinity/lib/kgtk/libkgtk2.so firefox

Works without problems. I'm not sure why this library is in LD_PRELOAD.
But this seems to be related to the hang.

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

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

Seems the hang is related to Trinity's kgtk module. My apologies for the
inconvenience.

Others who drop by here, the fix is:
sudo apt-get remove kgtk-qt3-trinity

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

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

I just received a report from another user who experiences the exact
same issue. It seems to occur when plug-ins are being used by a webpage.
If there is any more information I can provide to help solve this, let
me know!

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

Hi, my apologies, I had indeed missed this. Here is the output from gdb
when running Firefox in it and reproducing the hang. It appears there
are some library mismatches in the current version. The commands were
all given at the moment Firefox hung:

mixcoatl@america:~$ firefox -g -d gdb
GNU gdb (GDB) 7.1-ubuntu
Copyright (C) 2010 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 "x86_64-linux-gnu".
For bug reporting instructions, please see:
...
Reading symbols from /usr/lib/firefox/firefox...Reading symbols from 
/usr/lib/debug/usr/lib/firefox/firefox...done.
done.
(gdb) handle SIG33 noprint nostop
Signal Stop Print Pass to program Description
SIG33 No No Yes Real-time event 33
(gdb) run
Starting program: /usr/lib/firefox/firefox
[Thread debugging using libthread_db enabled]
[New Thread 0x7fffe6b6b700 (LWP 4434)]
[New Thread 0x7fffe5ded700 (LWP 4435)]
[New Thread 0x7fffe51ff700 (LWP 4436)]
[New Thread 0x7fffe41d8700 (LWP 4437)]
[New Thread 0x7fffe37d4700 (LWP 4438)]
[New Thread 0x7fffe2bd3700 (LWP 4439)]
[New Thread 0x7fffe1aff700 (LWP 4440)]
[New Thread 0x7fffddf39700 (LWP 4441)]
[New Thread 0x7fffdd738700 (LWP 4442)]
[New Thread 0x7fffdcf37700 (LWP 4443)]
[New Thread 0x7fffdc736700 (LWP )]
[New Thread 0x7fffdbf35700 (LWP 4445)]
[Thread 0x7fffddf39700 (LWP 4441) exited]
[Thread 0x7fffdcf37700 (LWP 4443) exited]
[Thread 0x7fffdbf35700 (LWP 4445) exited]
[New Thread 0x7fffddf39700 (LWP 4446)]
[New Thread 0x7fffdcf37700 (LWP 4447)]
[New Thread 0x7fffdbf35700 (LWP 4448)]
[New Thread 0x7fffd97b6700 (LWP 4449)]
[New Thread 0x7fffd8fb5700 (LWP 4450)]
[New Thread 0x7fffd7eff700 (LWP 4451)]
[New Thread 0x7fffd6ef9700 (LWP 4452)]
[New Thread 0x7fffd4dff700 (LWP 4453)]
[New Thread 0x7fffd45fe700 (LWP 4454)]
^[[A^[[B[New Thread 0x7fffd3bff700 (LWP 4455)]
[New Thread 0x7fffd01ff700 (LWP 4456)]
[New Thread 0x7fffcf9fe700 (LWP 4457)]
[New Thread 0x7fffcf1fd700 (LWP 4458)]
[New Thread 0x7fffce9fc700 (LWP 4459)]
/usr/lib/firefox/plugin-container: symbol lookup error: 
/usr/lib/firefox/libxul.so: undefined symbol: PR_GetVersion
backtrace
bt full/usr/lib/firefox/plugin-container: symbol lookup error: 
/usr/lib/firefox/libxul.so: undefined symbol: PR_GetVersion
bt full
thread apply all backtrace full
[Thread 0x7fffcf1fd700 (LWP 4458) exited]

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Chris Coulson]

All of those work fine here. Please provide the information requested at
https://wiki.ubuntu.com/MozillaTeam/Bugs#Hangs.2C_or_excessive_CPU_usage.

In future, please read the bug reporting guidelines before reporting a
bug. We provide a link to it (and ask you to read it) on the bug
submission form.

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

Here is a list of sites where it immediately crashes:
http://www.nos.nl/
http://www.milenio.com/
http://www.youtube.com/

Also a third tab, whatever site it is, even an empty tab.

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Micah Gersten]

Site or group of sites

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Micah Gersten]

Thank you for reporting this to Ubuntu.  Do you have a site where this
behavior is reliably reproducible?

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

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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[Bug 1010208] Re: Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang dialog is displayed

[Julius Schwartzenberg]

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Title:
  Firefox 13.0 on Lucid hangs very often, sometimes a JavaScript hang
  dialog is displayed

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