adobe flash player plugin always crashes on youtube

I don't think it's firefox related. I just saw the very same crash with Opera. It worked with Opera yesterday but not anymore.

I saw somewhere that deleting cookies (not sure which)would solve it for some time but it would eventually come back.

This link suggests it's to do with youtube's new layout

http://www.uluga.ubuntuforums.org/showpost.php?p=10516541&postcount=6

Yes it seems youtube's new layout is triggering the issue; however if the flash player plugin crash the flash player plugin has a bug that has to be fixed.

What is the correct package to report the bug to?

I think the flashplugin-installer package.

Have you tried on another browser (e.g chromium)?
I think it's a problem of Flash, regardless of the browser.

Right, here is my setup to reproduce the problem:

Ubuntu: 10.10
arch: 64 bits
Firefox: 3.6.15
Flash: 10.3 d162 (64 bits from http://ppa.launchpad.net/sevenmachines/flash/ubuntu) and 10.2.152.27 (from ubuntu repository)

Steps to reproduce:

1. Point Firefox to a youtube playlist (eg: http://www.youtube.com/watch?v=V1bFr2SWP1I&feature=autoplay&list=PLEDF2230BC83F482F&index=2&playnext=2 )

2. Change to another FF tab, or another window
3. Wait for the video to end

Expected result:
The next video should start playing

Actual result:
Flash crash (see attachment)

This bug is not reproducible in Opera: in Opera the next video plays normally.
Also, this didn't happen some weeks ago, so it might have been introduced in a recent upgrade.
Just for the record, my current kernel is 2.6.35-28-generic

@wild_oscar:
> Also, this didn't happen some weeks ago,
> so it might have been introduced in a recent upgrade.

Might be as you say, but it might as well be because in the last week YouTube has been changing its player (to fix some issues), so maybe the new version of the player does something it didn't use to do, triggering a bug in the player that was already there but didn't use to surface.

@Christopher:

> + Could you please obtain a backtrace by following the
> instructions on https://wiki.ubuntu.com/MozillaTeam/Bugs?

Correct me if I am wrong: those instructions are for getting a backtrace when Firefox crashes. In this case Firefox does not crash, only the flash pugin crashes. Will those steps be useful in this case as well?

> + Could you please provide step-by-step instructions that lead to the crash?

I haven't found a sequence of steps that systematically triggers the crash 100% of the times. However any of the following will ALMOST always make the plugin crash:

A) 1. open www.youtube.com
   2. add some videos to the queue
   3. play the queue
   4. wait for the first video to finish (or skip to near to the end)
   => when the following video loads, the plugin will probably crash

or

B) 1. open www.youtube.com and play any video
   2. switch to fullscreen mode
   3. exit fullscreen mode
   => crash

The latter seems to happen especially if you exit fullscreen when the video is buffering, but this may be only my impression

I attach the about:plugin page as you asked

Since yesterday I'm not experiencing these crashes anymore. Is this the same
for you ?
Il giorno 11/mar/2011 13.52, "matteo sisti sette" <email address hidden>
ha scritto:
> @Christopher:
>
>> + Could you please obtain a backtrace by following the
>> instructions on https://wiki.ubuntu.com/MozillaTeam/Bugs?
>
> Correct me if I am wrong: those instructions are for getting a backtrace
> when Firefox crashes. In this case Firefox does not crash, only the
> flash pugin crashes. Will those steps be useful in this case as well?
>
>> + Could you please provide step-by-step instructions that lead to the
> crash?
>
> I haven't found a sequence of steps that systematically triggers the
> crash 100% of the times. However any of the following will ALMOST always
> make the plugin crash:
>
> A) 1. open www.youtube.com
> 2. add some videos to the queue
> 3. play the queue
> 4. wait for the first video to finish (or skip to near to the end)
> => when the following video loads, the plugin will probably crash
>
> or
>
> B) 1. open www.youtube.com and play any video
> 2. switch to fullscreen mode
> 3. exit fullscreen mode
> => crash
>
> The latter seems to happen especially if you exit fullscreen when the
> video is buffering, but this may be only my impression
>
>
> I attach the about:plugin page as you asked
>
> ** Attachment added: "aboutplugins.odt"
>
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/728778/+attachment/1900931/+files/aboutplugins.odt
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/728778
>
> Title:
> adobe flash player plugin always crashes on youtube
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/728778/+subscribe

No, I have expirienced quite a few crashes today.

Note also, that if it stops crashing at Youtube without updating the plugin, it only means that Youtube has removed on its side the code that is triggering the issue, but that does not fix the issue: the plugin has a bug that makes it crash under some circumstances (it does not matter whether it takes buggy actionscript code to make the plugin crash: the plugin must never crash whether or not the content being played is buggy)

Youtube has all the interest in having its site work whether or not adobe fixes the plugin, so it is likely that they will find a workaround and these crashes will stop; however that won't diminish the need for the plugin's own bugs to be fixed.

matteo sisti sette, I got the impression both the player and the browser crashed. Please disregard the backtrace request for Firefox. I'll tic the Status back to New but it may be closed as Invalid due to it being a content/plugin issue, not a browser issue.

A search for a Linux Flash debug package produced a debug package from Adobe's website:

http://www.adobe.com/support/flashplayer/downloads.html

This was not found in Launchpad so it may help if a new package request was made for it via:
https://wiki.ubuntu.com/UbuntuDevelopment/NewPackages

I am still having them.

--- On Fri, 3/11/11, Jacopo Moronato <email address hidden> wrote:

From: Jacopo Moronato <email address hidden>
Subject: Re: [Bug 728778] Re: adobe flash player plugin always crashes on youtube
To: <email address hidden>
Date: Friday, March 11, 2011, 9:20 AM

Since yesterday I'm not experiencing these crashes anymore. Is this the same
for you ?
Il giorno 11/mar/2011 13.52, "matteo sisti sette" <email address hidden>
ha scritto:
> @Christopher:
>
>> + Could you please obtain a backtrace by following the
>> instructions on https://wiki.ubuntu.com/MozillaTeam/Bugs?
>
> Correct me if I am wrong: those instructions are for getting a backtrace
> when Firefox crashes. In this case Firefox does not crash, only the
> flash pugin crashes. Will those steps be useful in this case as well?
>
>> + Could you please provide step-by-step instructions that lead to the
> crash?
>
> I haven't found a sequence of steps that systematically triggers the
> crash 100% of the times. However any of the following will ALMOST always
> make the plugin crash:
>
> A) 1. open www.youtube.com
> 2. add some videos to the queue
> 3. play the queue
> 4. wait for the first video to finish (or skip to near to the end)
> => when the following video loads, the plugin will probably crash
>
> or
>
> B) 1. open www.youtube.com and play any video
> 2. switch to fullscreen mode
> 3. exit fullscreen mode
> => crash
>
> The latter seems to happen especially if you exit fullscreen when the
> video is buffering, but this may be only my impression
>
>
> I attach the about:plugin page as you asked
>
> ** Attachment added: "aboutplugins.odt"
>
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/728778/+attachment/1900931/+files/aboutplugins.odt
>
> --
> You received this bug notification because you are a direct subscriber
> of the bug.
> https://bugs.launchpad.net/bugs/728778
>
> Title:
> adobe flash player plugin always crashes on youtube
>
> To unsubscribe from this bug, go to:
> https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/728778/+subscribe

--
You received this bug notification because you are a direct subscriber
of the bug.
https://bugs.launchpad.net/bugs/728778

Title:
  adobe flash player plugin always crashes on youtube

Status in “firefox” package in Ubuntu:
  Incomplete
Status in “flashplugin-nonfree” package in Ubuntu:
  New

Bug description:
  Binary package hint: firefox

  Flash player crashes very often, especially watching videos on
  Youtube. It's almost impossible to watch a video without having it
  crash a couple of times.

  Switching full screen mode on and off, reloading a video, and video
  buffering, seem to be a few things that increase the probability of
  crashing.

  Additionally, the "send crash report" option almost always fails.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: firefox 3.6.13+build3+nobinonly-0ubuntu0.10.04.1
  ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
  Uname: Linux 2.6.32-28-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Fri Mar  4 00:35:21 2011
  FirefoxPackages:
   firefox 3.6.13+build3+nobinonly-0ubuntu0.10.04.1
   firefox...

Thanks for the quick reply.
The problem persists.
I will create a video to show the problem
I hope on Monday put the video online may be

Am Freitag, den 11.03.2011, 15:41 +0000 schrieb Christopher M. Penalver:

> matteo sisti sette, I got the impression both the player and the browser
> crashed. Please disregard the backtrace request for Firefox. I'll tic
> the Status back to New but it may be closed as Invalid due to it being a
> content/plugin issue, not a browser issue.
>
> A search for a Linux Flash debug package produced a debug package from
> Adobe's website:
>
> http://www.adobe.com/support/flashplayer/downloads.html
>
> This was not found in Launchpad so it may help if a new package request was made for it via:
> https://wiki.ubuntu.com/UbuntuDevelopment/NewPackages
>
> ** Changed in: firefox (Ubuntu)
> Status: Incomplete => New
>

Here's the dmesg when flash crashes:

[14847.547981] yama_ptrace_access_check: 4 callbacks suppressed
[14847.547985] ptrace of non-child pid 8015 was attempted by: firefox-bin (pid 2819)
[14847.547989] ptrace of non-child pid 8016 was attempted by: firefox-bin (pid 2819)
[14847.547993] ptrace of non-child pid 8024 was attempted by: firefox-bin (pid 2819)
[14847.547996] ptrace of non-child pid 8025 was attempted by: firefox-bin (pid 2819)
[14847.547999] ptrace of non-child pid 8026 was attempted by: firefox-bin (pid 2819)
[14847.548002] ptrace of non-child pid 8027 was attempted by: firefox-bin (pid 2819)

hope it helps.

here's my firefox debug in youtube:

my FF: if i try to view a video, the first one, works normally, shows a weird pink video window at the second try, the third crashes flash

dario@dario-Inspiron-1018:~$ firefox --debug
/usr/lib/firefox-3.6.15/run-mozilla.sh -g /usr/lib/firefox-3.6.15/firefox-bin
MOZILLA_FIVE_HOME=/usr/lib/firefox-3.6.15
  LD_LIBRARY_PATH=/usr/lib/firefox-3.6.15:/usr/lib/firefox-3.6.15/plugins:/usr/lib/firefox-3.6.15
DISPLAY=:0.0
DYLD_LIBRARY_PATH=/usr/lib/firefox-3.6.15:/usr/lib/firefox-3.6.15
     LIBRARY_PATH=/usr/lib/firefox-3.6.15:/usr/lib/firefox-3.6.15/components:/usr/lib/firefox-3.6.15
       SHLIB_PATH=/usr/lib/firefox-3.6.15:/usr/lib/firefox-3.6.15
          LIBPATH=/usr/lib/firefox-3.6.15:/usr/lib/firefox-3.6.15
       ADDON_PATH=/usr/lib/firefox-3.6.15
      MOZ_PROGRAM=/usr/lib/firefox-3.6.15/firefox-bin
      MOZ_TOOLKIT=
        moz_debug=1
     moz_debugger=
/usr/bin/gdb /usr/lib/firefox-3.6.15/firefox-bin -x /tmp/mozargs.h1G2Xl
GNU gdb (GDB) 7.2-ubuntu
Copyright (C) 2010 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 "i686-linux-gnu".
Para las instrucciones de informe de errores, vea:
<http://www.gnu.org/software/gdb/bugs/>...
Leyendo símbolos desde /usr/lib/firefox-3.6.15/firefox-bin...(no se encontraron símbolos de depuración)hecho.
(gdb) run
Starting program: /usr/lib/firefox-3.6.15/firefox-bin
[Depuración de hilo usando libthread_db enabled]
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[T...

@matteo
@all others affected

Can you guys reproduce the crash using the procedure defined in https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/728778/comments/7

ie, can you make it crash by using the playlist, which in my case crashes *every time* when going to the next video while the tab is not selected?

@wild_oscar

Ubuntu 10.10
Arch : i686
Firefox: 3.6.15
Flash: Shockwave Flash 10.2 r152 (packages flashplugin-installer, flashplugin-nonfree, flashplugin-nonfree-extrasound)

Flash plugin crashes for me.

It seems a bit random, this time it didn't crash.

Yes, I can reproduce using the steps in #7. However, I can also reproduce it 100% when I'm using the movie picker in the top of the screen.

Steps to reproduce I use (different from #7, but probably the same youtube code is executed):
1. Open any movie, for example: http://www.youtube.com/watch?v=WiJczH3cr48
2. Click on the dropdown next to the name of the uploader to show thumbnails of other videos uploaded
3. Click on any video in that list.
4. The page reloads and Flash crashes.

I have uploaded the terminal output and steps to reproduce (in screenshot form).

I confirm Eer's method also crashes the plugin in #21

Eer method Confirmed, crashes the plugin in #21

Hey, it seems that the bug is no longer present. Can you guys test Eer's method so we can close it if appropriate?

Yes, I can confirm. It works again.

The crash continue to occur for me.

Le 24/03/2011 16:48, wild_oscar a écrit :
> Hey, it seems that the bug is no longer present. Can you guys test Eer's
> method so we can close it if appropriate?
>

As per comment #22 this issue is caused by Flash Player and does not crash Firefox. Marking Invalid.

matteo sisti sette, 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. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks in advance.

[Expired for flashplugin-nonfree (Ubuntu) because there has been no activity for 60 days.]

Ubuntu 12.04
flash plugin provided over flashplugin-installer 11.2.202.262ubuntu0.12.10.1
firefox 18.0.2+build1-0ubuntu0.12.10.1
3.5.0-24-generic #37-Ubuntu SMP Thu Feb 7 01:50:30 UTC 2013 x86_64

I confirm the described behavior having exactly the same symptoms, however i'm not sure since when, but i suspect it appears to be true for me since latest flash plugin update. Logs keep silence and i don't know if it is possible to gather additional technical details if they exist and required. Also i'm in doubt if i post my observation on right place because i've found plenty of reported cases that describe similar issue.

Status changed to 'Confirmed' because the bug affects multiple users.

matteo sisti sette, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal, as it will automatically gather and attach updated debug information to this report:

apport-collect 728778

[Expired for flashplugin-nonfree (Ubuntu) because there has been no activity for 60 days.]