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i-rinat / freshplayerplugin

ppapi2npapi compatibility layer
MIT License
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Crash in Firefox 46.0.1 with libpepflashplayer 21.0.0.242 #334

Closed booti386 closed 6 years ago

booti386 commented 8 years ago

It just sadly crashes.

i-rinat commented 8 years ago

That's sad.

But without details I can't do anything about it. I've just checked 21.0.0.242 on a test page with freshwrapper from master branch in Firefox 46.0.1 and it works fine. It could be a particular swf causes it, or a particular set of other conditions.

booti386 commented 8 years ago

I only have useless backtraces, and I'm not able to reproduce it on other computers, so I guess probably stupidness somewhere in an obscure library :/

i-rinat commented 8 years ago

What am I supposed to do with the report?

booti386 commented 8 years ago

I don't really know... :/ You can probably archive it, for now... :/

booti386 commented 8 years ago

Ok, so it happens only when 3D is enabled (enable_3d=1) :/

kuboosoft commented 8 years ago

I use Fedora 24 with Firefox 46.0.1, and no detect the plugin; what information you need? I can help.

grizzler0031 commented 8 years ago

This looks like the same type of error, also with 21.0.0.242 and Firefox 46.0.1:

[2359] WARNING: pipe error (103): Verbinding is weggevallen: file /builds/slave/m-rel-l64-00000000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 459

That's "Connection was lost" in the first line. This is when visiting the page http://www.dumpert.nl/mediabase/6794585/fcc9ffe8/charge_.html

On some other pages this error is repeated every couple of seconds and the video sort of runs.

System is Debian Testing Xfce 64-bit on an ASUS H81M-E board (Intel Core i5-4430) with 8GB RAM.

Edit Never mind. This seems to be something else. I noticed the older version of the flash player still showed on the plugin page, so I quit Firefox, removed pluginreg.dat and restarted the browser. Now the plugin doesn't show up at all and pluginreg.dat has:

[INVALID] /usr/lib/mozilla/plugins/libfreshwrapper-flashplayer.so:$ 1460525821000:$

No idea what's going on now... :(

i-rinat commented 8 years ago

Are there any .txt files in /tmp directory? There should be backtraces of crashed processes, if you have gdb installed on your machine. (Freshplayerplugin tries to collect backtrace of itself, if crashes).

grizzler0031 commented 8 years ago

Nope, nothing. I didn't have gdb installed, installed it and went through the whole thing again. Same result. I even removed the other plugins to make sure they weren't interfering. Same result again.

i-rinat commented 8 years ago

http://www.dumpert.nl/mediabase/6794585/fcc9ffe8/charge_.html

Looks like site blocks requests from Russia (why?), but through a proxy it works fine. Program crashes often happen in a different way depending on a particular computer. So absence of crashes on my machine doesn't actually prove anything. Just the fact I can't reproduce it on my machine for debugging. (Which is sad, since I can't fix it if I don't know what's failing).

pluginreg.dat

It's safe to delete that file, Firefox will try all available plugins and create that file again. I think, you'll need to restart Firefox to make it check plugins.

grizzler0031 commented 8 years ago

No idea why that site would be blocking anyone. Are you sure it's happening at their end? They're linked to people who like to be as politically incorrect as possible and annoy a lot of people all over the world. If any blocking would occur, I would expect it to be abroad rather than here.

Anyway, I've reinstalled a number of items on my system and things appear to be working correctly again, at least for now. So I suppose this was just "one of those things". Thanks for you efforts anyway.

i-rinat commented 8 years ago

Are you sure it's happening at their end?

When I try to open the link, I get redirect to http://kudtkoekiewet.nl/?t=http://www.dumpert.nl/mediabase/6794585/fcc9ffe8/charge_.html, which takes couple of minutes to load, and shows me this:

2016-06-06-231650

grizzler0031 commented 8 years ago

Weird. That site CloudFlare claims is offline has to do with the stupid cookie laws in the EU, but it's actually working fine from here. CloudFlare misconfiguration? No idea, I'm afraid.

i-rinat commented 8 years ago

@kuboosoft, what did you mean by "no detect the plugin"? Sometimes Firefox fails to load a particular plugin (freshplayerplugin, for example) and caches that information in pluginreg.dat file in browser profile directory. That way it doesn't waste time for checking when you launch the browser.

pluginreg.dat file can be deleted safely. When you start Firefox next time, it will try all available plugins and recreate pluginreg.dat file.

i-rinat commented 8 years ago

BTW, @booti386, did you try to build freshwrapper from sources? I've seen some repositories build freshplayerplugin with GTK+ 3 enabled, which is a time bomb. It works on some machines, but fails on others, without clean reason.

booti386 commented 7 years ago

Yes, I build it from sources. I patched it to use gl function pointers (glXGetProcAdress) instead of relying on globally exported functions, and it worked. So there are (were) probably wrong redirections in my Mesa build.

i-rinat commented 6 years ago

I'm not sure how can I fix it. And whenever I should. I think, code uses only those symbols, that are guaranteed to be available. Others are requested by glXGetProcAddress().