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Re: Grave bug when playing flash videos




Le 12/06/2017 à 11:00, Darac Marjal a écrit :
> On Sun, Jun 11, 2017 at 10:50:17PM +0200, Pétùr wrote:
>> I have a serious bug when using flashplayer in debian sid.
>>
>> This bug freezes everything and I have to do a hard reboot. It happens
>> with flashplugin and pepperflash when I play a video with flash (both
>> tested with firefox and chromium). Today I am using pepperflash,
>> installed by the package browser-plugin-freshplayer-pepperflash.
>>
>> The bug could occur after playing 2s or 2h. When I play a flash video, I
>> have ~50% chances to be affected.
> 
> Have you tried switching to a VT and back when this happens? There was a
> bug in... I *think* it was something like opengl ... recently, whereby a
> bunch of unrelated programs (chrome/chromium included) could freeze the
> display. Switching away from X and back caused the display to refresh
> and things would work again (for a time).

Yes I tried to switch to TTY1 with Ctrl+Alt+F1 or to kill X server. The
freeze is global and nothing works at all except a hard, electrical, reboot.

>> In /var/log/daemon.log I have some inconsistencies at 21:25:28
>> represented by:
>>
>> ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@...
> 
> This is less's representation of null characters and is an artefact of
> journaling file systems. Syslog has told the file system "I'm about to
> write X bytes to /var/log/daemon.log" and then, at some point during the
> writing of that, you've killed the power. During either fsck or mount
> (depending on the file system), the journal is replayed - that is, there
> is a log saying "X bytes were being writen to /var/log/daemon.log". Now,
> most of those bytes never made it to the disk, but the record is still
> there. So the file grows by X bytes of nothing. Now the file system is
> consistent (the metadate, at least, the idea being that it's better to
> have SOME of the file still there, rather than a broken filesystem)

Thanks for the explanation.