[mythtv-users] Frontend crash after editing cut points.

[John Drescher]

On Mon, Feb 20, 2012 at 7:52 PM, Michael T. Dean
<mtdean at thirdcontact.com> wrote:
> On 02/20/2012 06:13 PM, Michael T. Dean wrote:
>> On 02/18/2012 08:38 PM, John Drescher wrote:
>>> john at jmd0 /auto/portage/local/layman/jmd-gentoo/app-emulation/wine $
>>> mythfrontend --version
>>> Please attach all output as a file in bug reports.
>>> MythTV Version   : v0.24.2-14-g9743d9c-dirty
>>> MythTV Branch    : branch-fixes/0.24
>>> Network Protocol : 63
>>> Library API      : 0.24.20110505-1
>>> QT Version       : 4.8.0
>>> Options compiled in:
>>>    linux debug using_alsa using_oss using_backend using_bindings_perl
>>> using_bindings_python using_dvb using_frontend using_hdpvr using_ivtv
>>> using_mheg using_opengl_video using_opengl_vsync using_qtdbus
>>> using_qtwebkit using_v4l using_x11 using_xrandr using_xv using_xvmc
>>> using_xvmc_vld using_xvmcw using_bindings_perl using_bindings_python
>>> using_mythtranscode using_opengl using_vdpau using_ffmpeg_threads
>>> using_mheg
>>>
>>>
>>> I get the following crash most times I exit from editing cutpoints in mythtv.
>>>
>>> 2012-02-18 20:34:39.463 TV: OSDDialogEvent: result 1 text Cut to End
>>> action DIALOG_CUTPOINT_CUTTOEND_104793
>>> 2012-02-18 20:34:40.920 TV: OSDDialogEvent: result 0 text Save Cut
>>> List and Exit action DIALOG_CUTPOINT_SAVEEXIT_0
>>> 2012-02-18 20:34:41.289 Marking recording as watched using offset 8 minutes
>>> 2012-02-18 20:34:41.289 TV: Attempting to change from
>>> WatchingPreRecorded to None
>>> 2012-02-18 20:34:41.295 VDPAU Painter: Clearing VDPAU painter cache.
>>> 2012-02-18 20:34:41.307 MythPainter: 24 images not yet de-allocated.
>>> 2012-02-18 20:34:41.404 TV: Changing from WatchingPreRecorded to None
>>> 2012-02-18 20:34:41.404 ScreenSaverX11Private: DPMS Reactivated 1
>>> ASSERT failure in QCoreApplication::sendEvent: "Cannot send events to
>>> objects owned by a different thread. Current thread 2683690. Receiver
>>> '' (of type 'PreviewGenerator') was created in thread 7fd32827d6d0",
>>> file kernel/qcoreapplication.cpp, line 469
>> Contrary to popular belief, MythTV doesn't actually log an error message
>> before it dies when it dies unexpectedly (doing so is actually
>> impossible).
>
> Hehe, but in this case, MythTV isn't dying unexpectedly.  Instead, Qt is
> killing mythfrontend, so Qt actually logs an error before it kills
> mythfrontend.  That said, to get useful information about where in
> mythfrontend it's dying, we still need:
>
>> This
>> involves getting a "debug-enabled" backtrace, as at:
>>
>> http://www.mythtv.org/wiki/Debugging
>
> However, in this case, I'm going to guess it's
> http://code.mythtv.org/trac/ticket/9819 .  Note, also, that the patches
> there are all broken.
>
Thanks. I will look at this later in the week. Possibly weekend. I am
a windows Qt programmer on the day job so I may be able to figure this
out..

John