[mythtv] Backtrace for SEGV while editing recording

[Neale Swinnerton]

Thought I'd add to this that I've been trying to track down a problem
with a recording on the User list ( see
http://www.gossamer-threads.com/lists/mythtv/users/127287 ), and the
opinions there are that I might be getting signal dropouts on the
channel that this recording was made on. Maybe the recorded stream is
corrupt....

Neale.

Neale Swinnerton wrote:
> How's this?
> 
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 1224739760 (LWP 22077)]
> 0x41c1d7da in memcpy () from /lib/tls/libc.so.6
> (gdb) bt full
> #0  0x41c1d7da in memcpy () from /lib/tls/libc.so.6
> No symbol table info available.
> #1  0x402a4d7d in OSDTypeImage::Draw (this=0x48705de0,
> surface=0x8d8fb88, fade=-1, maxfade=-1, xoff=0, yoff=0)
>     at osdtypes.cpp:972
>         y = -2147483648
>         dest = (unsigned char *) 0x41822b14 "Ì4\v"
>         destalpha = (unsigned char *) 0x48700520 "PdpH"
>         src = (unsigned char *) 0x48705d24 "Ì\003!\bÌ\003!\b\025"
>         srcalpha = (unsigned char *) 0x490001f0 "Ì\003!\bÈ\003!\b\b\002"
>         udest = (
>     unsigned char *) 0x402a98ff
> "\211Â\213\006;\002\017\225À\017¶À\203Ä\020[^]ÃU\211åVS\203ì\020èñaùÿ\201Ã\t-<"
>         vdest = (unsigned char *) 0x490001c8 "\b\002"
>         usrc = (unsigned char *) 0x4066c628 "\220gd"
>         vsrc = (unsigned char *) 0x490001f0 "Ì\003!\bÈ\003!\b\b\002"
>         alpha = 1076537321
>         iwidth = 14
>         drawwidth = 14
>         drawheight = 30
>         ystart = 0
>         xstart = 0
>         startline = -2147483648
>         startcol = 2147483646
>         destRect = {x1 = 0, y1 = 0, x2 = 13, y2 = 29}
>         needblend = false
>         ysrcwidth = 0
>         ydestwidth = 0
>         uvsrcwidth = 1215324828
>         uvdestwidth = 1096151720
>         alphamod = 255
>         startingx = 1224737216
> #2  0x402a17f8 in OSDSet::Draw (this=0x48705c60, surface=0x8d8fb88,
> actuallydraw=true) at osdtypes.cpp:370
>         type = (class OSDType *) 0x48705de0
>         i = {<std::iterator<std::random_access_iterator_tag, OSDType*,
> int, OSDType**, OSDType*&>> = {<No data fields>}, _M_current = 0x82103c8}
> #3  0x40298b32 in OSD::Display (this=0x8989de8) at osd.cpp:2013
>         timedisp = (class OSDTypeText *) 0x0
>         container = (class OSDSet *) 0x48705c60
>         anytodisplay = true
>         actuallydraw = true
>         removeList = {<std::_Vector_base<OSDSet*,
> std::allocator<OSDSet*> >> = {<std::_Vector_alloc_base<OSDSet*,
> std::allocator<OSDSet*>, true>> = {_M_start = 0x0, _M_finish = 0x0,
>       _M_end_of_storage = 0x0}, <No data fields>}, <No data fields>}
>         i = {<std::iterator<std::random_access_iterator_tag, OSDSet*,
> int, OSDSet**, OSDSet*&>> = {<No data fields>}, _M_current = 0x8203bc0}
> #4  0x403c5316 in VideoOutput::DisplayOSD (this=0x87e2128,
> frame=0x8988110, osd=0x8989de8, stride=-1, revision=-1)
>     at videooutbase.cpp:967
>         surface = (OSDSurface *) 0x8071065
>         retval = -1
> #5  0x404c17d2 in VideoOutputXv::ProcessFrameMem (this=0x87e2128,
> frame=0x8988110, osd=0x8989de8, filterList=0x0,
>     pipPlayer=0x0) at videoout_xv.cpp:2280
>         deint_proc = true
>         pauseframe = true
> #6  0x404c19e9 in VideoOutputXv::ProcessFrame (this=0x87e2128,
> frame=0x0, osd=0x8989de8, filterList=0x0,
>     pipPlayer=0x0) at videoout_xv.cpp:2302
> No locals.
> #7  0x4027820f in NuppelVideoPlayer::DisplayPauseFrame (this=0x87995b0)
> at NuppelVideoPlayer.cpp:1573
> No locals.
> #8  0x40278db9 in NuppelVideoPlayer::OutputVideoLoop (this=0x87995b0) at
> NuppelVideoPlayer.cpp:1713
>         temp_speed = 1
>         fr_int = 40000
> ---Type <return> to continue, or q <return> to quit---
> #9  0x4027907a in NuppelVideoPlayer::kickoffOutputVideoLoop
> (player=0x87995b0) at NuppelVideoPlayer.cpp:1780
>         nvp = (NuppelVideoPlayer *) 0x87995b0
> #10 0x41a02bef in start_thread () from /lib/tls/libpthread.so.0
> No symbol table info available.
> #11 0x41c6be7a in clone () from /lib/tls/libc.so.6
> No symbol table info available.
> 
> 
> 
> 
> Isaac Richards wrote:
> 
>>On Sunday 24 April 2005 07:06 pm, Neale Swinnerton wrote:
>>
>>
>>>Hi,
>>>
>>>When I'm editing a particular recording I get a SEGV with the backtrace
>>>shown below....It always happens at around the same point in the
>>>recording, and It seems to only be this recording, so maybe the
>>>recording has some corruption? This is with a CVS from around 00:00GMT
>>>24/04/05. Let me know if I can collect any more useful information,
>>
>>
>>A 'bt full' would provide a little more info.  I need to see the variables 
>>being used in that memcpy that's it's dying on.
>>
>>Isaac
>>_______________________________________________
>>mythtv-dev mailing list
>>mythtv-dev at mythtv.org
>>http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev
>>
> 
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