[mythtv] Backtrace for SEGV while editing recording

Neale Swinnerton mythtv-dev.spam at isismanor.com
Wed Apr 27 23:57:17 UTC 2005


Isaac Richards wrote:
> Actually, please get this back into GDB and do a:
>
> print m_displaypos
> print m_imagesize
>

Bit more data, I'd set a cut from the beginning of the program to about
3 minutes in (ie. the junk before the show starts). I then set a cut
point at the start of the first commercial break, it crashes when I step
forward 1 minute from there.

Here's the gdb info you wanted (i'm guessing that m_displaypos.yp is the
problem :-) )


Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1260071856 (LWP 11865)]
0x402a4db7 in OSDTypeImage::Draw (this=0x89981b0, surface=0x8c0c218,
fade=-1,
    maxfade=-1, xoff=0, yoff=0) at osdtypes.cpp:982
982     osdtypes.cpp: No such file or directory.
        in osdtypes.cpp
(gdb) bt full
#0  0x402a4db7 in OSDTypeImage::Draw (this=0x89981b0, surface=0x8c0c218,
fade=-1,
    maxfade=-1, xoff=0, yoff=0) at osdtypes.cpp:982
        x = 0
        y = -2147483067
        dest = (unsigned char *) 0x41822b14 "Ì4\v"
        destalpha = (unsigned char *) 0x4a947218 <Address 0x4a947218 out
of bounds>
        src = (unsigned char *) 0x829daec "ü\005!\bü\005!\b)\001"
        srcalpha = (
    unsigned char *) 0x4b1b21f0
"ü\005!\bø\005!\b\b\"\033\001(Æf@¸à\226\b°+\033Kx\"\033K2\213)@x@{\b\030ÂÀ\b\001"
        udest = (
    unsigned char *) 0x402a98ff
"\211Â\213\006;\002\017\225À\017¶À\203Ä\020[^]ÃU\211åVS\203ì\020èñaùÿ\201Ã\t-<"
        vdest = (
    unsigned char *) 0x4b1b21c8
"\b\"\033Kø\027*@°\201\231\b\030ÂÀ\bÿÿÿÿÿÿÿÿ"
        usrc = (unsigned char *) 0x4066c628 "\220gd"
        vsrc = (
    unsigned char *) 0x4b1b21f0
"ü\005!\bø\005!\b\b\"\033\001(Æf@¸à\226\b°+\033Kx\"\033K2\213)@x@{\b\030ÂÀ\b\001"
        alpha = 0
        iwidth = 18
        drawwidth = 18
        drawheight = 28
        ystart = 0
        xstart = 0
        startline = -2147483648
        startcol = 0
        destRect = {x1 = 0, y1 = 0, x2 = 17, y2 = 27}
        needblend = false
        ysrcwidth = 10458
        ydestwidth = 418320
        uvsrcwidth = 144492508
        uvdestwidth = 1096151784
        alphamod = 255
        startingx = 0
#1  0x402a17f8 in OSDSet::Draw (this=0x87b4078, surface=0x8c0c218,
actuallydraw=true)
    at osdtypes.cpp:370
        type = (class OSDType *) 0x89981b0
        i = {<std::iterator<std::random_access_iterator_tag, OSDType*,
int, OSDType**, OSDType*&>> = {<No data fields>}, _M_current = 0x82105f8}
#2  0x40298b32 in OSD::Display (this=0x8262fd0) at osd.cpp:2013
        timedisp = (class OSDTypeText *) 0x0
        container = (class OSDSet *) 0x87b4078
        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 = 0x8203d0c}
#3  0x403c5316 in VideoOutput::DisplayOSD (this=0x8b794e8, frame=0x8a2f088,
    osd=0x8262fd0, stride=-1, revision=-1) at videooutbase.cpp:967
        surface = (OSDSurface *) 0x8071065
        retval = -1
#4  0x404c17d2 in VideoOutputXv::ProcessFrameMem (this=0x8b794e8,
frame=0x8a2f088,
    osd=0x8262fd0, filterList=0x0, pipPlayer=0x0) at videoout_xv.cpp:2280
        deint_proc = true
        pauseframe = true
#5  0x404c19e9 in VideoOutputXv::ProcessFrame (this=0x8b794e8, frame=0x0,
    osd=0x8262fd0, filterList=0x0, pipPlayer=0x0) at videoout_xv.cpp:2302
No locals.
#6  0x4027820f in NuppelVideoPlayer::DisplayPauseFrame (this=0x896e0b8)
---Type <return> to continue, or q <return> to quit---
    at NuppelVideoPlayer.cpp:1573
No locals.
#7  0x40278db9 in NuppelVideoPlayer::OutputVideoLoop (this=0x896e0b8)
    at NuppelVideoPlayer.cpp:1713
        temp_speed = 1
        fr_int = 40000
#8  0x4027907a in NuppelVideoPlayer::kickoffOutputVideoLoop
(player=0x896e0b8)
    at NuppelVideoPlayer.cpp:1780
        nvp = (NuppelVideoPlayer *) 0x896e0b8
#9  0x41a02bef in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#10 0x41c6be7a in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb) print m_displaypos
$1 = {xp = 0, yp = -2147483648}
(gdb) print m_imagesize
$2 = {x1 = 0, y1 = 0, x2 = 17, y2 = 27}


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