ubuntu@ubuntu:~$ gdb
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(gdb) file ide
Reading symbols from /home/ubuntu/ide...done.
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) r
Starting program: /home/ubuntu/ide
[Thread debugging using libthread_db enabled]
[New Thread 805457936 (LWP 24256)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 805457936 (LWP 24256)]
0x102dfbc0 in PixelSet (image=@0x7fe1876c, dest=<value optimized out>, color=
      {<AssignValueTypeNo<Color,39u,Moveable<Color, EmptyClass> >> = {<Moveable<Color,EmptyClass>> =  {<EmptyClass> = {<No data fields>}, <No data fields>}, <No data fields>}, color = 2145486332})
    at /home/ubuntu/uppsrc/Draw/PixelArray.cpp:1662
1662                    memcpy(d, temp, 12);
(gdb) bt
#0  0x102dfbc0 in PixelSet (image=@0x7fe1876c, dest=<value optimized out>, color=
      {<AssignValueTypeNo<Color,39u,Moveable<Color, EmptyClass> >> = {<Moveable<Color,EmptyClass>> =  {<EmptyClass> = {<No data fields>}, <No data fields>}, <No data fields>}, color = 2145486332})
    at /home/ubuntu/uppsrc/Draw/PixelArray.cpp:1662
#1  0x102dff5c in AlphaSet (dest=@0x7fe18768, drect=@0x7fe18640, color=Cannot access memory at addre ss 0x0
)
    at /home/ubuntu/uppsrc/Draw/PixelArray.cpp:1903
#2  0x102fd928 in Image::Data::Prepare (this=0x3002dc00, imb=@0x7fe18768)
    at /home/ubuntu/uppsrc/Draw/Image.cpp:541
#3  0x102fed78 in Image::Data::Instantiate (this=0x3002dc00, force_data=true)
    at /home/ubuntu/uppsrc/Draw/Image.cpp:565
#4  0x10301d74 in Image::PaintImage (this=<value optimized out>, draw=@0x7fe18fd4,
    src=@0x7fe188d8, dest=@0x7fe18908, fx=0) at /home/ubuntu/uppsrc/Draw/Image.cpp:735
#5  0x102d0c18 in Draw::DrawImageOp (this=0xd000000, rect=@0x0, img=@0x0, src=@0x0, fx=0)
    at /home/ubuntu/uppsrc/Draw/Draw.cpp:39
#6  0x102d0988 in Draw::DrawImage (this=0x0, rect=@0x7fe18588, img=@0x0, src=@0x0, fx=0)
    at Draw.h:619
#7  0x102d1bdc in Draw::DrawImage (this=0x7fe18fd4, rect=@0x7fe18908, img=@0x105ef400, fx=0)
    at /home/ubuntu/uppsrc/Draw/Draw.cpp:57
#8  0x102d1c28 in Draw::DrawImage (this=0x7fe18fd4, x=<value optimized out>,
    y=<value optimized out>, cx=<value optimized out>, cy=<value optimized out>, img=@0x105ef400,
    fx=0) at /home/ubuntu/uppsrc/Draw/Draw.cpp:62
#9  0x102d1c8c in Draw::DrawImage (this=0x7fe18fd4, x=0, y=-109051893, img=@0x105ef400, fx=0)
    at /home/ubuntu/uppsrc/Draw/Draw.cpp:68
---Type <return> to continue, or q <return> to quit---
#10 0x10144ba0 in Option::Paint (this=0x7fe19750, w=@0x7fe18fd4)
    at /home/ubuntu/uppsrc/CtrlLib/Button.cpp:405
#11 0x1036f22c in Ctrl::CtrlPaint (this=0x7fe19750, pw=@0x7fe18fd4, pr=@0x7fe18c40)
    at /home/ubuntu/uppsrc/CtrlCore/CtrlDraw.cpp:284
#12 0x1036f39c in Ctrl::DoCtrlPaint (this=<value optimized out>, w=0x7fe18fd4, q=0x7fe19750,
    pr=@0x7fe18cf8) at /home/ubuntu/uppsrc/CtrlCore/CtrlDraw.cpp:178
#13 0x1036f280 in Ctrl::CtrlPaint (this=0x7fe19678, pw=@0x7fe18fd4, pr=@0x7fe18f64)
    at /home/ubuntu/uppsrc/CtrlCore/CtrlDraw.cpp:293
#14 0x1036fe14 in Ctrl::UpdateArea (this=0x7fe19678, draw=@0x7fe190d8, paintrect=@0x7fe190c8)
    at /home/ubuntu/uppsrc/CtrlCore/CtrlDraw.cpp:373
#15 0x1037a514 in Ctrl::DoPaint (this=0x7fe19678, invalid=@0x3003c748)
    at /home/ubuntu/uppsrc/CtrlCore/X11Wnd.cpp:82
#16 0x1037a794 in Ctrl::TimerAndPaint () at /home/ubuntu/uppsrc/CtrlCore/X11Wnd.cpp:214
#17 0x1037a8f8 in Ctrl::EventLoop (ctrl=0x7fe19678) at /home/ubuntu/uppsrc/CtrlCore/X11Wnd.cpp:291
#18 0x10377564 in TopWindow::Run (this=0x7fe19678, appmodal=true)
    at /home/ubuntu/uppsrc/CtrlCore/TopWindow.cpp:273
#19 0x10058aec in Install () at /home/ubuntu/uppsrc/ide/Install.cpp:251
#20 0x1006aa10 in GuiMainFn_ () at /home/ubuntu/uppsrc/ide/idewin.cpp:536
#21 0x1006aa10 in GuiMainFn_ () at /home/ubuntu/uppsrc/ide/idewin.cpp:536
#22 0x1006aa10 in GuiMainFn_ () at /home/ubuntu/uppsrc/ide/idewin.cpp:536
#23 0x1006aa10 in GuiMainFn_ () at /home/ubuntu/uppsrc/ide/idewin.cpp:536
#24 0x1006aa10 in GuiMainFn_ () at /home/ubuntu/uppsrc/ide/idewin.cpp:536
Previous frame inner to this frame (corrupt stack?)
(gdb)