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[Bryce Harrington <731424@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "gdb-Xorg.txt"
   https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/731424/+attachment/2110802/+files/gdb-Xorg.txt

** Description changed:

  I am on Ubuntu 10.10 with the default X server, and the following Python
  code crashes it every time:
  
  from Tkinter import *
  f=Frame()
  f.option_add('*font', "-family {DejaVu Sans} -size -25 -weight normal -slant roman -underline 0 -overstrike 0")
  f.pack()
  text = StringVar(f)
  entry = Entry(f, textvariable=text)
  entry.pack()
  text.set("a" * 600)
  f.mainloop()
  
  Unfortunately, I was not able to capture a backtrace with apport.  I'm
  using an Asus X58Lseries laptop which I believe is 1280 x 800 (WXGA)
  using an Intel GMA X3100 graphics chipset.  I have set System >
  Preferences > Appearance > Fonts > Details > Resolution to 160 DPI for a
  larger display.
  
- Backtrace:
- [ 30015.409] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80eaa9b]
- [ 30015.409] 1: /usr/bin/X (0x8048000+0x5faa8) [0x80a7aa8]
- [ 30015.409] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0x4c140c]
- [ 30015.409] 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x8e4000+0x1e98a) [0x90298a]
- [ 30015.409] 4: /usr/lib/xorg/modules/drivers/intel_drv.so (0x8e4000+0x28700) [0x90c700]
- [ 30015.409] 5: /usr/bin/X (0x8048000+0xdff88) [0x8127f88]
- [ 30015.409] 6: /usr/bin/X (CompositeGlyphs+0xb0) [0x81c4e40]
- [ 30015.409] 7: /usr/bin/X (0x8048000+0xd9373) [0x8121373]
- [ 30015.409] 8: /usr/bin/X (0x8048000+0xd5153) [0x811d153]
- [ 30015.409] 9: /usr/bin/X (0x8048000+0x28127) [0x8070127]
- [ 30015.410] 10: /usr/bin/X (0x8048000+0x1a7ec) [0x80627ec]
- [ 30015.410] 11: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xe7) [0x296e37]
- [ 30015.410] 12: /usr/bin/X (0x8048000+0x1a3e1) [0x80623e1]
- [ 30015.410] Segmentation fault at address 0xc
- [ 30015.410] 
- Caught signal 11 (Segmentation fault). Server aborting
- [ 30015.410]
+ #0  i965_set_picture_surface_state (intel=0x883dcd0, pixmap=0xb7103008, is_dst=1, 
+     picture=<value optimized out>) at ../../src/i965_render.c:1136
+         priv = 0x0
+         ss = <value optimized out>
+         write_domain = <value optimized out>
+         read_domains = <value optimized out>
+         offset = <value optimized out>
+ #1  0x0020fa2a in i965_bind_surfaces (dest=0xb7103008, srcX=320, srcY=48, maskX=0, maskY=0, dstX=0, 
+     dstY=0, w=15, h=14) at ../../src/i965_render.c:1740
+         binding_table = 0x8845f24
+ #2  i965_composite (dest=0xb7103008, srcX=320, srcY=48, maskX=0, maskY=0, dstX=0, dstY=0, w=15, h=14)
+     at ../../src/i965_render.c:1845
+         scrn = 0x8839040
+         intel = 0x883dcd0
+         render_state = <value optimized out>
+         has_mask = 0
+         src_x = {320, 320, 335}
+         src_y = {48, 62, 62}
+         src_w = {8.8028834e-33, 8.80539896e-33, 5.77529779e-33}
+         mask_x = {0, 1.875, 4.48415509e-43}
+         mask_y = {5.73971851e-42, 8.74344453e-33, 1.29830863e-39}
+         mask_w = {-1.50051022, 3.02446732e-39, 0}
+         is_affine = 1
+ #3  0x002197a0 in uxa_glyphs_via_mask (op=3 '\003', pSrc=0xa3398f8, pDst=0xa36e470, 
+     maskFormat=0x9efdd88, xSrc=0, ySrc=0, nlist=3, list=0xbfc017e0, glyphs=0xa36f260)
+     at ../../uxa/uxa-glyphs.c:1002
+         this_atlas = 0x9f2e8e8
+         src_x = 320
+         glyph = 0xa326798
+         src_y = 48
+         priv = 0x9efe490
+         screen = 0x8831588
+         mask = 0xa3597c0
+         y = 14
+         pixmap = 0xb7103008
+         dst_off_x = 196611
+         n = <value optimized out>
+         dst_off_y = 13
+         box = {x1 = 3, y1 = 13, x2 = 9003, y2 = 27}
+         component_alpha = 1
+         glyph_atlas = 0x9f2e8e8
+         x = 0
+         height = <value optimized out>
+         error = 0
+ #4  uxa_glyphs (op=3 '\003', pSrc=0xa3398f8, pDst=0xa36e470, maskFormat=0x9efdd88, xSrc=0, ySrc=0, 
+     nlist=3, list=0xbfc017e0, glyphs=0xa36f260) at ../../uxa/uxa-glyphs.c:1157
+ ...

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https://bugs.launchpad.net/bugs/731424

Title:
  X crashes when I set a Python Tkinter edit control to display a long
  text string in 25pt DejaVu font