Bug#148132: mga SEGV - stack trace of crash

[Chris Halls <halls@debian.org>]

Hi,

I had another report of X[mga] crashing with OpenOffice, and
turning the XaaNoSolidFillRect off cured the problem.  I took Klaus through
the procedure of generating a stack trace using the xserver-xfree86-dbg
package, and here is his report.

----- Forwarded message from Klaus Pieper <kfpieper@web.de> -----

Date: Wed, 15 Jan 2003 23:01:36 +0100
From: Klaus Pieper <kfpieper@web.de>
Subject: Re: X crashes with OO
To: Chris Halls <halls@debian.org>
X-BadReturnPath: kp@groucho.bodo.org rewritten as kfpieper@web.de
  using "From" header

Hi Chris,

here you are.
I tried X 4.2.99 (binary packages). This seems to work flawlessly.

Klaus

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This GDB was configured as "i386-linux"...
Attaching to program: /usr/X11R6/bin/XFree86-debug, process 322
Reading symbols from /lib/libz.so.1...done.
Loaded symbols for /lib/libz.so.1
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
0x401079be in select () from /lib/libc.so.6
(gdb) cont
Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x400b8f13 in memcpy () from /lib/libc.so.6
(gdb) where
#0  0x400b8f13 in memcpy () from /lib/libc.so.6
#1  0x08052e11 in MGASetupForCPUToScreenAlphaTexture (pScrn=0x86b8eb0, op=3, 
    red=0, green=0, blue=0, alpha=65535, alphaType=134316032, 
    alphaPtr=<incomplete type>, alphaPitch=4096, width=768, height=1152, 
    flags=0) at mga_storm8.c:420
#2  0x081df9f6 in XAADoComposite (op=3 '\003', pSrc=0x886a230, 
    pMask=0x8831158, pDst=0x8830fb8, xSrc=0, ySrc=0, xMask=0, yMask=0, 
    xDst=223, yDst=553, width=0, height=0) at xaaPict.c:312
#3  0x081dfcf1 in XAAComposite (op=3 '\003', pSrc=0x886a230, pMask=0x8831158, 
    pDst=0x8830fb8, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=170, yDst=584, 
    width=0, height=0) at xaaPict.c:424
#4  0x08386d8d in miSpriteComposite (op=3 '\003', pSrc=0x886a230, 
    pMask=0x8831158, pDst=0x8830fb8, xSrc=0, ySrc=0, xMask=0, yMask=0, 
    xDst=170, yDst=584, width=0, height=0) at misprite.c:2038
#5  0x08545623 in CompositePicture (op=3 '\003', pSrc=0x886a230, 
    pMask=0x8831158, pDst=0x8830fb8, xSrc=0, ySrc=0, xMask=0, yMask=0, 
    xDst=170, yDst=584, width=0, height=0) at picture.c:1033
#6  0x085426b1 in miGlyphs (op=3 '\003', pSrc=0x886a230, pDst=0x8830fb8, 
    maskFormat=0x0, xSrc=0, ySrc=0, nlist=0, list=0xbffff408, 
    glyphs=0xbffff00c) at miglyph.c:199
#7  0x081e0405 in XAAGlyphs (op=3 '\003', pSrc=0x886a230, pDst=0x8830fb8, 
    maskFormat=0x0, xSrc=0, ySrc=0, nlist=1, list=0xbffff408, 
    glyphs=0xbffff008) at xaaPict.c:644
#8  0x08386f9f in miSpriteGlyphs (op=3 '\003', pSrc=0x886a230, pDst=0x8830fb8, 
    maskFormat=0x0, xSrc=0, ySrc=0, nlist=1, list=0xbffff408, 
    glyphs=0xbffff008) at misprite.c:2098
#9  0x0854569c in CompositeGlyphs (op=3 '\003', pSrc=0x886a230, 
    pDst=0x8830fb8, maskFormat=0x0, xSrc=0, ySrc=0, nlist=1, lists=0xbffff408, 
    glyphs=0xbffff008) at picture.c:1062
#10 0x08546ab6 in ProcRenderCompositeGlyphs (client=0x88837d8) at render.c:1027
#11 0x08546ba1 in ProcRenderDispatch (client=0x88837d8) at render.c:1080
#12 0x0829e276 in Dispatch () at dispatch.c:462
#13 0x082ae00b in main (argc=3, argv=0xbffffbe4, envp=0xbffffbf4) at main.c:454
(gdb) quit
A debugging session is active.
Do you still want to close the debugger?(y or n) Detaching from program: /usr/X11R6/bin/XFree86-debug, process 322


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