Re: known way to reproduce an X.org segmentation fault

> If you have a checkout of /usr/xenocara ...

I have the cvsweb. I got the .core file with those instructions, run
gdb with my current X. I am not sure if snapshots X is compiled with
or without debug symbols.
Looking at some functions headers, I think I should mention that in
firefox the web page is loading a magnifier picture as a cursor as
soon as you hover on that image.
As for Xenocara recompile with debug symbols, is it hard to do it for
a novice like me?

$ gdb
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This GDB was configured as "amd64-unknown-openbsd6.4".
(gdb) file X
Reading symbols from /usr/X11R6/bin/X...done.
(gdb) core-file Xorg.core
Core was generated by `Xorg'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libpthread.so.26.1...done.
Loaded symbols for /usr/lib/libpthread.so.26.1
Loaded symbols for /usr/X11R6/bin/X
Symbols already loaded for /usr/lib/libpthread.so.26.1
Reading symbols from /usr/X11R6/lib/libpciaccess.so.2.0...done.
Loaded symbols for /usr/X11R6/lib/libpciaccess.so.2.0
Reading symbols from /usr/X11R6/lib/libdrm.so.7.6...done.
Loaded symbols for /usr/X11R6/lib/libdrm.so.7.6
Reading symbols from /usr/X11R6/lib/libpixman-1.so.36.0...done.
Loaded symbols for /usr/X11R6/lib/libpixman-1.so.36.0
Reading symbols from /usr/X11R6/lib/libXfont2.so.1.0...done.
Loaded symbols for /usr/X11R6/lib/libXfont2.so.1.0
Reading symbols from /usr/X11R6/lib/libfontenc.so.4.0...done.
Loaded symbols for /usr/X11R6/lib/libfontenc.so.4.0
Reading symbols from /usr/X11R6/lib/libfreetype.so.29.0...done.
Loaded symbols for /usr/X11R6/lib/libfreetype.so.29.0
Reading symbols from /usr/lib/libz.so.5.0...done.
Loaded symbols for /usr/lib/libz.so.5.0
Reading symbols from /usr/X11R6/lib/libXau.so.10.0...done.
Loaded symbols for /usr/X11R6/lib/libXau.so.10.0
Reading symbols from /usr/X11R6/lib/libxshmfence.so.0.0...done.
Loaded symbols for /usr/X11R6/lib/libxshmfence.so.0.0
Reading symbols from /usr/X11R6/lib/libXdmcp.so.11.0...done.
Loaded symbols for /usr/X11R6/lib/libXdmcp.so.11.0
Reading symbols from /usr/lib/libkvm.so.17.0...done.
Loaded symbols for /usr/lib/libkvm.so.17.0
Reading symbols from /usr/lib/libm.so.10.1...done.
Loaded symbols for /usr/lib/libm.so.10.1
Reading symbols from /usr/lib/libc.so.95.0...done.
Loaded symbols for /usr/lib/libc.so.95.0
Reading symbols from /usr/libexec/ld.so...done.
Loaded symbols for /usr/libexec/ld.so
Reading symbols from /usr/X11R6/lib/modules/extensions/libglx.so...done.
Loaded symbols for /usr/X11R6/lib/modules/extensions/libglx.so
Reading symbols from /usr/X11R6/lib/libGL.so.17.1...done.
Loaded symbols for /usr/X11R6/lib/libGL.so.17.1
Reading symbols from /usr/lib/libexpat.so.12.0...done.
Loaded symbols for /usr/lib/libexpat.so.12.0
Reading symbols from /usr/X11R6/lib/libxcb-dri3.so.0.1...done.
Loaded symbols for /usr/X11R6/lib/libxcb-dri3.so.0.1
Reading symbols from /usr/X11R6/lib/libxcb-xfixes.so.1.2...done.
Loaded symbols for /usr/X11R6/lib/libxcb-xfixes.so.1.2
Reading symbols from /usr/X11R6/lib/libxcb-present.so.0.1...done.
Loaded symbols for /usr/X11R6/lib/libxcb-present.so.0.1
Reading symbols from /usr/X11R6/lib/libxcb-sync.so.1.2...done.
Loaded symbols for /usr/X11R6/lib/libxcb-sync.so.1.2
Reading symbols from /usr/X11R6/lib/libglapi.so.0.2...done.
Loaded symbols for /usr/X11R6/lib/libglapi.so.0.2
Reading symbols from /usr/X11R6/lib/libXdamage.so.4.0...done.
Loaded symbols for /usr/X11R6/lib/libXdamage.so.4.0
Reading symbols from /usr/X11R6/lib/libXfixes.so.6.0...done.
Loaded symbols for /usr/X11R6/lib/libXfixes.so.6.0
Reading symbols from /usr/X11R6/lib/libX11-xcb.so.2.0...done.
Loaded symbols for /usr/X11R6/lib/libX11-xcb.so.2.0
Reading symbols from /usr/X11R6/lib/libxcb-glx.so.1.1...done.
Loaded symbols for /usr/X11R6/lib/libxcb-glx.so.1.1
Reading symbols from /usr/X11R6/lib/libxcb-dri2.so.1.1...done.
Loaded symbols for /usr/X11R6/lib/libxcb-dri2.so.1.1
Reading symbols from /usr/X11R6/lib/libXxf86vm.so.6.0...done.
Loaded symbols for /usr/X11R6/lib/libXxf86vm.so.6.0
Reading symbols from /usr/X11R6/lib/libXext.so.13.0...done.
Loaded symbols for /usr/X11R6/lib/libXext.so.13.0
Reading symbols from /usr/X11R6/lib/libX11.so.16.1...done.
Loaded symbols for /usr/X11R6/lib/libX11.so.16.1
Reading symbols from /usr/X11R6/lib/libxcb.so.4.0...done.
Loaded symbols for /usr/X11R6/lib/libxcb.so.4.0
Reading symbols from /usr/X11R6/lib/modules/drivers/ati_drv.so...done.
Loaded symbols for /usr/X11R6/lib/modules/drivers/ati_drv.so
Reading symbols from /usr/X11R6/lib/modules/drivers/radeon_drv.so...done.
Loaded symbols for /usr/X11R6/lib/modules/drivers/radeon_drv.so
Reading symbols from /usr/X11R6/lib/libdrm_radeon.so.4.0...done.
Loaded symbols for /usr/X11R6/lib/libdrm_radeon.so.4.0
Reading symbols from /usr/X11R6/lib/libgbm.so.0.3...done.
Loaded symbols for /usr/X11R6/lib/libgbm.so.0.3
Reading symbols from /usr/X11R6/lib/modules/libfb.so...done.
Loaded symbols for /usr/X11R6/lib/modules/libfb.so
Reading symbols from /usr/X11R6/lib/modules/libexa.so...done.
Loaded symbols for /usr/X11R6/lib/modules/libexa.so
Reading symbols from /usr/X11R6/lib/modules/dri/r600_dri.so...done.
Loaded symbols for /usr/X11R6/lib/modules/dri/r600_dri.so
Reading symbols from /usr/lib/libelf.so.2.0...done.
Loaded symbols for /usr/lib/libelf.so.2.0
Reading symbols from /usr/lib/libc++.so.2.1...done.
Loaded symbols for /usr/lib/libc++.so.2.1
Reading symbols from /usr/lib/libc++abi.so.0.1...done.
Loaded symbols for /usr/lib/libc++abi.so.0.1
Reading symbols from /usr/X11R6/lib/modules/input/kbd_drv.so...done.
Loaded symbols for /usr/X11R6/lib/modules/input/kbd_drv.so
Reading symbols from /usr/X11R6/lib/modules/input/ws_drv.so...done.
Loaded symbols for /usr/X11R6/lib/modules/input/ws_drv.so
#0 0x00000c1fc33bc483 in drmmode_load_cursor_argb ()
from /usr/X11R6/lib/modules/drivers/radeon_drv.so
(gdb) bt
#0 0x00000c1fc33bc483 in drmmode_load_cursor_argb ()
from /usr/X11R6/lib/modules/drivers/radeon_drv.so
#1 0x00000c1fc33bc59d in drmmode_load_cursor_argb_check ()
from /usr/X11R6/lib/modules/drivers/radeon_drv.so
#2 0x00000c1d126f9b84 in xf86_load_cursor_argb () from /usr/X11R6/bin/X
#3 0x00000c1d12708923 in xf86ScreenSetCursor () from /usr/X11R6/bin/X
#4 0x00000c1d1270868a in xf86SetCursor () from /usr/X11R6/bin/X
#5 0x00000c1d12706b6f in xf86CursorSetCursor () from /usr/X11R6/bin/X
#6 0x00000c1d127fe0ac in miPointerUpdateSprite () from /usr/X11R6/bin/X
#7 0x00000c1d127fd46f in miPointerDisplayCursor () from /usr/X11R6/bin/X
#8 0x00000c1d1271c3b9 in CursorDisplayCursor () from /usr/X11R6/bin/X
#9 0x00000c1d1276f4a7 in AnimCurDisplayCursor () from /usr/X11R6/bin/X
#10 0x00000c1d12682865 in ChangeToCursor () from /usr/X11R6/bin/X
#11 0x00000c1d1267cd6e in WindowHasNewCursor () from /usr/X11R6/bin/X
#12 0x00000c1d126a7697 in ChangeWindowAttributes () from /usr/X11R6/bin/X
#13 0x00000c1d12666543 in ProcChangeWindowAttributes () from /usr/X11R6/bin/X
#14 0x00000c1d126659f1 in Dispatch () from /usr/X11R6/bin/X
#15 0x00000c1d1267196c in dix_main () from /usr/X11R6/bin/X
#16 0x00000c1d12657142 in ___start () from /usr/X11R6/bin/X
#17 0x0000000000000000 in ?? ()
(gdb) bt f
#0 0x00000c1fc33bc483 in drmmode_load_cursor_argb ()
from /usr/X11R6/lib/modules/drivers/radeon_drv.so
No symbol table info available.
#1 0x00000c1fc33bc59d in drmmode_load_cursor_argb_check ()
from /usr/X11R6/lib/modules/drivers/radeon_drv.so
No symbol table info available.
#2 0x00000c1d126f9b84 in xf86_load_cursor_argb () from /usr/X11R6/bin/X
No symbol table info available.
#3 0x00000c1d12708923 in xf86ScreenSetCursor () from /usr/X11R6/bin/X
No symbol table info available.
#4 0x00000c1d1270868a in xf86SetCursor () from /usr/X11R6/bin/X
No symbol table info available.
#5 0x00000c1d12706b6f in xf86CursorSetCursor () from /usr/X11R6/bin/X
No symbol table info available.
#6 0x00000c1d127fe0ac in miPointerUpdateSprite () from /usr/X11R6/bin/X
No symbol table info available.
#7 0x00000c1d127fd46f in miPointerDisplayCursor () from /usr/X11R6/bin/X
No symbol table info available.
#8 0x00000c1d1271c3b9 in CursorDisplayCursor () from /usr/X11R6/bin/X
No symbol table info available.
#9 0x00000c1d1276f4a7 in AnimCurDisplayCursor () from /usr/X11R6/bin/X
No symbol table info available.
#10 0x00000c1d12682865 in ChangeToCursor () from /usr/X11R6/bin/X
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#11 0x00000c1d1267cd6e in WindowHasNewCursor () from /usr/X11R6/bin/X
No symbol table info available.
#12 0x00000c1d126a7697 in ChangeWindowAttributes () from /usr/X11R6/bin/X
No symbol table info available.
#13 0x00000c1d12666543 in ProcChangeWindowAttributes () from /usr/X11R6/bin/X
No symbol table info available.
#14 0x00000c1d126659f1 in Dispatch () from /usr/X11R6/bin/X
No symbol table info available.
#15 0x00000c1d1267196c in dix_main () from /usr/X11R6/bin/X
No symbol table info available.
#16 0x00000c1d12657142 in ___start () from /usr/X11R6/bin/X
No symbol table info available.
#17 0x0000000000000000 in ?? ()
No symbol table info available.
(gdb)