Bug#414307: xnest: Crashes with client Tulip

["J.P. Larocque" <piranha@thoughtcrime.us>]

Package: xnest
Version: 2:1.1.1-20
Severity: important

Xnest consistently crashes with the application Tulip (Debian package
tulip, version 2.0.6-4).  Simply create a new document.

Tulip on AMD64 also crashes xserver-xorg-core 2:1.1.1-19 on i386
during the same operation.  Tulip on i386 also crashes the same
version of xserver-xorg-core on i386.  This could be considered a much
more serious problem when it crashes a "real" X server; thankfully it
can be reproduced with Xnest.

A backtrace from the core file left by the Xnest follows.  Please let
me know if there's any particular detailed information I can give that
will help.

Core was generated by `Xnest -geometry 838x1029 -query synthetic-forms'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000004fde07 in _mesa_shareContext ()
(gdb) bt
#0  0x00000000004fde07 in _mesa_shareContext ()
#1  0x00000000004bc0f4 in GlxInitVisuals ()
#2  0x00000000004bb366 in GlxInitVisuals ()
#3  0x000000000048e26a in GlxInitVisuals ()
#4  0x000000000048a524 in XETrapDispatch ()
#5  0x00000000004329e9 in dixDestroyPixmap ()
#6  0x00000000004435fd in NotImplemented ()
#7  0x00002ba424d404ca in __libc_start_main () from /lib/libc.so.6
#8  0x000000000041d84a in ?? ()
#9  0x00007fff866c6d98 in ?? ()
#10 0x0000000000000000 in ?? ()

Thanks,

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-custom-xen-1
Locale: LANG=C, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages xnest depends on:
ii  libc6                       2.3.6.ds1-13 GNU C Library: Shared libraries
ii  libx11-6                    2:1.0.3-5    X11 client-side library
ii  libxau6                     1:1.0.1-2    X11 authorisation library
ii  libxdmcp6                   1:1.0.1-2    X11 Display Manager Control Protoc
ii  libxext6                    1:1.0.1-2    X11 miscellaneous extension librar
ii  libxfont1                   1:1.2.2-1    X11 font rasterisation library

xnest recommends no packages.

-- no debconf information

-- 
J.P. Larocque: <piranha@thoughtcrime.us>, <piranha@ely.ath.cx>