Public bug reported:

PRETTY_NAME="Ubuntu quantal (12.10)"
VERSION="12.10, Quantal Quetzal"

Package: xless
Priority: optional
Section: universe/text
Installed-Size: 128
Origin: Ubuntu
Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Architecture: i386
Version: 1.7-14.1
Depends: libc6 (>= 2.4), libx11-6, libxaw7, libxmu6, libxt6
Filename: pool/universe/x/xless/xless_1.7-14.1_i386.deb

xless has a button to popup a search dialog window.   After entering the
search string and hitting <CR>, the application crashes with a
segmentation violation.  Using the search dialog invoked with <CTRL><S>
also results in a crash,  so I get the impression that the search is
successful and that the crash occurs when redrawing the text display
pane to show the string highlighted.

This bug was not present as far as I am aware in previous versions of
Ubuntu and appeared with the change in version of libXaw (as well as the
related upgrade of libXt of course).

After downloading the source and using debian/rules to compile with -g
flag and dh_strip commented out,  and installing the debug packages

ii  libx11-6-dbg:i386           2:1.5.0-1ubuntu0.1          i386      X11 
client-side library (debug package)
ii  libxaw7-dbg:i386            2:1.0.10-2                            i386      
X11 Athena Widget library (debug package)
ii  libxt6-dbg:i386               1:1.1.3-1ubuntu0.12.10   i386     X11 toolkit 
intrinsics library (debug package)

the attached backtrace report was generated indicating the cause of the
crash occurs in XawTextSelectionList of libXaw, so perhaps the bug
should be filed against libXaw rather than xless.

As I use xless as my manual page viewer, I find this bug to be extremely
inconvenient.

** Affects: xless (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: libxaw xawtextsetselection xless

** Attachment added: "gdb backtrace for xless crash in XawTextSetSelection"
   
https://bugs.launchpad.net/bugs/1198758/+attachment/3728627/+files/gdb_xless-1.7.txt

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https://bugs.launchpad.net/bugs/1198758

Title:
  xless 1.7 -- segmentation fault in libXaw using search dialog popup

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