klauncher crashed with SIGSEGV in __kernel_vsyscall()

[Peter T Hayward]

Binary package hint: kde4libs

Ubuntu 8.04 (just updated 10pm 2-Apr-08)
Had just installed iscan 2.10.0-2_i386 after running alien to convert a rpm to a deb.
Plugged in my scanner, Epson 2580, and ran 'sudo iscan'.
X desktop immediately went blank grey and stayed that way. I could reboot by invisibly typing 'shutdown -r' command.

ProblemType: Crash
Architecture: i386
Date: Wed Apr 2 10:46:15 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/lib/kde4/lib/kde4/libexec/klauncher
NonfreeKernelModules: ath_hal
Package: kdelibs5 4:4.0.3-0ubuntu1
PackageArchitecture: i386
ProcCmdline: klauncher
ProcEnviron:
 LANGUAGE=en_US
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: kde4libs
StacktraceTop:
 __kernel_vsyscall ()
 poll () from /lib/tls/i686/cmov/libc.so.6
 ?? () from /usr/lib/libglib-2.0.so.0
 ?? ()
 ?? ()
Title: klauncher crashed with SIGSEGV in __kernel_vsyscall()
Uname: Linux 2.6.24-12-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy lp lpadmin netdev plugdev powerdev pulse-rt sambashare scanner vboxusers video