Crash Dump: (not strace)
1 363919 /usr/lib64/python2.5/site-packages/_snackmodule.so
7f3d446d1000-7f3d446d2000 r--p 00006000 08:01 363919 /usr/lib64/python2.5/site-packages/_snackmodule.so
7f3d446d2000-7f3d446d3000 rw-p 00007000 08:01 363919 /usr/lib64/python2.5/site-packages/_snackmodule.so
7f3d446d3000-7f3d446d4000 rw-p 7f3d446d3000 00:00 0
7f3d446d4000-7f3d446da000 r-xp 00000000 08:01 426346 /usr/lib64/python2.5/lib-dynload/_struct.so
7f3d446da000-7f3d448d9000 ---p 00006000 08:01 426346 /usr/lib64/python2.5/lib-dynload/_struct.so
7f3d448d9000-7f3d448da000 r--p 00005000 08:01 426346 /usr/lib64/python2.5/lib-dynload/_struct.so
7f3d448da000-7f3d448dc000 rw-p 00006000 08:01 426346 /usr/lib64/python2.5/lib-dynload/_struct.so
7f3d448dc000-7f3d448e3000 r-xp 00000000 08:01 426376 /usr/lib64/python2.5/lib-dynload/operator.so
7f3d448e3000-7f3d44ae2000 ---p 00007000 08:01 426376 /usr/lib64/python2.5/lib-dynload/operator.so
7f3d44ae2000-7f3d44ae3000 r--p 00006000 08:01 426376 /usr/lib64/python2.5/lib-dynload/operator.so
7f3d44ae3000-7f3d44ae5000 rw-p 00007000 08:01 426376 /usr/lib64/python2.5/lib-dynload/operator.so
7f3d44ae5000-7f3d44ae9000 r-xp 00000000 08:01 426366 /usr/lib64/python2.5/lib-dynload/_locale.so
7f3d44ae9000-7f3d44ce8000 ---p 00004000 08:01 426366 /usr/lib64/python2.5/lib-dynload/_locale.so
7f3d44ce8000-7f3d44ce9000 r--p 00003000 08:01 426366 /usr/lib64/python2.5/lib-dynload/_locale.so
7f3d44ce9000-7f3d44cea000 rw-p 00004000 08:01 426366 /usr/lib64/python2.5/lib-dynload/_locale.so
7f3d44cea000-7f3d44cef000 r-xp 00000000 08:01 426388 /usr/lib64/python2.5/lib-dynload/strop.so
7f3d44cef000-7f3d44eee000 ---p 00005000 08:01 426388 /usr/lib64/python2.5/lib-dynload/strop.so
7f3d44eee000-7f3d44eef000 r--p 00004000 08:01 426388 /usr/lib64/python2.5/lib-dynload/strop.so
7f3d44eef000-7f3d44ef1000 rw-p 00005000 08:01 426388 /usr/lib64/python2.5/lib-dynload/strop.so
7f3d44ef1000-7f3d44ef5000 r-xp 00000000 08:01 426337 /usr/lib64/python2.5/lib-dynload/time.so
7f3d44ef5000-7f3d450f4000 ---p 00004000 08:01 426337 /usr/lib64/python2.5/lib-dynload/time.so
7f3d450f4000-7f3d450f5000 r--p 00003000 08:01 426337 /usr/lib64/python2.5/lib-dynload/time.so
7f3d450f5000-7f3d450f7000 rw-p 00004000 08:01 426337 /usr/lib64/python2.5/lib-dynload/time.so
7f3d450f7000-7f3d45138000 rw-p 7f3d450f7000 00:00 0
7f3d45138000-7f3d45278000 r-xp 00000000 08:01 461558 /lib64/libc-2.9.so
7f3d45278000-7f3d45477000 ---p 00140000 08:01 461558 /lib64/libc-2.9.so
7f3d45477000-7f3d4547b000 r--p 0013f000 08:01 461558 /lib64/libc-2.9.so
7f3d4547b000-7f3d4547c000 rw-p 00143000 08:01 461558 /lib64/libc-2.9.so
7f3d4547c000-7f3d45481000 rw-p 7f3d4547c000 00:00 0
7f3d45481000-7f3d45501000 r-xp 00000000 08:01 461828 /lib64/libm-2.9.so
7f3d45501000-7f3d45700000 ---p 00080000 08:01 461828 /lib64/libm-2.9.so
7f3d45700000-7f3d45701000 r--p 0007f000 08:01 461828 /lib64/libm-2.9.so
7f3d45701000-7f3d45702000 rw-p 00080000 08:01 461828 /lib64/libm-2.9.so
7f3d45702000-7f3d45704000 r-xp 00000000 08:01 461862 /lib64/libutil-2.9.so
7f3d45704000-7f3d45903000 ---p 00002000 08:01 461862 /lib64/libutil-2.9.so
7f3d45903000-7f3d45904000 r--p 00001000 08:01 461862 /lib64/libutil-2.9.so
7f3d45904000-7f3d45905000 rw-p 00002000 08:01 461862 /lib64/libutil-2.9.so
7f3d45905000-7f3d45907000 r-xp 00000000 08:01 461572 /lib64/libdl-2.9.so
7f3d45907000-7f3d45b07000 ---p 00002000 08:01 461572 /lib64/libdl-2.9.so
7f3d45b07000-7f3d45b08000 r--p 00002000 08:01 461572 /lib64/libdl-2.9.so
7f3d45b08000-7f3d45b09000 rw-p 00003000 08:01 461572 /lib64/libdl-2.9.so
7f3d45b09000-7f3d45b1f000 r-xp 00000000 08:01 461839 Aborted
$ emerge --info
Portage 2.1.6.13 (default/linux/amd64/2008.0, gcc-4.1.2, glibc-2.9_p20081201-r2, 2.6.29-gentoo-r5 x86_64)
=================================================================
System uname: Linux-2.6.29-gentoo-r5-x86_64-AMD_Athlon-tm-_7850_Dual-Core_Processor-with-glibc2.2.5
Timestamp of tree: Mon, 13 Jul 2009 18:00:01 +0000
app-shells/bash: 3.2_p39
dev-lang/python: 2.4.4-r13, 2.5.4-r3
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.11.1
sys-apps/sandbox: 1.6-r2
sys-devel/autoconf: 2.13, 2.63
sys-devel/automake: 1.5, 1.10.2
sys-devel/binutils: 2.18-r3
sys-devel/gcc-config: 1.4.1
sys-devel/libtool: 1.5.26
virtual/os-headers: 2.6.27-r2
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=x86-64 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LDFLAGS="-Wl,-O1"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="acl amd64 apache2 berkdb bzip2 cdr cli cracklib crypt ctype cups dri fortran gd gdbm gpm hal howl iconv imap ipv6 isdnlog jpeg maildirpng midi mmx mudflap multilib mysql mysqli ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session spl sse sse2 ssl sysfs tcpd unicode xml xml2 xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="fbdev glint i810 intel mach64 mga neomagic nv r128 radeon savage sis tdfx trident vesa vga via vmware voodoo"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
----------
This is reproducible by trying to run byobu-config and selecting ANY option in the menu. I've attached the strace to the bug.
What version of python-newt does gentoo have now? Can you please try the latest byobu there?