$ xfce4-mixer
xfce4-mixer: malloc.c:3096: sYSMALLOc: Assertion `(old_top == (((mbinptr) (((char *) &((av)->bins[((1) - 1) * 2])) - __builtin_offsetof (struct malloc_chunk, fd)))) && old_size == 0) || ((unsigned long) (old_size) >= (unsigned long)((((__builtin_offsetof (struct malloc_chunk, fd_nextsize))+((2 * (sizeof(size_t))) - 1)) & ~((2 * (sizeof(size_t))) - 1))) && ((old_top)->size & 0x1) && ((unsigned long)old_end & pagemask) == 0)' failed.
Аварийный останов
==========================
$ uname -a
Linux QUAD 2.6.32-gentoo-r5 #2 SMP Wed Feb 17 16:19:34 MSK 2010 i686 Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz GenuineIntel GNU/Linux

$ emerge --info
Portage 2.1.7.17 (default/linux/x86/10.0, gcc-4.4.3, glibc-2.11-r1, 2.6.32-gentoo-r5 i686)
=================================================================
System uname: Linux-2.6.32-gentoo-r5-i686-Intel-R-_Core-TM-2_Quad_CPU_Q6600_@_2.40GHz-with-gentoo-2.0.1
Timestamp of tree: Tue, 02 Mar 2010 18:30:13 +0000
distcc 3.1 i686-pc-linux-gnu [disabled]
ccache version 2.4 [enabled]
app-shells/bash:     4.1_p2
dev-java/java-config: 2.1.10
dev-lang/python:     2.5.4-r4, 2.6.4-r1, 3.1.1-r1
dev-util/ccache:     2.4-r8
dev-util/cmake:      2.8.0-r2
sys-apps/baselayout: 2.0.1
sys-apps/openrc:     0.6.0-r1
sys-apps/sandbox:    2.2
sys-devel/autoconf:  2.13, 2.65
sys-devel/automake:  1.5, 1.9.6-r3, 1.10.3, 1.11.1
sys-devel/binutils:  2.20-r1
sys-devel/gcc:       4.3.3-r2, 4.4.3
sys-devel/gcc-config: 1.4.1
sys-devel/libtool:   2.2.6b
virtual/os-headers:  2.6.32
ACCEPT_KEYWORDS="x86 ~x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/X11/xkb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests ccache distlocks fixpackages news parallel-fetch protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch"
GENTOO_MIRRORS="http://gentoo.iteam.net.ua/"
LANG="ru_RU.UTF-8"
LC_ALL=""
LDFLAGS="-Wl,-O1"
LINGUAS="ru en"
MAKEOPTS="-j5"
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"
PORTDIR_OVERLAY="/var/overlay"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X acl alsa aspell audacious bluetooth bzip2 cairo cdr cjk cli consolekit cracklib crypt cups cxx dbus devhelp directfb dri dvdr emerald encode extras fat fbcon fbcondecor flac fortran fusion gdbm glade gnutls gpm gtk gtk2 hal http iconv jadetex jpeg libnotify maps mikmod modules mp3 mpeg mudflap ncurses nls nptl nptlonly nvidia ogg opengl openmp pam pcre perl png portage ppds pppd python qt3support qt4 readline reflection reiser4 reiserfs sdl secure-delete session sip slang source sourceview spell spl ssl startup-notification svga svh symlink sysfs tcpd threads thunar truetype unicode usb userlocales v4l v4l2 vorbis wav win32codecs wma x264 x86 xcb xfce xfs xml xmlrpc xorg xulrunner xv zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 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 auth_digest authn_anon authn_dbd 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 dbd deflate dir disk_cache env expires ext_filter file_cache filter headers ident imagemap include info log_config logio mem_cache mime mime_magic negotiation proxy proxy_ajp proxy_balancer proxy_connect proxy_http rewrite setenvif so speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" FOO2ZJS_DEVICES="hp1020" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="ru en" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nv nvidia vesa" 
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS