Bug 155895 – Several applications give: Floating point exception

• Status: RESOLVED NEEDINFO
• Product: Gentoo Linux

[Description Tomasz Golinski 2006-11-21 15:29:35 UTC]

For several days I can run the applications only during several seconds after starting X-server. Afterwards I get

[Comment 1 Tomasz Golinski 2006-11-21 15:33:48 UTC]

Sorry, sent too early. Continuing:

I get: Floating point exception
and dmesg contains entries like:

opera[9421] trap divide error rip:f7a0d1bd rsp:ff906580 error:0
skype[9429] trap divide error rip:851bccd rsp:fff17ab0 error:0

Affected applications include opera, xine, gxine, skype, amarok, k3b, kile (maybe several more) but not gmplayer or gimp. Restarting X allows me to start something again for limited time.

I cannot pinpoint what exactly I did that started this problem.


Portage 2.1.1-r2 (default-linux/amd64/2006.1/desktop, gcc-4.1.1, glibc-2.4-r4, 2.6.18-gentoo-r2 x86_64)
=================================================================
System uname: 2.6.18-gentoo-r2 x86_64 AMD Sempron(tm) Processor 2600+
Gentoo Base System version 1.12.6
Last Sync: Tue, 21 Nov 2006 18:00:02 +0000
ccache version 2.3 [disabled]
app-admin/eselect-compiler: [Not Present]
dev-java/java-config: 2.0.28-r1
dev-lang/python:     2.4.3-r4
dev-python/pycrypto: 2.0.1-r5
dev-util/ccache:     2.3
dev-util/confcache:  [Not Present]
sys-apps/sandbox:    1.2.17
sys-devel/autoconf:  2.13, 2.60
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2
sys-devel/binutils:  2.16.1-r3
sys-devel/gcc-config: 1.3.13-r4
sys-devel/libtool:   1.5.22
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="amd64"
AUTOCLEAN="yes"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -march=k8 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/init.d /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c /etc/xdg"
CXXFLAGS="-O2 -march=k8 -pipe"
DISTDIR="/mnt/hardcore/temp/gentoo/distfiles"
FEATURES="autoconfig distlocks metadata-transfer parallel-fetch sandbox sfperms strict"
GENTOO_MIRRORS="ftp://gentoo.po.opole.pl/ ftp://mirror.icis.pcz.pl/gentoo/ http://src.gentoo.pl/ http://gentoo.zie.pg.gda.pl http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo"
LANG="pl_PL"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'"
PORTAGE_TMPDIR="/mnt/rh/gentoo/build"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="amd64 X aac acpi alsa berkdb bitmap-fonts bzip2 cairo cdr cli cracklib crypt dbus dlloader dri dts dvd dvdr eds elibc_glibc emboss encode exif fam firefox flac fortran gdbm gif gpm gstreamer gtk gtk2 hal iconv input_devices_keyboard input_devices_mouse isdnlog jpeg kernel_linux lcms ldap libg++ mad mikmod mp3 mpeg ncurses nls nptl nptlonly offensive ogg opengl pam pcre perl png ppds pppd python qt3 qt4 quicktime readline reflection sdl session spell spl ssl tcpd tetex tiff truetype truetype-fonts type1-fonts udev unicode userland_GNU userlocales video_cards_radeon video_cards_s3 video_cards_vesa video_cards_vga vorbis xml xorg xv zlib"
Unset:  CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY

[Comment 2 Tomasz Golinski 2006-11-22 08:54:25 UTC]

I was able to pinpoint what exactly causes this error to happen. After X starts up I use xrandr to change resolution down to 800x600 (my main monitor is broken). After that I get these errors.

[Comment 3 Joshua Baergen (RETIRED) 2006-12-30 10:32:41 UTC]

Fun stuff :)

Please attach xorg.conf and a Xorg.0.log from a session where this issue is experienced.  Re-open the bug once you've done this.