Bug 369035 – kde-base/kwin-4.6.2 segfaults randomly and often

• Product: Gentoo Linux
• Status: RESOLVED WORKSFORME

[Description Andrey Grozin 2011-05-28 16:33:43 UTC]

Created attachment 274901 [details]
stack trace from the crash wizard

Today I've made another attempt to upgrade kde. I already tried 4.6.0, and had several problems with it which made it absolutely unusable. I thought 4.6.2 may be better. But no :-( As in 4.6.0, kwin segfauts very often. I suppose it restarts automatically, because after a segfault it is possible to continue. I only have to close multiple windows suggesting to send a bug report about all these segfaults to kde developers. However, now also the panel has disappeared, and it is not comfortable to continue this kde session.

I removed my old .kde4/ (from 4.5.5) to start from the default configuration. After that, I configured the panel to auto-hide (as I always do). It hided; after I moved the mouse down to get it back, kwin crashed. I tried to switch to another virtual scree, and it crashed again.

I really regret that 4.5.5 (which worked well) has been removed. 4.6.* are as far from stable as *.0.

I have Intel Pineview integrated graphics.

eeepc ~ # emerge --info
Portage 2.2.0_alpha37 (default/linux/x86/10.0/desktop/kde, gcc-4.5.2, glibc-2.13-r2, 2.6.38-gentoo-r3 i686)
=================================================================
System uname: Linux-2.6.38-gentoo-r3-i686-Intel-R-_Atom-TM-_CPU_N450_@_1.66GHz-with-gentoo-2.0.2
Timestamp of tree: Fri, 27 May 2011 17:15:01 +0000
app-shells/bash:          4.2_p10
dev-java/java-config:     2.1.11-r3
dev-lang/python:          2.6.6-r1, 2.7.1-r1, 3.1.3-r1, 3.2
dev-util/cmake:           2.8.4-r1
sys-apps/baselayout:      2.0.2
sys-apps/openrc:          0.8.2-r1
sys-apps/sandbox:         2.5
sys-devel/autoconf:       2.13, 2.68
sys-devel/automake:       1.9.6-r3, 1.10.3, 1.11.1-r1
sys-devel/binutils:       2.21
sys-devel/gcc:            4.4.5, 4.5.2
sys-devel/gcc-config:     1.4.1-r1
sys-devel/libtool:        2.4-r1
sys-devel/make:           3.82
sys-kernel/linux-headers: 2.6.38 (virtual/os-headers)
sys-libs/glibc:           2.13-r2
Repositories: gentoo science sunrise lisp grozin kde45
Installed sets: 
ACCEPT_KEYWORDS="x86 ~x86"
ACCEPT_LICENSE="*"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=atom -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.3/ext-active/ /etc/php/cgi-php5.3/ext-active/ /etc/php/cli-php5.3/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c"
CXXFLAGS="-O2 -march=atom -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="assume-digests binpkg-logs collision-protect distlocks ebuild-locks fixlafiles fixpackages news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -march=atom -pipe"
GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo"
LANG="ru_RU.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
LINGUAS="ru"
MAKEOPTS="-j2"
PKGDIR="/root/mnt/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/lib/layman/science /var/lib/layman/sunrise /var/lib/layman/lisp /usr/local/portage /usr/local/kde45"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="X a52 aac acpi alsa bash-completion berkdb blas bluetooth boehm-gc branding browserplugin bzip2 cairo cdr consolekit cracklib crypt css cups curl cxx dbus dirac doc dri dvd dvdnav dvdr emacs enca encode exif fam ffmpeg fftw firefox flac fltk fortran gd gdbm gdu gif gmp gpm gsl gtk iconv imagemagick jpeg kde kpathsea lapack latex lcms ldap leim libnotify lzma mad mmx mng modules mozilla mp3 mp4 mpeg mudflap mule ncurses nls nptl nptlonly nsplugin offensive ogg opengl openmp pam pango pcre pdf perl plotutils png policykit ppds pppd python qt3support qt4 readline schroedinger sdl session speex spell sse sse2 ssl startup-notification svg sysfs tcl tcpd theora tiff tk truetype udev umfpack unicode usb v4l2 vcd vorbis win32codecs wxwidgets x264 x86 xcb xine xml xorg xulrunner xv xvid 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 authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid 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" CALLIGRA_FEATURES="braindump flow karbon kexi kpresenter krita tables words" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="ru" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="intel" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" 
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Andreas K. Hüttel 2011-05-28 22:27:57 UTC]

Looks like a compositing/X11 intel driver problem... Anything useful in /var/lib/Xorg.0.log or ~/.xsession-errors ???

[Comment 2 Andrey Grozin 2011-05-29 19:05:05 UTC]

I've disabled all desktop effects, and now have a usable system which does not bombard me by windows saying that kwin has segfaulted. So, I suppose, I'll close this bug. But the fact remains that kde-4.5.5 worked fine with lots of desktop effects enabled, and some of them were quite nice (I rather liked the cube rotation effect when switching virtual desktops). Looks like a serious regression in kde.