When I compile sys-kernel/hardened-sources-2.6.32-r2[67] using sys-devel/gcc-4.5.1 the kernel will reproducibly oops at boot. Kernel config and boot output attached. Reproducible: Always Portage 2.2.0_alpha4 (hardened/linux/ia64/server, gcc-4.4.5, glibc-2.11.2-r3, 2.6.32-hardened-r27 ia64) ================================================================= System Settings ================================================================= System uname: Linux-2.6.32-hardened-r27-ia64-31-with-gentoo-2.0.1 Timestamp of tree: Mon, 22 Nov 2010 15:45:01 +0000 app-shells/bash: 4.1_p7 dev-lang/python: 2.6.5-r3, 3.1.2-r4 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 2.0.1-r1 sys-apps/openrc: 0.6.3 sys-apps/sandbox: 2.3-r1 sys-devel/autoconf: 2.65-r1 sys-devel/automake: 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.5, 4.5.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.81-r2 virtual/os-headers: 2.6.30-r1 (sys-kernel/linux-headers) Repositories: gentoo sunrise local ACCEPT_KEYWORDS="ia64" ACCEPT_LICENSE="* -@EULA" CBUILD="ia64-unknown-linux-gnu" CFLAGS="-pipe -mtune=mckinley -O2 -ftree-vectorize" CHOST="ia64-unknown-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5/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="-pipe -mtune=mckinley -O2 -ftree-vectorize" DISTDIR="/var/cache/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y --keep-going" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" GENTOO_MIRRORS="http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/ http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://ftp.spline.inf.fu-berlin.de/mirrors/gentoo/ http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ http://distfiles.gentoo.org" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -Wl,--hash-style=gnu" MAKEOPTS="-j3" PKGDIR="/var/cache/portage/packages" PORTAGE_COMPRESS="xz" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_EXTRA_OPTS=" --include='/sci-libs/' --include='/sci-libs/gsl/' --exclude='/sci-libs/*/' --include='/x11-libs/' --include='/x11-libs/qt*/' --include='/x11-libs/cairo/' --include='/x11-libs/pango/' --include='/x11-libs/pixman/' --exclude='/x11-libs/*/' --include='/x11-misc/' --include='/x11-misc/util-macros/' --exclude='/x11-misc/*/' --exclude='/games*/' --exclude='/gnome*/' --exclude='/gnustep*/' --exclude='/gpe*/' --exclude='/kde*/' --exclude='/lxde*/' --exclude='/rox*/' --exclude='/sci*/' --exclude='/x11*/' --exclude='/xfce*/'" 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="/var/cache/portage/gentoo" PORTDIR_OVERLAY="/var/cache/portage/layman/sunrise /var/cache/portage/local" SYNC="rsync://gentoo.kynes.de:800/gentoo-portage" USE="acl berkdb bzip2 caps cli cracklib crypt cups cxx dri gdbm gpm hardened ia64 iconv ipv6 modules mudflap ncurses nls nptl nptlonly openmp pam pcre pic pppd readline session snmp ssl sysfs tcpd truetype unicode urandom vhosts xml 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 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" 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="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="fbdev glint mach64 mga nv r128 radeon savage tdfx vesa voodoo" 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, FFLAGS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS_FLAGS ================================================================= Package Settings ================================================================= sys-devel/gcc-4.4.5 was built with the following: USE="graphite hardened mudflap nls nptl openmp (-altivec) -bootstrap -build -doc (-fixed-point) -fortran -gcj -gtk (-libffi) (-multilib) -multislot (-n32) (-n64) -nocxx -nopie -nossp -objc -objc++ -objc-gc -test -vanilla" CFLAGS="-pipe -mtune=mckinley -O2" CXXFLAGS="-pipe -mtune=mckinley -O2" sys-devel/gcc-4.5.1-r1 was built with the following: USE="graphite hardened lto mudflap nls nptl openmp (-altivec) -bootstrap -build -doc (-fixed-point) -fortran -gcj -gtk (-libffi) (-multilib) -multislot (-n32) (-n64) -nocxx -nopie -nossp -objc -objc++ -objc-gc -test -vanilla" CFLAGS="-pipe -mtune=mckinley -O2" CXXFLAGS="-pipe -mtune=mckinley -O2"
Created attachment 255293 [details] boot.log
Created attachment 255295 [details] .config
Reproducible with sys-kernel/openvz-sources-2.6.27.7.1:2.6.27-levitan.1, too.
(In reply to comment #3) > Reproducible with sys-kernel/openvz-sources-2.6.27.7.1:2.6.27-levitan.1, too. P.S: The pointers mentioned in the boot log are also the same on the 2.6.27 OpenVZ kernel.
Adjusting Summary to reflect that OpenVZ crashes as well.
gcc-4.5.2 has the same issues. Might or might not have something to do with bug #318215, which is also about crashing lowlevel code (Grub 2 in that case). But that happens on x86 as well, hence the "might not".
Appears fixed with 4.5.3. I vaguely remember there to be an upstream bug about it, but I can't find it for reference at this time. Please reopen if you find the issue not to be fixed.
