I get kernel panic when booting with sys-kernel/gentoo-sources-2.6.36-r{4,5}. Last working kernel, at this host, is gentoo-sources-2.6.36-r1. Little summary: working configuration - gentoo-sources-2.6.36-r1 with gcc version 4.5.1 (Gentoo 4.5.1 p1.1, pie-0.4.5) not working: gentoo-sources-2.6.36-r4 - gcc version 4.5.1 (Gentoo 4.5.1-r1 p1.3, pie-0.4.5) gentoo-sources-2.6.36-r5 - gcc version 4.5.1 (Gentoo 4.5.1-r1 p1.3, pie-0.4.5) and gcc version 4.4.5 (Gentoo 4.4.5 p1.1, pie-0.4.5) I can't try gentoo-sources-2.6.36-r1 with gcc-4.4 because this kernel is removed from tree. Reproducible: Always # emerge --info Portage 2.1.9.25 (default/linux/x86/10.0/server, gcc-4.5.1, glibc-2.12.1-r3, 2.6.36-gentoo-r1 i686) ================================================================= System uname: Linux-2.6.36-gentoo-r1-i686-Intel-R-_Core-TM-2_CPU_4300_@_1.80GHz-with-gentoo-2.0.1 Timestamp of tree: Tue, 21 Dec 2010 18:15:03 +0000 ccache version 3.1.3 [enabled] app-shells/bash: 4.1_p9 dev-lang/python: 2.7.1, 3.1.3 dev-util/ccache: 3.1.3 sys-apps/baselayout: 2.0.1-r1 sys-apps/openrc: 0.6.8 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.68 sys-devel/automake: 1.10.3, 1.11.1 sys-devel/binutils: 2.21 sys-devel/gcc: 4.4.5, 4.5.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.4-r1 sys-devel/make: 3.82 virtual/os-headers: 2.6.36.1 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="x86 ~x86" ACCEPT_LICENSE="* -@EULA" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=native -mfpmath=sse -pipe -fpeel-loops -ftracer -floop-block -ftree-loop-distribution -floop-interchange -floop-strip-mine -floop-strip-mine" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/openvpn/easy-rsa /var/bind" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -march=native -mfpmath=sse -pipe -fpeel-loops -ftracer -floop-block -ftree-loop-distribution -floop-interchange -floop-strip-mine -floop-strip-mine" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs ccache collision-protect distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://trumpetti.atm.tut.fi/gentoo" LC_ALL="pl_PL.utf-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en pl" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_EXTRA_OPTS="-6" 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="/usr/portage/local/layman/steev /usr/portage/local/layman/portage-backup /usr/portage/local/layman/sunrise /usr/local/portage/miro-overlay/staging /usr/local/portage/miro-overlay/portage" SYNC="rsync://trumpetti.atm.tut.fi/gentoo-portage/" USE="a52 aac acl acpi adns aio aspell async audiofile automount bash-completion bcmath bittorrent bzip2 caps chroot clamav clamdtop cli cracklib crypt curl cxx daemon dhcp domainkeys dri dts dvd embedded exif exiscan exiscan-acl extras faac faad fam flac ftp gd gmp gnutls gpm graphite hash iconv idn ieee1394 iproute2 ipv6 javascript jpeg justify logrotate logwatch lto lzo maildir mmap mmx mmxext modules mouse mp3 mp4 mpeg mudflap nagios-dns nagios-ntp nagios-ping nagios-ssh ncurses netpbm network-cron nls nntp nptl nptlonly ogg openmp openssl optimization optimized-qmake pam pcre png pop3d posix pppd prelude profile quotas rar readline samba session sharedmem shorten slang smp sockets spell spf sse sse2 sse3 ssl ssse3 stats subtitles svg swat sysfs syslog theora threads tiff tokenizer tools tordns tos transcode unicode unzip urandom usb uudeview vcd vdpau vhosts vim vim-pager vim-syntax visibility vorbis wifi x86 xattr xfs xml xmlreader xmlrpc xmlwriter xorg xsl xvid xvmc zip 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 cgi 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 rewrite setenvif so 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="mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en pl" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="account tarpit" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS
Created attachment 257717 [details] kernel config All configs are the same
Created attachment 257719 [details] lspci -vvv
Created attachment 257721 [details] kernel panic - printscreen
Similar problem is in this forum thread: http://forums.gentoo.org/viewtopic-t-856231.html
The same problem with sys-kernel/vanilla-sources-2.6.36.2 and gcc-4.4.5/gcc-4.5.1-r1. Probably it's nothing to do for Gentoo Team.
Can you try the latest 2.6.37_rc kernel (git-sources) and tell us if it fails the same way? Would you be able to do a git bisect between vanilla-sources-2.6.36.1 and vanilla-soruces-2.6.32.2 (Which I think are your last good and first bad kernels) ?
It's going to be very interesting. Any kernel panics. I tested vanilla-sources from 2.6.34,35,37 and git 2.6.37, all of them panics. I;m going to test diffrent verison of gcc (with diffrent USE flags).
I tried gcc-4.1.2 & gentoo-sources-2.6.36-r6 . Bug still appears, i have no idea what could be reason and where looking for it.
I tried gcc:4.4 too, kernel panic still appears. The only one kernel that works correctly is hardened-source. Compiled with gcc-4.5.2 boots correctly.
This config change works for me. https://bugzilla.kernel.org/show_bug.cgi?id=25952
I can confirm it. I've turn off RELOCATABLE, kernel boots without problem.
It's good a workaround worked for you, we will follow the upstream bug and back port any fix identified.
Setting CONFIG_PHYSICAL_START=0x100000 on an Intel DH55TC board worked for me.
