When I try to load the module acpi_cpufreq it doesn't load and gives the "FATAL: Error inserting acpi_cpufreq". dmesg shows ACPI Exceptions and Errors. acpi is enabled in BIOS and the kernel, as well as "Enhanced Speedstep" in the BIOS Reproducible: Always Steps to Reproduce: 1. modprobe acpi-cpufreq 2. cpufreq-info 3. Actual Results: # modprobe acpi-cpufreq FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.27-gentoo-r8/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device # cpufreq-info [..] analyzing CPU 0: no or unknown cpufreq driver is active on this CPU [..] # dmesg ACPI Error (psargs-0358): [CFGD] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU0._PCT] (Node ffff88011fa6c8b0), AE_NOT_FOUND ACPI Exception (processor_perflib-0202): AE_NOT_FOUND, Evaluating _PCT [20080609] ACPI Error (psargs-0358): [CFGD] Namespace lookup failure, AE_NOT_FOUND ACPI Error (psparse-0530): Method parse/execution failed [\_PR_.CPU1._PCT] (Node ffff88011fa6c810), AE_NOT_FOUND ACPI Exception (processor_perflib-0202): AE_NOT_FOUND, Evaluating _PCT [20080609] Expected Results: The module should load without errors and scale the cpufreq on both cores. nothing specific about this setup. The board is an Intel S3210-SHLC, can't tell if the BIOS is up to date right now, as the server is in production mode right now. I read the release notes of the latest BIOS at http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&Inst=Yes&ProductID=2869&DwnldID=17333&strOSs=All&OSFullName=All%20Operating%20Systems&lang=eng but they didn't really point at such an issue as far as I understand them. # emerge --info Portage 2.1.6.7 (default/linux/amd64/2008.0/server, gcc-4.1.2, glibc-2.8_p20080602-r1, 2.6.27-gentoo-r8 x86_64) ================================================================= System uname: Linux-2.6.27-gentoo-r8-x86_64-Intel-R-_Core-TM-2_CPU_E7400_@_2.80GHz-with-glibc2.2.5 Timestamp of tree: Mon, 23 Mar 2009 15:30:01 +0000 app-shells/bash: 3.2_p39 dev-lang/python: 2.4.4-r13, 2.5.2-r7 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.63 sys-devel/automake: 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="amd64" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=nocona -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-march=nocona -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LDFLAGS="-Wl,-O1" MAKEOPTS="-j3" 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="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="acl amd64 apache2 berkdb bzip2 cli cracklib crypt cups dri gdbm gpm iconv isdnlog mailwrapper midi mmx mudflap multilib mysql ncurses nls nptl nptlonly openmp pam pcre perl pppd python readline reflection session snmp spl sse sse2 ssl sysfs tcpd truetype unicode 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 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="fbdev glint i810 intel mach64 mga neomagic nv r128 radeon savage sis tdfx trident vesa vga via vmware voodoo" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
additional: I will provide BIOS-infos as soon as we manage to boot that box.
Solved via BIOS-Upgrade: old version: S3200X38.86B.00.00.0042 current (working) version: S3200X38.86B.00.00.0046 Sorry for the noise.