HP EliteBook 8540w kacpid process will chew an entire core 100% after resuming from a suspend. Does not chew cpu prior to suspend After reboot, does not chew CPU. Only chews a single core of the 4 available. I am not using 2.6.36 as that is a worse kernel than 35, in so far as support for this particular laptop (no brightness controls, has kworker processes chewing 100% cpu, etc). I see the patch listed in the initial post of a prior bug (which I could not re-open), has been applied but I still see the errant behavior. Reproducible: Always Steps to Reproduce: 1. Boot and login (X, fluxbox window manager) 2. Hibernate (execute /usr/sbin/hibernate as root) 3. Resume (power on, resume rather than boot) Actual Results: Resumption works fine, just the kacpid uses 100% of 1 core. Expected Results: kacpid would use minimal CPU, as it does prior to suspend/resume I am using nvidia-drivers, as the built in kernel drivers do not work for suspend/resume and also are much slower. I have read elsewhere that I should compile acpi as modules, this I have done. # lsmod Module Size Used by vboxnetflt 12063 0 vboxnetadp 4339 0 vboxdrv 1747676 2 vboxnetflt,vboxnetadp nvidia 10260494 24 iwlagn 106026 0 iwlcore 84746 1 iwlagn video 20365 0 processor 26285 0 output 1989 1 video xhci_hcd 46755 0 hp_accel 13896 0 battery 6212 0 ac 2350 0 lis3lv02d 8326 1 hp_accel button 5410 0 thermal 13232 0 I am using sys-power/hibernate-script-2.0-r1 and sys-power/suspend-0.8-r1 and have configured /etc/hibernate/common.conf (only the modules part) ### modules UnloadModules thermal ac button battery processor xhci_hcd # UnloadAllModules yes # UnloadBlacklistedModules yes LoadModules auto # LoadModulesFromFile /etc/modules I have tried UnloadAllModules to no effect. # emerge --info Portage 2.1.9.25 (default/linux/amd64/10.0/desktop, gcc-4.4.4, glibc-2.11.2-r3, 2.6.35-gentoo-r15 x86_64) ================================================================= System uname: Linux-2.6.35-gentoo-r15-x86_64-Intel-R-_Core-TM-_i7_CPU_M_620_@_2.67GHz-with-gentoo-1.12.14 Timestamp of tree: Sun, 02 Jan 2011 08:15:01 +0000 app-shells/bash: 4.1_p7 dev-java/java-config: 2.1.11-r1 dev-lang/python: 2.6.6-r1, 3.1.2-r4 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 1.12.14-r1 sys-apps/sandbox: 2.4 sys-devel/autoconf: 2.13, 2.65-r1 sys-devel/automake: 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.4-r2 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) ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -mtune=core2 -march=core2 -fomit-frame-pointer" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /lib/udev/rules.d /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /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" CXXFLAGS="-O2 -pipe -mtune=core2 -march=core2 -fomit-frame-pointer" DISTDIR="/portage/gentoo/distfiles" FEATURES="assume-digests binpkg-logs collision-protect distlocks fixlafiles fixpackages news nostrip parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox" GENTOO_MIRRORS="http://mirror.internode.on.net/pub/gentoo" LANG="en_AU.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j8" PKGDIR="/portage/gentoo/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="/tmp/portage" PORTDIR="/portage/gentoo" SYNC="rsync://mirror.internode.on.net/gentoo-portage" USE="X a52 aac acl acpi alsa amd64 amr apache2 berkdb bindist bluetooth branding bzip2 cairo cdb cddb cdparanoia cdr cleartype cli consolekit corefonts cracklib crypt css cups cxx daap dbus dri dts dvb dvd dvdr emacs emboss encode exif fam ffmpeg firefox flac fortran gd gdbm gdu gif gpm gtk hal iconv ipod ipv6 java javascript joystick jpeg jpeg2k kde laptop latin1 lcms ldap libnotify lm_sensors mad mikmod mmx mmxext mng modules mp3 mp4 mpeg mplayer mudflap multilib mysql ncurses nls nptl nptlonly nsplugin nvidia ogg opengl openmp pam pango pcre pdf perl pmu png policykit posix ppds pppd python qt3support qt4 readline rss samba sdl server session smp spell sqlite sse sse2 sse3 ssl startup-notification svg sysfs tcpd threads tiff transcode truetype type1 udev unicode usb v4l v4l2 vcd vorbis wifi wma x264 xcb xcomposite xine xinerama xml xorg xulrunner xv xvid xvmc 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 synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia" 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, FFLAGS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
I updated my UnloadModules in /etc/hibernate/common.conf to UnloadModules sbs sbshc thermal ac button battery xhci_hcd As my previously quoted list did not work (modules failing to unload, in particular, processor).
(In reply to comment #1) > I updated my UnloadModules in /etc/hibernate/common.conf to > > UnloadModules sbs sbshc thermal ac button battery xhci_hcd > > As my previously quoted list did not work (modules failing to unload, in > particular, processor). > Hello, please check out these two bug reports: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/280088 https://bugzilla.kernel.org/show_bug.cgi?id=11563 they seem relevant.
Sound relevant but are 2 years old and referencing kernel versions 7 releases ago. (2.6.28) Additionally, both seem to talk about a DVD rom in a bay. I do not unplug my dvd rom, nor change the contents of the DVD rom. Nor do I change my battery configuration. I can hibernate, power off, power on and resume in a 30 second period and the process goes nuts, with absolutely no change in any hardware configuration. I am disinclined to disable acpi and apm in the kernel boot parameters, as the functionality loss would be major. (In reply to comment #2) > (In reply to comment #1) > > I updated my UnloadModules in /etc/hibernate/common.conf to > > > > UnloadModules sbs sbshc thermal ac button battery xhci_hcd > > > > As my previously quoted list did not work (modules failing to unload, in > > particular, processor). > > > > Hello, > > please check out these two bug reports: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/280088 > https://bugzilla.kernel.org/show_bug.cgi?id=11563 > they seem relevant. >
Can you please test with gentoo-sources-2.6.38
(In reply to comment #4) > Can you please test with gentoo-sources-2.6.38 Will do, I have 2.6.38 installed but have not, as yet, done the required hibernating/rebooting required, without the altered kernel parameters or local startup tweaks.
My mistake, I updated to 2.6.36, not 2.6.38 Currently running kernel 2.6.36 - Gentoo release 8. I tend to stay with stable gentoo releases and 2.6.38-r1 is not stable - however, I will have a crack at it tomorrow. Still, in 2.6.36, the problem persists. I have to do echo "disable" > /sys/firmware/acpi/interrupts/gpe01 to prevent the kworker going nuts. I have read elsewhere that the BIOS of this laptop is problematic, not sure if it has anything to do with this problem. HP EliteBook 8540w BIOS Version 68CVD Ver F.0E Released 11/25/2010
