when running with 2.6.29-gentoo-r1 kernel, I observe irregular failure of USB ports at an ACER docking station, sometimes it happens just 3 minutes after bootup, sometimes 2 days after bootup. /var/log/kern.log reports: May 4 21:36:56 jp hub 9-0:1.0: debounce: port 2: total 1500ms stable 0ms status 0x317 May 4 21:36:56 jp hub 9-0:1.0: connect-debounce failed, port 2 disabled May 4 21:36:56 jp hub 11-0:1.0: state 7 ports 2 chg 0000 evt 0006 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,01 May 4 21:36:56 jp hub 11-0:1.0: resume on port 1, status -19 May 4 21:36:56 jp hub 11-0:1.0: over-current change on port 1 May 4 21:36:56 jp hub 11-0:1.0: trying to enable port power on non-switchable hub May 4 21:36:56 jp hub 11-0:1.0: port 1, status 0317, change 000f, 1.5 Mb/s May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,04 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 May 4 21:36:56 jp uhci_hcd 0000:08:03.1: port 1 portsc fbff,05 etc. etc., file grows all the time lsusb reports: Bus 004 Device 001: ID 1d6b:0001 Bus 008 Device 001: ID 1d6b:0001 Bus 006 Device 001: ID 1d6b:0001 Bus 003 Device 001: ID 1d6b:0002 Bus 001 Device 002: ID 046d:0892 Logitech, Inc. Bus 001 Device 001: ID 1d6b:0002 Bus 007 Device 001: ID 1d6b:0001 Bus 011 Device 001: ID 1d6b:0001 Bus 010 Device 002: ID 1241:1166 Belkin optical mouse w/ scrollwheel Bus 010 Device 001: ID 1d6b:0001 Bus 009 Device 001: ID 1d6b:0001 Bus 005 Device 001: ID 1d6b:0001 Bus 002 Device 001: ID 1d6b:0002 The hardware connected seems all correct and previous kernels did not complain, I did use it for a very long time with 2.6.27-r4. When using this kernel now, I did not observe this behavior. Unfortunately, the problem might be rather hardware-specific and difficult to reproduce. Reproducible: Always Steps to Reproduce: 0. get an ACER travelmate 8200 laptop and acer docking station 1. emerge gentoo-sources-2.6.29-r1 and compile the kernel 2. boot the kernel 3. wait a while Actual Results: USB ports at the docking station are powered off Expected Results: all USB ports active dev-java/java-config: 1.3.7-r1, 2.1.7 dev-lang/python: 2.4.4-r15, 2.5.4-r2, 2.6.2 dev-python/pycrypto: 2.0.1-r8 dev-util/cmake: 2.6.3-r1 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.9 sys-devel/autoconf: 2.13, 2.63-r1 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.16.1-r3, 2.17-r1, 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.28-r1 ACCEPT_KEYWORDS="x86" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -march=pentium4m -msse2 -pipe -fno-omit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /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 /etc/udev/rules.d" CXXFLAGS="-O2 -march=pentium4m -msse2 -pipe -fno-omit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo ftp://ftp.sh.cvut.cz/MIRRORS/gentoo ftp://mirror.switch.ch/mirror/gentoo/ http://gentoo.supp.name/ " LANG="C" 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="/scratch/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/layman/gnuradio /usr/portage/local/layman/erazor /usr/local/portage /usr/local/overlays/erazor-zone.de" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X Xaw3d a52 aac aalib ac3 acl acpi alsa amr berkdb blas bluetooth bonobo branding bzip2 cairo cddb cdparanoia cdr cli cracklib crypt dbus dri dv dvb dvd dvdnav dvdr dvdread eds emboss encode esd evo exif extra fam ffmpeg firefox fortran ftp gcj gd gdbm gif gnome gphoto2 gpm gps graphics gsm gstreamer gtk hal http hwac3 icc iconv ieee1394 imagemagick imap ipv6 isdnlog jabber java javascript jpeg jpeg2k kde kpathsea lapack ldap lesstif libnotify libwww lirc lm_sensors lprng mad mbox midi mikmod mime mmap mmx mozilla mp3 mpeg mpi mudflap music mysql nas ncurses nls nptl nptlonly nsplugin obex ogg opengl openmp paste64 pcmcia pcre pdf perl plotutils png posix ppds pppd pstricks publishers python qt3 qt3support qt4 quicktime readline reflection samba scanner science sdl session sharedmem smartcard sndfile sockets socks5 sox spell spl sse sse2 ssl startup-notification svg svga sysfs tcl tcltk tcpd tetex threads tiff tk truetype unicode usb usrp v4l v4l2 vcd vorbis wifi win32codecs wxwindows x264 x86 xine xml xorg xpm 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 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="radeon radeon-hd vesa sc fbdev v4l vga" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Please post the full emerge --info output, you cut out the good parts :-)
Please reopen when the requested information is provided.