omnibook: Driver version 2.20070211-trunk. omnibook: Toshiba Satellite P20 detected. omnibook: Begin table match of ac feature. omnibook: Returning table entry nr 0. omnibook: Begin table match of battery feature. omnibook: Returning table entry nr 0. BUG: unable to handle kernel paging request at 000000000000b800 IP: [<ffffffff81186807>] strnlen+0x7/0x40 PGD 7ddc3067 PUD 7dcb2067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/bus/platform/drivers/omnibook/uevent CPU 0 Modules linked in: omnibook(+) Pid: 1378, comm: modprobe Not tainted 2.6.35-pf10 #2 ISRAA/Satellite P200 RIP: 0010:[<ffffffff81186807>] [<ffffffff81186807>] strnlen+0x7/0x40 RSP: 0018:ffff88007df13bf0 EFLAGS: 00010086 RAX: 0000000000000000 RBX: ffffffff817c1b82 RCX: 0000000000000000 RDX: 000000000000b800 RSI: ffffffffffffffff RDI: 000000000000b800 RBP: ffffffff817c1f60 R08: 000000000000ffff R09: 000000000000ffff R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000b800 R13: 0000000000000000 R14: 000000000000ffff R15: ffff88007df13c58 FS: 00007f1d2cef4700(0000) GS:ffff880001800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000000b800 CR3: 000000007c161000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process modprobe (pid: 1378, threadinfo ffff88007df12000, task ffff88007f766a00) Stack: ffffffff811885a5 ffffffff817c1b82 ffffffffa0008346 ffff88007df13d58 <0> ffffffff817c1f60 ffffffffa0008346 ffffffff811891ad 000000010000ffff <0> 0000000100000000 0000000000000017 ffffffff817c1b60 0000000000000400 Call Trace: [<ffffffff811885a5>] ? string.clone.3+0x35/0xc0 [<ffffffff811891ad>] ? vsnprintf+0x22d/0x640 [<ffffffff81056fcd>] ? up+0xd/0x40 [<ffffffff811896c9>] ? vscnprintf+0x9/0x20 [<ffffffff8103b1e9>] ? vprintk+0xe9/0x450 [<ffffffff81181404>] ? ida_get_new_above+0x154/0x1d0 [<ffffffff81181652>] ? idr_pre_get+0x52/0x90 [<ffffffff814f0641>] ? printk+0x40/0x45 [<ffffffffa000e151>] ? omnibook_max_brightness+0x2691/0x2979 [omnibook] [<ffffffff812de6b6>] ? driver_probe_device+0x96/0x1b0 [<ffffffff812de870>] ? __device_attach+0x0/0x60 [<ffffffff812dd3bc>] ? bus_for_each_drv+0x5c/0x90 [<ffffffff812de55f>] ? device_attach+0x8f/0xb0 [<ffffffff812ddd8d>] ? bus_probe_device+0x2d/0x50 [<ffffffff812dbcb4>] ? device_add+0x504/0x5e0 [<ffffffff812dfea8>] ? platform_device_add+0xf8/0x1c0 [<ffffffffa000e439>] ? init_module+0x0/0x3e0 [omnibook] [<ffffffffa000e527>] ? init_module+0xee/0x3e0 [omnibook] [<ffffffff810002f4>] ? do_one_initcall+0x34/0x1a0 [<ffffffff81068d49>] ? sys_init_module+0xb9/0x200 [<ffffffff8100252b>] ? system_call_fastpath+0x16/0x1b Code: 00 00 00 00 31 c0 80 3f 00 74 14 48 89 f8 66 0f 1f 44 00 00 48 ff c0 80 38 00 75 f8 48 29 f8 f3 c3 0f 1f 00 31 c0 48 85 f6 74 2c <80> 3f 00 74 27 48 ff ce 48 89 f8 eb 0c 0f 1f 40 00 48 ff ce 80 RIP [<ffffffff81186807>] strnlen+0x7/0x40 RSP <ffff88007df13bf0> CR2: 000000000000b800 ---[ end trace 4b1fe173426d2725 ]--- This trace is pf-sources but gentoo-sources-2.6.35-r9 gives the same effect. The bug is hit every time I try to load the omnibook module. My laptop is Toshiba Satellite P200.
Oh, forgot to mention, I use up-to-date ~amd64.
what kernel is this? Is it: http://freshmeat.net/projects/pf-patchset ?
> This trace is pf-sources but gentoo-sources-2.6.35-r9 gives the same effect. After seeing the BUG on gentoo kernel, I tried pf-sources, but no difference.
emerge --info with gentoo kernel that failed, please.
Portage 2.1.9.13 (default/linux/amd64/10.0/desktop/kde, gcc-4.5.1, glibc-2.12.1-r1, 2.6.35-gentoo-r9 x86_64) ================================================================= System uname: Linux-2.6.35-gentoo-r9-x86_64-Intel-R-_Core-TM-2_Duo_CPU_T5450_@_1.66GHz-with-gentoo-2.0.1 Timestamp of tree: Tue, 05 Oct 2010 17:00:01 +0000 app-shells/bash: 4.1_p7 dev-java/java-config: 2.1.11 dev-lang/python: 2.6.5-r3 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 2.0.1 sys-apps/openrc: 0.6.3 sys-apps/sandbox: 2.3-r1 sys-devel/autoconf: 2.13::<unknown repository>, 2.68 sys-devel/automake: 1.8.5-r3::<unknown repository>, 1.9.6-r3, 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.4-r2, 4.5.1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.2.10 sys-devel/make: 3.81-r2 virtual/os-headers: 2.6.35 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -march=native -g -pipe -fno-ident" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /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="-O2 -march=native -g -pipe -fno-ident" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs distlocks fixlafiles fixpackages news parallel-fetch protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org" LC_ALL="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-O1 -Wl,--hash-style=gnu" MAKEOPTS="-j2" 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/layman/Spring /usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X a52 aac acpi alsa amd64 bash-completion branding bzip2 cairo cdr cli consolekit cracklib crypt cxx dbus dri dts dvd dvdr emboss encode exif fam ffmpeg firefox flac fortran gdbm gif gmp gpm hal iconv imagemagick ipv6 jpeg jpeg2k kde kpathsea laptop latex lcms libnotify lm_sensors mad mikmod mmap mmx mmxext mng modules mp3 mp4 mpeg mplayer mudflap multilib musepack musicbrainz ncurses nls nptl nptlonly nsplugin ogg openal opengl openmp pam pango pch pcre pdf perl png policykit postgres ppds pppd python qt3support qt4 quicktime readline reflection sdl session spell sse sse2 sse3 ssl ssse3 startup-notification svg sysfs tcpd threads tiff truetype unicode usb vorbis x264 xcb xcomposite xine xml xorg xscreensaver xulrunner xv xvid 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="evdev synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="radeon" 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, LANG, LINGUAS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Can't reproduce it root@Eternity ~ # modprobe omnibook root@Eternity ~ # dmesg [14992.614434] omnibook: Driver version 2.20070211-trunk. [14992.614458] omnibook: Unknown model. [14992.614518] PM: Adding info for platform:omnibook [14992.614538] omnibook: dmi feature has no backend table, io_op not initialized. [14992.614542] omnibook: version feature has no backend table, io_op not initialized. [14992.614545] omnibook: Enabled features: dmi version. I use the latest pf-sources
Ok... I tried to bisect which kernel fails, but what I found is even with the latest kernel the omnibook module works fine if I compile it (module) with GCC 4.4 (gcc version 4.4.4 (Gentoo 4.4.4-r2 p1.2, pie-0.4.5)). Compiled with GCC 4.5 (gcc version 4.5.1 (Gentoo 4.5.1 p1.0, pie-0.4.5)), module fails. Kernel in both cases compiled with 4.5.
Could you please add the following patch which seems to solve this problem into main tree http://sourceforge.net/tracker/?func=detail&aid=3157406&group_id=174260&atid=868544 ? and correct kernel version checking(in Makefile) for backlight support in 3.x kernels.
I will do that. But explain your "backlight support" comment you made cause I don't understand it. If you can provide a patch that would be great
In Makefile the following piece of code doesn't work properly on my pc with gentoo-sources-3.0.4 ifeq ($(OMNIBOOK_WANT_BACKLIGHT),y) ifdef CONFIG_BACKLIGHT_CLASS_DEVICE # we support backlight interface only after 2.6.16 ifeq ($(shell if [ $(SUBLEVEL) -gt 16 ] ; then echo -n 'y'; fi),y) EXTRA_CFLAGS += -DCONFIG_OMNIBOOK_BACKLIGHT else $(warning "Backlight support in only supported for kernel version newer than 2.6.16") $(warning "Disabling backlight sysfs interface") endif endif and omnibook module compiles without blacklight support. I'm not familiar with bash because I'm novice user, so maybe I don't understand something and it's my computer's specific problem, but leaving only "EXTRA_CFLAGS += -DCONFIG_OMNIBOOK_BACKLIGHT" string solves problem for me.
I don't have the hardware to test this but I will sometime next week.
The patch does not look safe to me ( what does he use extra dprint messages? ). I'd rather wait for upstream to react first
This is now masked for removal. Bug #426542
