Emerged kde 3.4.1 (kde-meta). The first two days all worked perfectly, then kde started to crash. The crash is: I start kde desktop, it loads ok. Then I click the desktop, then it dissappears. I can't start any kde application, and if I use the K button, Xorg crashes and in the dmesg output I can see the following errors: mtrr: no MTRR for d0000000,2000000 found mtrr: no MTRR for d0000000,2000000 found Then I can't restart kdm or use any KDE app. I can't re-emerge kde because neither, when I try this I have errors of undefined symbols in libraries like kdelibui or qt. Everytime I have an error of undefined symbol, dmesg output adds mtrr: no MTRR for d0000000,2000000 found mtrr: no MTRR for d0000000,2000000 found However, I can continue using the system if I restart without kdm and with xfce4 (not using kde related apps the system is stable). If i restart the system, everything goes ok and I can start using kde for some minutes before it crashs again. Trying to reemerge kde packages I got the next error in dmesg (I got this error only one time): ------------[ cut here ]------------ kernel BUG at mm/rmap.c:493! invalid operand: 0000 [#1] PREEMPT Modules linked in: w83627hf i2c_isa snd_seq_oss ntfs binfmt_misc nvidia uhci_hcd usbcore i2c_sensor snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_pcm_oss snd_mixer_oss snd_seq_midi snd_seq_midi_event snd_seq snd_rtctimer snd_emu10k1 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm snd_timer snd_page_alloc snd_util_mem snd_hwdep snd soundcore hangcheck_timer evdev parport_pc lp parport analog joydev emu10k1_gp gameport libcrc32c ppp_async ppp_generic slhc crc_ccitt ip_gre psmouse rtc ide_cd thermal processor fan button ac tuner tda9887 bttv video_buf firmware_class i2c_algo_bit v4l2_common btcx_risc tveeprom i2c_core videodev CPU: 0 EIP: 0060:[<c0149d97>] Tainted: P VLI EFLAGS: 00010286 (2.6.12-ck4) EIP is at page_remove_rmap+0x37/0x50 eax: ffffffff ebx: ed48c9a0 ecx: c13002a0 edx: c13002a0 esi: 08268000 edi: c13002a0 ebp: 00000020 esp: c8eb1eb0 ds: 007b es: 007b ss: 0068 Process rsync (pid: 3350, threadinfo=c8eb0000 task=d90efac0) Stack: c15c7a00 ed48c9a0 c0143445 c13002a0 c0102987 ed48d080 08270000 08270000 0826ffff c01435aa c038a214 ed48d080 08268000 08270000 00000000 00008000 08270000 08270000 dcda5804 c01436b7 c038a214 dcda5804 08268000 08270000 Call Trace: [<c0143445>] zap_pte_range+0xc5/0x1a0 [<c0102987>] handle_signal+0xa7/0x130 [<c01435aa>] unmap_page_range+0x8a/0xb0 [<c01436b7>] unmap_vmas+0xe7/0x1f0 [<c0148034>] exit_mmap+0x84/0x160 [<c0114d87>] mmput+0x37/0xa0 [<c01195fe>] do_exit+0xbe/0x3c0 [<c0119974>] do_group_exit+0x34/0xa0 [<c0102ca1>] syscall_call+0x7/0xb Code: 75 33 83 42 08 ff 0f 98 c0 84 c0 74 1a 8b 42 08 40 78 18 c7 44 24 04 ff ff ff ff c7 04 24 10 00 00 00 e8 cd 0c ff ff 83 c4 08 c3 <0f> 0b ed 01 23 d1 2a c0 eb de 0f 0b ea 01 23 d1 2a c0 eb c3 90 <6>note: rsync[3350] exited with preempt_count 1 Bad page state at prep_new_page (in process 'X', page c13002a0) flags:0x20000014 mapping:00000000 mapcount:-1 count:0 Backtrace: [<c01398a4>] bad_page+0x74/0xb0 [<c0139bf1>] prep_new_page+0x31/0x60 [<c013a197>] buffered_rmqueue+0x107/0x1e0 [<c013a709>] __alloc_pages+0x3f9/0x420 [<c0144bb2>] do_anonymous_page+0x62/0x150 [<c0144d03>] do_no_page+0x63/0x300 [<c01451a9>] handle_mm_fault+0xe9/0x190 [<c0111abc>] do_page_fault+0x18c/0x599 [<c01134da>] scheduler_tick+0x1a/0x240 [<c01079d3>] timer_interrupt+0x63/0xb0 [<c0134060>] handle_IRQ_event+0x30/0x70 [<c011bc3d>] __do_softirq+0x7d/0x90 [<c0111930>] do_page_fault+0x0/0x599 [<c0103727>] error_code+0x4f/0x54 Trying to fix it up, but a reboot is needed If I use xfce4 and no kde packages, the system is stable 100%, I can reemerge packages like glibc, kernel, xorg perfectly but I can't reemerge packages that use kdelibs, I got ramdom errors like: /usr/kde/3.4/lib/libkhtml.so: undefined reference to `KParts::BrowserExtension::virtual_hook(int, void*)' The only unstable thing on my computer is KDE 3.4.1. Reproducible: Always Steps to Reproduce: 1. Start kdm and kde 2. Wait some minutes 3. Use any kde app or lib. Actual Results: KDE crashs, and I can't use kde anymore until I reboot the system. However I can continue using xfce4, and the system goes stable. Expected Results: KDE should'nt crash. Portage 2.0.51.22-r2 (default-linux/x86/2005.0, gcc-3.3.5-20050130, glibc-2.3.5-r0, 2.6.12-ck4 i686) ================================================================= System uname: 2.6.12-6 i686 AMD Athlon(tm) XP 2600+ Gentoo Base System version 1.6.13 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] ccache version 2.3 [enabled] dev-lang/python: 2.3.5 sys-apps/sandbox: 1.2.11 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.5 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer -m3dnow -msse -mmmx" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer -m3dnow -msse -mmmx" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig candy ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/Linux/distributions/gentoo" LANG="es_ES.utf8" LC_ALL="es_ES.utf8" LDFLAGS="-Wl,-O1 -Wl,--sort-common -z combreloc -Wl,--enable-new-dtags -Wl,--relax" LINGUAS="es" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 3dnow 3dnowext X a52 aac acpi alsa arts artswrappersuid avi berkdb bitmap-fonts bzip2 bzlib ccache cdda cddb cdparanoia cdr cdrom crypt cscope css cups curl divx4linux dmx dvd dvdread emboss encode fam flac foomaticdb fortran gd gdbm gif gpm gstreamer gtk gtk2 guile imagemagick imap imlib ipv6 jabber java jpeg junit kde kdeenablefinal kdexdeltas ldap libg++ libwww mad maildir mikmod mixer mmx mmxext motif moznocompose moznoirc moznomail mozplaintext mp3 mpeg mpeg4 mplayer mppe-mppc msn mttr music ncurses nls nvidia ogg oggvorbis openal opengl oss pam pdflib perl png ppds python qt quicktime readline real rtc samba scanner sdl slang sockets speex spell sse ssl tcltk tcpd tetex tiff timidity transcode truetype truetype-fonts type1-fonts uim unicode v4l videos vorbis xml xml2 xmms xprint xv xvid zlib linguas_es userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, MAKEOPTS
Hardware problem, sorry. Lowering DRAM timings fixed the problem.
