Using media-libs/alsa-lib-1.0.9_rc2 in combination with the in-kernel AC97 driver in gentoo-sources-2.6.11-r4 causes the following OOPS in the kernel. Downgrading back to alsa-lib-1.0.8 fixes this issue. Apr 4 08:17:43 equinox Unable to handle kernel NULL pointer dereference at virt ual address 00000000 Apr 4 08:17:43 equinox printing eip: Apr 4 08:17:43 equinox c0225e8e Apr 4 08:17:43 equinox *pde = 00000000 Apr 4 08:17:43 equinox Oops: 0002 [#5] Apr 4 08:17:43 equinox PREEMPT Apr 4 08:17:43 equinox Modules linked in: smbfs i2c_i810 i2c_algo_bit i2c_core Apr 4 08:17:43 equinox CPU: 0 Apr 4 08:17:43 equinox EIP: 0060:[<c0225e8e>] Not tainted VLI Apr 4 08:17:43 equinox EFLAGS: 00010212 (2.6.11-gentoo-r4) Apr 4 08:17:43 equinox EIP is at memcpy+0x1e/0x40 Apr 4 08:17:43 equinox eax: 00000010 ebx: de298800 ecx: 00000004 edx: 000 00000 Apr 4 08:17:43 equinox esi: cfb73ecc edi: 00000000 ebp: bfffe3c0 esp: cfb 73e9c Apr 4 08:17:43 equinox ds: 007b es: 007b ss: 0068 Apr 4 08:17:43 equinox Process aplay (pid: 26329, threadinfo=cfb73000 task=d863 0580) Apr 4 08:17:43 equinox Stack: ffffffea ffffffea cfb73edc c0331cde 00000000 cfb7 3ecc 00000010 de298800 Apr 4 08:17:43 equinox c0332b5a de298800 cfb73ecc 00000050 00000006 00000000 00 000000 00000000 Apr 4 08:17:43 equinox 00000005 00000001 00000000 00000000 00008002 00000000 00 000000 00000000 Apr 4 08:17:43 equinox Call Trace: Apr 4 08:17:43 equinox [<c0331cde>] snd_timer_user_append_to_tqueue+0x3e/0x50 Apr 4 08:17:43 equinox [<c0332b5a>] snd_timer_user_params+0x23a/0x250 Apr 4 08:17:43 equinox [<c0332df0>] snd_timer_user_ioctl+0x140/0x260 Apr 4 08:17:43 equinox [<c0172840>] do_ioctl+0x70/0xb0 Apr 4 08:17:43 equinox [<c0172a95>] vfs_ioctl+0x65/0x200 Apr 4 08:17:43 equinox [<c0172c75>] sys_ioctl+0x45/0x70 Apr 4 08:17:43 equinox [<c010318f>] syscall_call+0x7/0xb Apr 4 08:17:43 equinox Code: 31 d2 b8 f2 ff ff ff c3 90 90 90 90 90 83 ec 0c 8b 44 24 18 89 74 24 04 8b 54 24 10 89 7c 24 08 8b 74 24 14 89 c1 c1 e9 02 89 d7 < f3> a5 a8 02 74 02 66 a5 a8 01 74 01 a4 8b 74 24 04 89 d0 8b 7c Output of emerge info; Portage 2.0.51.19 (default-linux/x86/2004.3, gcc-3.4.3-20050110, glibc-2.3.4.200 50125-r1, 2.6.11-gentoo-r4 i686) ================================================================= System uname: 2.6.11-gentoo-r4 i686 Pentium III (Coppermine) Gentoo Base System version 1.6.10 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Feb 18 2005, 08:49:05)] dev-lang/python: 2.3.5 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.5, 1.7.9-r1, 1.6.3, 1.9.5, 1.4_p6, 1.8.5-r3 sys-devel/binutils: 2.15.92.0.2-r7 sys-devel/libtool: 1.5.14 virtual/os-headers: 2.6.8.1-r4 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium3 -O2 -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-march=pentium3 -O2 -fomit-frame-pointer -pipe" DISTDIR="/nfs/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://gentoo.mirrors.pair.com ftp://gentoo.ccccom.com ftp://ftp.ussg.iu.edu/pub/linux/gentoo f tp://ftp.gtlib.cc.gatech.edu/pub/gentoo" MAKEOPTS="-j2" 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 X X509 aalib adns alsa apm avi bash-completion berkdb bitmap-fonts bzip2 chroot crypt cups curl dlloader dmx dts dvd emboss encode esd extensions fam fbcon flac font-server foomaticdb fortran gdbm gif gimpprint gnutls gpm gtk gtk2 i8x0 imagemagick imap imlib jabber javacomm javascript jce jpeg libclamav libg++ libwww live lm_sensors mad mailwrapper mbox mikmod mmap mmx mng motif mozilla mozsvg mp3 mpeg msn ncurses nethack nls nntp oggvorbis opengl oscar oss pam passfile pdflib perl png ppds python quicktime readline real rtc samba sdl slang smux snmp spell sse ssl svg svga tabs tcpd tga theora tiff truetype truetype-fonts type1-fonts unicode vidix wmf xgetdefault xml2 xpring xv xvid xvmc yahoo zlib" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS
Another dupe of bug #87544.
*** This bug has been marked as a duplicate of 87544 ***
