While it is now well known that the nvidia-kernel modules do not work well with the 4k stack patch in the mm-sources-r6 and later, I seem to have found a side effect or reversing the 4k stack patch to make the nvidia-kernel modules work. After reversing the patch, the PS/2 port mouse I have plugged into my laptop's PS/2 port suddenly works fully. Before, I could only get three buttons to work, and the scroll wheel functionality was missing. I tried many different configurations to get it to work, but nothing solved the problem. After reversing the 4K stack patch on the kernel and rebuilding, the mouse suddenly works. Is it possible that there is an issue with the kernel mouse drivers related to the 4K stack patch? Reproducible: Always Steps to Reproduce: 1. emerge mm-sources 2. apply the patch discussed here: http://forums.gentoo.org/viewtopic.php?t=156523&highlight=format+mmsources+nvidia+module 3. recompile the kernel and nvidia drivers 4. watch everything work. Actual Results: I could modprobe the nvidia-kernel module, as expected, but also found my mouse to be fully working. Perhaps it is either worth removing the 4k stack patch, or if it is to become a major part of the upcoming kernels, find out why it b0rks the mouse driver. In a related note, this also explains problems I had with gentoo-dev-sources. I would get a kernel panic on boot if the PS/2 mouse was plugged in, but the system would boot just fine if it wasn't. As soon as I plugged the mouse in - bang - kernel panic. Expected Results: Portage 2.0.50-r6 (default-x86-2004.0, gcc-3.3.2, glibc-2.3.2-r9, 2.6.5-mm6) ================================================================= System uname: 2.6.5-mm6 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 1.70GHz Gentoo Base System version 1.4.10 ccache version 2.3 [enabled] Autoconf: sys-devel/autoconf-2.58-r1 Automake: sys-devel/automake-1.8.3 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-Os -march=pentium4 -fomit-frame-pointer -mmmx -msse -msse2 -falign-loop s=4 -falign-jumps=4 -pipe -w" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.2 /share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-Os -march=pentium4 -fomit-frame-pointer -mmmx -msse -msse2 -falign-lo ops=4 -falign-jumps=4 -pipe -w" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="http://gentoo.chem.wisc.edu/gentoo/ ftp://gentoo.chem.wisc.edu/g entoo/ http://linux.thai.net/pub/mirrors/gentoo" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acpi acpi4linux aim alsa arts avi berkdb bluetooth chroot crypt cups devf s dga directfb divx4linux dvd encode f77 ffmpeg fftw foomaticdb freetype gdbm gi f gphoto2 gpm gtk gtk2 imap imlib irmc java jikes jpeg kde libg++ libwww mad mik mod mmx motif mpeg mpeg4 ncurses nls nvidia oggvorbis opengl oss pam pdflib perl pic png pnp python qt quicktime readline sdl slang spell ssl svga tcpd tiff tru etype wifi x86 xine xml2 xmms xv xvid zlib"
Please report this bug upstream at bugzilla.kernel.org
