After updating to x11-drivers/nvidia-drivers-334.21 CUDA programs are not able to run. Downgrading to x11-drivers/nvidia-drivers-331.49 solves this issue. Reemerging dev-util/nvidia-cuda-toolkit-5.5.22 does not help. Reproducible: Always Steps to Reproduce: 1. emerge --sync 2. emerge nvidia-drivers 3. emerge nvidia-cuda-sdk 4. /opt/cuda/sdk/1_Utilities/deviceQuery/deviceQuery Actual Results: /opt/cuda/sdk/1_Utilities/deviceQuery/deviceQuery Starting... CUDA Device Query (Runtime API) version (CUDART static linking) cudaGetDeviceCount returned 30 -> unknown error Result = FAIL Expected Results: /opt/cuda/sdk/1_Utilities/deviceQuery/deviceQuery Starting... CUDA Device Query (Runtime API) version (CUDART static linking) Detected 2 CUDA Capable device(s) Device 0: "GeForce GTX TITAN" CUDA Driver Version / Runtime Version 6.0 / 5.5 CUDA Capability Major/Minor version number: 3.5 Total amount of global memory: 6144 MBytes (6442254336 bytes) (14) Multiprocessors, (192) CUDA Cores/MP: 2688 CUDA Cores GPU Clock rate: 876 MHz (0.88 GHz) Memory Clock rate: 3004 Mhz Memory Bus Width: 384-bit L2 Cache Size: 1572864 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Bus ID / PCI location ID: 8 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > Device 1: "GeForce GTX 680" CUDA Driver Version / Runtime Version 6.0 / 5.5 CUDA Capability Major/Minor version number: 3.0 Total amount of global memory: 2047 MBytes (2146762752 bytes) ( 8) Multiprocessors, (192) CUDA Cores/MP: 1536 CUDA Cores GPU Clock rate: 1137 MHz (1.14 GHz) Memory Clock rate: 3004 Mhz Memory Bus Width: 256-bit L2 Cache Size: 524288 bytes Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096) Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers Total amount of constant memory: 65536 bytes Total amount of shared memory per block: 49152 bytes Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): (1024, 1024, 64) Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535) Maximum memory pitch: 2147483647 bytes Texture alignment: 512 bytes Concurrent copy and kernel execution: Yes with 1 copy engine(s) Run time limit on kernels: Yes Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Bus ID / PCI location ID: 3 / 0 Compute Mode: < Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) > > Peer access from GeForce GTX TITAN (GPU0) -> GeForce GTX 680 (GPU1) : No > Peer access from GeForce GTX 680 (GPU1) -> GeForce GTX TITAN (GPU0) : No deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 6.0, CUDA Runtime Version = 5.5, NumDevs = 2, Device0 = GeForce GTX TITAN, Device1 = GeForce GTX 680 Result = PASS $ emerge --info Portage 2.2.8-r1 (default/linux/amd64/13.0/no-multilib, gcc-4.7.3, glibc-2.17, 3.12.13-gentoo x86_64) ================================================================= System uname: Linux-3.12.13-gentoo-x86_64-Intel-R-_Core-TM-_i7-3930K_CPU_@_3.20GHz-with-gentoo-2.2 KiB Mem: 32927900 total, 20202872 free KiB Swap: 0 total, 0 free Timestamp of tree: Sat, 29 Mar 2014 15:30:01 +0000 ld GNU ld (GNU Binutils) 2.23.2 app-shells/bash: 4.2_p45 dev-lang/python: 2.7.5-r3, 3.3.3 dev-util/cmake: 2.8.12.2 dev-util/pkgconfig: 0.28 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.12.4 sys-apps/sandbox: 2.6-r1 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.13.4 sys-devel/binutils: 2.23.2 sys-devel/gcc: 4.7.3-r1 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r4 sys-kernel/linux-headers: 3.9 (virtual/os-headers) sys-libs/glibc: 2.17 Repositories: gentoo ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /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="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j13" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" USE="X alsa amd64 berkdb blas bzip2 cairo cli cracklib crypt cuda cups cxx djvu dri emacs fftw fontconfig fortran gdbm graphviz gsl hscolour iconv ipv6 jpeg latex mmx modules mpi ncurses nls nptl ocaml opencl opengl openmp pam pcre plotutils png postscript readline session spell sse sse2 ssl svg tcpd threads tiff truetype udev unicode vim-syntax xft zlib" ABI_X86="64" 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" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" 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 ublox ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" QEMU_SOFTMMU_TARGETS="i386 x86_64" QEMU_USER_TARGETS="i386 x86_64" RUBY_TARGETS="ruby19 ruby20" USERLAND="GNU" VIDEO_CARDS="nvidia" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON $ eix -I nvidia [I] dev-util/nvidia-cuda-sdk Available versions: 2.02.0807.1535^b (~)4.2.9-r2 5.5.22^t {+cuda debug +doc emulation +examples opencl} Installed versions: 5.5.22^t(14:51:08 24/03/14)(cuda doc examples opencl -debug) Homepage: http://developer.nvidia.com/cuda Description: NVIDIA CUDA Software Development Kit [I] dev-util/nvidia-cuda-toolkit Available versions: 4.2.9-r2 5.5.22(0/5.5.22) {debugger doc eclipse profiler} Installed versions: 5.5.22(14:46:55 24/03/14)(doc -debugger -eclipse -profiler) Homepage: http://developer.nvidia.com/cuda Description: NVIDIA CUDA Toolkit (compiler and friends) [I] media-video/nvidia-settings Available versions: 331.20 {examples} Installed versions: 331.20(18:33:07 31/12/13)(-examples) Homepage: http://www.nvidia.com/ Description: NVIDIA Linux X11 Settings Utility [I] x11-drivers/nvidia-drivers Available versions: 96.43.23^msd 173.14.39^msd 304.121^msd 331.49^msd ~331.49-r1^msd 334.21^msd ~334.21-r1^msd {+X acpi custom-cflags gtk multilib pax_kernel (+)tools uvm KERNEL="FreeBSD linux"} Installed versions: 334.21^msd(17:48:59 24/03/14)(X tools uvm -acpi -multilib -pax_kernel KERNEL="linux -FreeBSD") Homepage: http://www.nvidia.com/ Description: NVIDIA X11 driver and GLX libraries Found 4 matches.
Try -r2. *** This bug has been marked as a duplicate of bug 505092 ***
