Bug 604202 – x11-drivers/nvidia-drivers-375* with x11-misc/xscreensaver - GL hacks hang/use 100% CPU on exit

• Product: Gentoo Linux
• Status: RESOLVED OBSOLETE

[Description Matthew Turnbull 2016-12-30 23:10:56 UTC]

Upgrading x11-drivers/nvidia-drivers from 370.* to 375.* causes xscreensaver's glmatrix (run via cinnamon-screensaver) to hang on exit and consume 100% cpu.



$ ps -ef | grep gl
sparky    2292     1 98 15:32 tty1     00:13:43 /usr/lib64/misc/xscreensaver/glmatrix -root -delay 54867 -density 50 -speed 3.5956 -no-rotate -window-id 41943043
$ cat /proc/2292/stack 
[<ffffffffb18012bc>] exit_to_usermode_loop+0x3c/0x70
[<ffffffffb18013da>] prepare_exit_to_usermode+0x2a/0x30
[<ffffffffb1c6779b>] retint_user+0x8/0x10
[<ffffffffffffffff>] 0xffffffffffffffff



Repeatedly locking and unlocking the screen causes these hung processes to accumulate until manually killed.

I'm speculating that this is a bug in the nvidia drivers, however, I can only reproduce this wonky behavior with xscreensaver.



x11-drivers/nvidia-drivers-370.28-r1:0/370 USE="X acpi driver kms tools -compat -gtk3 -multilib -pax_kernel -static-libs -uvm -wayland"

x11-drivers/nvidia-drivers-375.26:0/375 USE="X acpi driver kms tools -compat -gtk3 -multilib -pax_kernel -static-libs -uvm -wayland"

x11-misc/xscreensaver-5.36 USE="jpeg opengl pam xinerama -gdm -new-login -offensive -perl (-selinux) -suid"



# emerge --info 
Portage 2.3.0 (python 2.7.12-final-0, default/linux/amd64/13.0/desktop, gcc-4.9.4, glibc-2.22-r4, 4.9.0-gentoo x86_64)
=================================================================
System uname: Linux-4.9.0-gentoo-x86_64-Intel-R-_Xeon-R-_CPU_E3-1505M_v5_@_2.80GHz-with-gentoo-2.3
KiB Mem:    65790064 total,  63556548 free
KiB Swap:          0 total,         0 free
Timestamp of repository gentoo: Fri, 30 Dec 2016 20:30:01 +0000
sh bash 4.3_p48-r1
ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1
app-shells/bash:          4.3_p48-r1::gentoo
dev-java/java-config:     2.2.0-r3::gentoo
dev-lang/perl:            5.22.3_rc4::gentoo
dev-lang/python:          2.7.12::gentoo, 3.4.5::gentoo
dev-util/cmake:           3.6.3::gentoo
dev-util/pkgconfig:       0.28-r2::gentoo
sys-apps/baselayout:      2.3::gentoo
sys-apps/openrc:          0.22.4::gentoo
sys-apps/sandbox:         2.10-r1::gentoo
sys-devel/autoconf:       2.13::gentoo, 2.69::gentoo
sys-devel/automake:       1.11.6-r1::gentoo, 1.14.1::gentoo, 1.15::gentoo
sys-devel/binutils:       2.25.1-r1::gentoo
sys-devel/gcc:            4.9.4::gentoo
sys-devel/gcc-config:     1.7.3::gentoo
sys-devel/libtool:        2.4.6-r2::gentoo
sys-devel/make:           4.1-r1::gentoo
sys-kernel/linux-headers: 4.9::gentoo (virtual/os-headers)
sys-libs/glibc:           2.22-r4::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-extra-opts: --exclude ChangeLog

sparky-bluefang
    location: /var/lib/layman/sparky-bluefang
    masters: gentoo
    priority: 0

x-portage
    location: /usr/local/portage
    masters: gentoo
    priority: 1

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -march=native"
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 xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://gentoo.osuosl.org/ http://mirrors.rit.edu/gentoo/"
LANG="en_US.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude ChangeLog"
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 --exclude=/.git"
PORTAGE_TMPDIR="/tmp"
USE="X a52 aac acl acpi amd64 apng bash-completion berkdb branding bzip2 cairo caps cdda cdio cdr cgroups cli consolekit cracklib crypt css cups curl cxx dbus dri dts dvd dvdr emboss enca encode exif faad fam ffmpeg firefox flac fluidsynth fontconfig foomaticdb fortran gdbm gif gimp glamor glib glitz gnome gnome-keyring gnutls gpm gtk iconv icu ipv6 jpeg lame lcms libass libnotify mad magic matroska midi minizip mmx mmxext mod modplug modules mp3 mp4 mpeg mplayer mudflap multilib nano-syntax ncurses nls nocd nptl ogg opengl openmp pam pango pcre pdf png policykit ppds projectm pulseaudio qt5 readline resolvconf samba scanner sdl seccomp session skins smapi sndfile spell sqlite sse sse2 ssl startup-notification svg symlink tcpd theora thinkpad threads tiff truetype udev udisks unicode upcall usb v4l vala vdpau videos visualization vorbis wicd wifi winbind wmf x264 xattr xcb xcomposite xinerama xml xmp xosd xscreensaver xsl xv xvid 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" CPU_FLAGS_X86="aes avx avx2 fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" 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" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="evdev synaptics wacom" KERNEL="linux" L10N="en en-US" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_US" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby21" 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:  CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, USE_PYTHON

[Comment 1 Jeroen Roovers (RETIRED) 2016-12-30 23:43:37 UTC]

Looks a lot like bug #478074.

[Comment 2 Matthew Turnbull 2021-01-27 05:39:04 UTC]

I'm going to call this obsolete, given the age of the report and that I can no longer reproduce with the latest versions (though I don't actively use xscreensaver anymore).