https://bugs.freedesktop.org/show_bug.cgi?id=101055

Bug ID: 101055 Summary: All GL programs segfault: i915_state_derived.c:calculate_vertex_layout: i915->fs == 0 Product: Mesa Version: 17.1 Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: Drivers/DRI/i915 Assignee: dri-devel@lists.freedesktop.org Reporter: creideiki+freedesktop-bugzilla@ferretporn.se QA Contact: dri-devel@lists.freedesktop.org

I'm trying to reinstall an old laptop (Lenovo Thinkpad X60, with a Core 2 Duo CPU) with a modern Gentoo Linux, but have run into a problem where every program trying to use OpenGL segfaults immediately. This makes running e.g. KDE 5 a bit difficult. TWM works, though, so I can get X, just not OpenGL.

Here's what GDB thinks of glxgears, but every other program I've managed to debug crashes in the same way:

(gdb) run Starting program: /usr/bin/glxgears [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Running synchronized to the vertical refresh. The framerate should be approximately the same as the monitor refresh rate.

Program received signal SIGSEGV, Segmentation fault. calculate_vertex_layout (i915=0x616310) at /var/tmp/portage/media-libs/mesa-17.1.0/work/mesa-17.1.0/src/gallium/drivers/i915/i915_state_derived.c:72 72 for (i = 0; i < fs->info.num_inputs; i++) { (gdb) bt #0 calculate_vertex_layout (i915=0x616310) at /var/tmp/portage/media-libs/mesa-17.1.0/work/mesa-17.1.0/src/gallium/drivers/i915/i915_state_derived.c:72 #1 0x00007ffff41fd016 in i915_update_derived (i915=i915@entry=0x616310) at /var/tmp/portage/media-libs/mesa-17.1.0/work/mesa-17.1.0/src/gallium/drivers/i915/i915_state_derived.c:221 #2 0x00007ffff41ef31a in i915_clear_render (pipe=0x616310, buffers=5, color=0x7ffff7fd0b4c, depth=1, stencil=0) at /var/tmp/portage/media-libs/mesa-17.1.0/work/mesa-17.1.0/src/gallium/drivers/i915/i915_clear.c:254 #3 0x00007ffff3f56d71 in st_Clear (ctx=0x7ffff7fcf010, mask=18) at /var/tmp/portage/media-libs/mesa-17.1.0/work/mesa-17.1.0/src/mesa/state_tracker/st_cb_clear.c:481 #4 0x000000000040251e in draw () at glxgears.c:254 #5 0x0000000000401ce8 in draw_gears () at glxgears.c:316 #6 draw_frame (win=18874370, dpy=0x606010) at glxgears.c:341 #7 event_loop (win=18874370, dpy=0x606010) at glxgears.c:703 #8 main (argc=<optimized out>, argv=<optimized out>) at glxgears.c:798 (gdb) print fs $1 = (const struct i915_fragment_shader *) 0x0

"fs" comes almost directly from the function argument:

static void calculate_vertex_layout(struct i915_context *i915) { const struct i915_fragment_shader *fs = i915->fs; [...]

Then, in the for() loop, trying to dereference "fs" when it is a null pointer is obviously a bad thing.

Hardware:

~ # lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) ~ # grep Chipset: /var/log/Xorg.0.log [ 4671.977] (--) intel(0): Integrated Graphics Chipset: Intel(R) 945GM ~ # grep name /proc/cpuinfo model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz

Software:

~ # emerge --info media-libs/mesa Portage 2.3.5 (python 3.4.6-final-0, default/linux/amd64/13.0, gcc-6.3.0, glibc-2.24-r1, 4.11.0-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.11.0-gentoo-x86_64-Intel-R-_Core-TM-2_CPU_T7200_@_2.00GHz-with-gentoo-2.3 KiB Mem: 3068136 total, 1191300 free KiB Swap: 8388604 total, 8388604 free Timestamp of repository gentoo: Mon, 15 May 2017 21:15:01 +0000 sh bash 4.4_p12 ld GNU ld (Gentoo 2.26.1 p1.0) 2.26.1 app-shells/bash: 4.4_p12::gentoo dev-lang/perl: 5.24.1-r1::gentoo dev-lang/python: 2.7.13::gentoo, 3.4.6::gentoo dev-util/cmake: 3.8.1::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.3::gentoo sys-apps/openrc: 0.26.1::gentoo sys-apps/sandbox: 2.10-r4::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r3::gentoo sys-devel/automake: 1.12.6-r1::gentoo, 1.13.4-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.26.1::gentoo, 2.27::gentoo sys-devel/gcc: 6.3.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r4::gentoo sys-devel/make: 4.2.1-r1::gentoo sys-kernel/linux-headers: 4.10::gentoo (virtual/os-headers) sys-libs/glibc: 2.24-r1::gentoo Repositories:

gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.europe.gentoo.org/gentoo-portage priority: -1000

creideiki location: /usr/local/portage masters: gentoo priority: 0

torbrowser location: /var/lib/layman/torbrowser masters: gentoo priority: 50

ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe -ggdb" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /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 /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-march=native -O2 -pipe -ggdb" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--alphabetical --keep-going --quiet-build=n --verbose-conflicts" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs buildpkg config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news nostrip parallel-fetch parallel-install 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://distfiles.gentoo.org http://gentoo.oregonstate.edu http://www.ibiblio.org/pub/Linux/distributions/gentoo" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-O1 -Wl,--hash-style=gnu -Wl,--enable-new-dtags" MAKEOPTS="-j2" 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 --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X acl alsa amd64 berkdb bzip2 cli cracklib crypt cups cxx dbus dri egl emacs flac fortran gdbm gif iconv ipv6 jpeg kde lm_sensors modules mp3 multilib ncurses nls nptl ogg opengl openmp pam pcre png qt5 readline seccomp session ssl tcpd tiff truetype unicode vorbis x264 xattr 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 sse3 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc" INPUT_DEVICES="evdev keyboard libinput mouse wacom" 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="php5-6" PYTHON_SINGLE_TARGET="python3_4" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby23 ruby24" USERLAND="GNU" VIDEO_CARDS="intel i915" 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, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON

================================================================= Package Settings =================================================================

media-libs/mesa-17.1.0::gentoo was built with the following: USE="-bindist classic -d3d9 -debug dri3 egl gallium gbm -gles1 -gles2 llvm nptl -opencl -openmax -osmesa -pax_kernel -pic (-selinux) -unwind -vaapi -valgrind -vdpau -vulkan wayland -xa -xvmc" ABI_X86="-32 64 -x32" VIDEO_CARDS="-freedreno i915 -i965 -imx intel -nouveau -r100 -r200 -r300 -r600 -radeon -radeonsi -vc4 -vivante -vmware"