I am using Reproducible: Always Steps to Reproduce: 1. emerge --getbinpkg media-gfx/blender:4.2 2. blender-4.2 speck.blend This reproduces on both a AMD Ryzen 5 4500U (amdgpu mesa driver) and a Intel Core i7-1195G7 (intel mesa driver). Actual Results: bilbo@localhost ~ $ blender-4.2 speck.blend Read blend: "/home/bilbo/speck.blend" Writing: /tmp/speck.crash.txt Segmentation fault bilbo@localhost ~ $ cat /tmp/speck.crash.txt # Blender 4.2.1, Unknown revision # backtrace blender-4.2(+0xa2b832) [0x56165048e832] blender-4.2(+0x22c934) [0x56164fc8f934] /usr/lib64/libc.so.6(+0x3c380) [0x7f91d6673380] # Python backtrace Expected Results: If a different blender build is opened, for example from a random blender appimage, or from blender on a different distribution, blender 4.2 does not crash when opening this file. bilbo@localhost ~ $ emerge --info Portage 3.0.66.1 (python 3.12.8-final-0, !../../var/db/repos/gentoo/profiles/default/linux/amd64/23.0/desktop/gnome, gcc-14, glibc-2.40-r5, 6.6.67-gentoo-dist x86_64) ================================================================= System uname: Linux-6.6.67-gentoo-dist-x86_64-AMD_Ryzen_5_4500U_with_Radeon_Graphics-with-glibc2.40 KiB Mem: 23800820 total, 1850736 free KiB Swap: 0 total, 0 free Timestamp of repository gentoo: Thu, 16 Jan 2025 09:15:00 +0000 Head commit of repository gentoo: 23a087ef21ebce20a3d3cead3834c75c7d000849 Timestamp of repository brother-overlay: Tue, 17 Dec 2024 22:21:09 +0000 Head commit of repository brother-overlay: bea1e02298146559c0c3bde06de4d0f2528442f3 Timestamp of repository guru: Wed, 29 Jan 2025 09:48:37 +0000 Head commit of repository guru: 19cde7a066d5ceadc11c938540d2a3e0635a183e sh bash 5.2_p37 ld GNU ld (Gentoo 2.43 p3) 2.43.1 app-misc/pax-utils: 1.3.8::gentoo app-shells/bash: 5.2_p37::gentoo dev-build/autoconf: 2.72-r1::gentoo dev-build/automake: 1.16.5-r2::gentoo dev-build/cmake: 3.30.6::gentoo dev-build/libtool: 2.5.4::gentoo dev-build/make: 4.4.1-r100::gentoo dev-build/meson: 1.5.2::gentoo dev-java/java-config: 2.3.4::gentoo dev-lang/perl: 5.40.0::gentoo dev-lang/python: 3.12.8::gentoo, 3.13.1::gentoo dev-lang/rust-bin: 1.82.0-r101::gentoo llvm-core/clang: 18.1.8::gentoo, 19.1.4::gentoo llvm-core/llvm: 18.1.8-r6::gentoo, 19.1.4::gentoo sys-apps/baselayout: 2.17::gentoo sys-apps/openrc: 0.55.1::gentoo sys-apps/sandbox: 2.39::gentoo sys-devel/binutils: 2.43-r2::gentoo sys-devel/binutils-config: 5.5.2::gentoo sys-devel/gcc: 14.2.1_p20241221::gentoo sys-devel/gcc-config: 2.11::gentoo sys-kernel/linux-headers: 6.6-r1::gentoo (virtual/os-headers) sys-libs/glibc: 2.40-r5::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.us.gentoo.org/gentoo-portage priority: -1000 volatile: True sync-rsync-verify-max-age: 3 sync-rsync-verify-jobs: 1 sync-rsync-verify-metamanifest: yes sync-rsync-extra-opts: brother-overlay location: /var/db/repos/brother-overlay sync-type: git sync-uri: https://github.com/gentoo-mirror/brother-overlay.git masters: gentoo volatile: False guru location: /var/db/repos/guru sync-type: git sync-uri: https://github.com/gentoo-mirror/guru.git masters: gentoo volatile: False local location: /var/db/repos/local masters: gentoo volatile: False Binary Repositories: gentoobinhost priority: 1 sync-uri: https://distfiles.gentoo.org/releases/amd64/binpackages/23.0/x86-64-v3 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE @BINARY-REDISTRIBUTABLE free-noncomm brother-eula" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=x86-64-v3" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/config /usr/share/gnupg/qualified.txt /var/bind" 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/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe -march=x86-64-v3" DISTDIR="/var/cache/distfiles" ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GDK_PIXBUF_MODULE_FILE GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME" FCFLAGS="-O2 -pipe -march=x86-64-v3" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance binpkg-request-signature buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles getbinpkg ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news parallel-fetch pid-sandbox pkgdir-index-trusted preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe -march=x86-64-v3" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs" LEX="flex" MAKEOPTS="-j6 -l7" PKGDIR="/var/cache/binpkgs" 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" SHELL="/bin/bash" USE="X a52 aac acl acpi alsa amd64 bluetooth branding bzip2 cairo cdda cdr cet colord crypt cups dbus dri dts dvd dvdr eds elogind encode evo exif flac gdbm gdk-pixbuf gif gnome gnome-keyring gnome-shell gpm gstreamer gtk gui iconv icu introspection ipv6 jpeg keyring kf6compat lcms libnotify libtirpc mad mng mp3 mp4 mpeg multilib nautilus ncurses networkmanager nls ogg opengl openmp pam pango pcre pdf png policykit ppds pulseaudio qml qt5 qt6 readline sdl seccomp sound spell ssl startup-notification svg sysprof test-rust tiff tracker truetype udev udisks unicode upower usb vorbis vulkan wayland wxwidgets x264 xattr xcb xft xml xv xvid zlib" ABI_X86="64" ADA_TARGET="gcc_13" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_anon authn_dbm authn_file authz_dbm authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir env expires ext_filter file_cache filter headers include info log_config logio mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 avx avx2 f16c fma3 popcnt sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax navcom oceanserver oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 tsip tripmate tnt ublox" GUILE_SINGLE_TARGET="3-0" GUILE_TARGETS="3-0" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz glk hd44780 lb216 lcdm001 mtxorb text" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php8-2" POSTGRES_TARGETS="postgres16" PYTHON_SINGLE_TARGET="python3_12" PYTHON_TARGETS="python3_12" RUBY_TARGETS="ruby32" VIDEO_CARDS="amdgpu radeonsi" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipp2p iface geoip fuzzy condition tarpit sysrq proto logmark ipmark dhcpmac delude chaos account" Unset: ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EMERGE_DEFAULT_OPTS, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, LINGUAS, MAKE, MAKEFLAGS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PYTHONPATH, RANLIB, READELF, RUSTFLAGS, SIZE, STRINGS, STRIP, YACC, YFLAGS
Created attachment 918125 [details] blender file
Thanks for adding a file to reproduce.
Can you disable GPU Subdivision in blender (Preferences -> Viewport -> uncheck GPU Subdivision under the Subdivision menu) and then see if you still crash when opening the file?
If I disable GPU Subdivision in Gentoo's blender-4.2, the file opens without crashing. With GPU Subdivision disabled, I can also restart blender/(re)open the file from the command line without crashing. If I (re)enable GPU Subdivision while the file is already open, Gentoo blender-4.2 immediately crashes. A (non-Gentoo) blender 4.2.6 AppImage does not have this issue, and does not crash in either case.
Identical (GPU Subdivision) crashing also reproduces on media-gfx/blender:4.3
Please update opensubdiv to 3.6.0-r2 and see if that fixes that.
I updated from 3.6.0-r1 to 3.6.0-r2. With 3.6.0-r2 installed, the crash is no longer reproducible.
