| Summary: | media-gfx/blender-4.2.1: build failure, SIGILL in makesdna | ||
|---|---|---|---|
| Product: | Gentoo Linux | Reporter: | JohnLM <janis.smedins> |
| Component: | Current packages | Assignee: | Paul Zander <negril.nx+gentoo> |
| Status: | UNCONFIRMED --- | ||
| Severity: | normal | CC: | aliaksei.urbanski, darkdefende, janis.smedins, proxy-maint |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | AMD64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
| Attachments: | build.log | ||
Created attachment 912849 [details]
build.log
Upstream bumped the minimum CPU requirement to a cpu with at least sse4.2 at the start to this year: https://www.blender.org/download/requirements/ Seems like they added the march compile flags here: https://www.blender.org/download/requirements/ This is tied to the "WITH_CPU_SIMD" flag. However when looking into this, it also turns out that cycles now actually seem to require sse4.2. The older sse cycles kernels were removed here: https://projects.blender.org/blender/blender/commit/2b095c97fad129683e60bb1ec0d3a6fdefdd38af I don't have any CPUs to test this with but could you try to build "WITH_CPU_SIMD=OFF" and "WITH_CYCLES_NATIVE_ONLY=ON" ? Try to render something with cycles and see if it crashes. From what I can tell it will always build the sse4.2 kernels if you are on a x86 CPU. But the question is if it still has a fallback kernel without those instructions. Note thought that some of the cycles library dependencies (openpgl) not requires sse4.2 as well. @Paul, I guess we should add a sse4.2 requirement to the build and then patch out the march=x86-64-v2 code. Wrong link to the march commit... https://projects.blender.org/blender/blender/commit/8b9743eb407fb1a5c09041b9ca39cf59cc3ce6b3 > This is tied to the "WITH_CPU_SIMD" flag. However when looking into this, it also turns out that cycles now actually seem to require sse4.2. [...] Thanks! Yeah, Blender dropping SSE2 Cycles kernel upstream might be a showstopper for me. Sigh! I modified the ebuild with @@ -389,6 +389,9 @@ -DWITH_USD="no" # TODO: Package USD -DWITH_VULKAN_BACKEND="$(usex vulkan)" -DWITH_XR_OPENXR=no + ## Testing bug #945377 + -DWITH_CPU_SIMD=OFF + -DWITH_CYCLES_NATIVE_ONLY=ON ) if has_version ">=dev-python/numpy-2"; then and tried building Blender again. It did actually solve the issue with `makesdna` built with overriding -march flags. But the build still failed further on with [2213/5395] /usr/bin/x86_64-pc-linux-gnu-g++ -DBOOST_ALL_NO_LIB -DBOOST_ATOMIC_DYN_LINK -DBOOST_ATOMIC_NO_LIB -DBOOST_DATE_TIME_DYN_LINK -DBOOST_DATE_TIME_NO_LIB -DBOOST_FILESYSTEM_DYN_LINK -DBOOST_FILESYSTEM_NO_LIB -DBOOST_IOSTREAMS_DYN_LINK -DBOOST_IOSTREAMS_NO_LIB -DBOOST_LOCALE_DYN_LINK -DBOOST_LOCALE_NO_LIB -DBOOST_REGEX_DYN_LINK -DBOOST_REGEX_NO_LIB -DBOOST_SYSTEM_DYN_LINK -DBOOST_SYSTEM_NO_LIB -DBOOST_THREAD_DYN_LINK -DBOOST_THREAD_NO_LIB -DCCL_NAMESPACE_BEGIN="namespace ccl {" -DCCL_NAMESPACE_END=} -DCYCLES_GFLAGS_NAMESPACE=gflags -DEMBREE_MAJOR_VERSION=3 -DGOOGLE_GLOG_DLL_DECL="" -DHAVE_EXECINFO_H -DNDEBUG -DTBB_SUPPRESS_DEPRECATED_MESSAGES=1 -DWITH_ASSERT_ABORT -DWITH_BLENDER_GUARDEDALLOC -DWITH_CUDA -DWITH_CUDA_DYNLOAD -DWITH_CYCLES_LOGGING -DWITH_EMBREE -DWITH_KERNEL_NATIVE -DWITH_NANOVDB -DWITH_OCIO -DWITH_OPENIMAGEDENOISE -DWITH_OPENSUBDIV -DWITH_OPENVDB -DWITH_OPENVDB_BLOSC -DWITH_OPTIX -DWITH_SYSTEM_PUGIXML -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -D__LITTLE_ENDIAN__ -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/../../extern/cuew/include -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/../atomic -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/.. -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../../sky/include -isystem /usr/include/OpenEXR -isystem /usr/include/Imath -isystem /opt/optix/include -isystem /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/extern/glog/include -isystem /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/extern/gflags/src -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wcomma-subscript -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wno-stringop-overread -Wno-stringop-overflow -Wimplicit-fallthrough=5 -Wundef -Wmissing-declarations -march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe -fopenmp -pipe -fPIC -funsigned-char -fno-strict-aliasing -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/"="" -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1_build/"="" -march=native -Wno-error=unused-macros -Wno-maybe-uninitialized -std=c++17 -MD -MT intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o -MF intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o.d -o intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o -c /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/light_tree.cpp FAILED: intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o /usr/bin/x86_64-pc-linux-gnu-g++ -DBOOST_ALL_NO_LIB -DBOOST_ATOMIC_DYN_LINK -DBOOST_ATOMIC_NO_LIB -DBOOST_DATE_TIME_DYN_LINK -DBOOST_DATE_TIME_NO_LIB -DBOOST_FILESYSTEM_DYN_LINK -DBOOST_FILESYSTEM_NO_LIB -DBOOST_IOSTREAMS_DYN_LINK -DBOOST_IOSTREAMS_NO_LIB -DBOOST_LOCALE_DYN_LINK -DBOOST_LOCALE_NO_LIB -DBOOST_REGEX_DYN_LINK -DBOOST_REGEX_NO_LIB -DBOOST_SYSTEM_DYN_LINK -DBOOST_SYSTEM_NO_LIB -DBOOST_THREAD_DYN_LINK -DBOOST_THREAD_NO_LIB -DCCL_NAMESPACE_BEGIN="namespace ccl {" -DCCL_NAMESPACE_END=} -DCYCLES_GFLAGS_NAMESPACE=gflags -DEMBREE_MAJOR_VERSION=3 -DGOOGLE_GLOG_DLL_DECL="" -DHAVE_EXECINFO_H -DNDEBUG -DTBB_SUPPRESS_DEPRECATED_MESSAGES=1 -DWITH_ASSERT_ABORT -DWITH_BLENDER_GUARDEDALLOC -DWITH_CUDA -DWITH_CUDA_DYNLOAD -DWITH_CYCLES_LOGGING -DWITH_EMBREE -DWITH_KERNEL_NATIVE -DWITH_NANOVDB -DWITH_OCIO -DWITH_OPENIMAGEDENOISE -DWITH_OPENSUBDIV -DWITH_OPENVDB -DWITH_OPENVDB_BLOSC -DWITH_OPTIX -DWITH_SYSTEM_PUGIXML -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -D__LITTLE_ENDIAN__ -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/../../extern/cuew/include -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/../atomic -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/.. -I/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../../sky/include -isystem /usr/include/OpenEXR -isystem /usr/include/Imath -isystem /opt/optix/include -isystem /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/extern/glog/include -isystem /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/extern/gflags/src -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wcomma-subscript -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wno-stringop-overread -Wno-stringop-overflow -Wimplicit-fallthrough=5 -Wundef -Wmissing-declarations -march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe -fopenmp -pipe -fPIC -funsigned-char -fno-strict-aliasing -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/"="" -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1_build/"="" -march=native -Wno-error=unused-macros -Wno-maybe-uninitialized -std=c++17 -MD -MT intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o -MF intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o.d -o intern/cycles/scene/CMakeFiles/cycles_scene.dir/light_tree.cpp.o -c /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/light_tree.cpp In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/immintrin.h:39, from /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/x86intrin.h:32, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../util/simd.h:25, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../util/types.h:23, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../util/math.h:27, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../kernel/types.h:23, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../scene/light.h:8, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../scene/light_tree.h:8, from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/light_tree.cpp:5: /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/smmintrin.h: In function ‘int ccl::fast_rint(float)’: /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/smmintrin.h:131:1: error: inlining failed in call to ‘always_inline’ ‘__m128 _mm_round_ss(__m128, __m128, int)’: target specific option mismatch 131 | _mm_round_ss (__m128 __D, __m128 __V, const int __M) | ^~~~~~~~~~~~ In file included from /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../kernel/types.h:24: /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../util/math_fast.h:69:21: note: called from here 69 | vec = _mm_round_ss(vec, vec, (_MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC)); | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/lib/gcc/x86_64-pc-linux-gnu/14/include/smmintrin.h:131:1: error: inlining failed in call to ‘always_inline’ ‘__m128 _mm_round_ss(__m128, __m128, int)’: target specific option mismatch 131 | _mm_round_ss (__m128 __D, __m128 __V, const int __M) | ^~~~~~~~~~~~ /var/tmp/portage/media-gfx/blender-4.2.1-r1/work/blender-4.2.1/intern/cycles/scene/../util/math_fast.h:69:21: note: called from here 69 | vec = _mm_round_ss(vec, vec, (_MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC)); | ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ from which appears that the Cycles code calls SSE4.1 intristics unconditionally. (Not totally unexpected seeing the upstream changes.) Well, I can confirm that USE="-cycles" blender is compilable, runs, functions, and does render with EEVEE so it _is_ somewhat usable... but where is fun in that? :D Hello everyone, I've faced a similar issue when I was trying to build Blender for an old machine with an AMD Athlon(tm) II X3 440 Processor. It turns out, Blender's CMake configuration overrides the -march from system CFLAGS/CXXFLAGS with -march=x86-64-v2 if SUPPORT_SSE42_BUILD is ON. * https://projects.blender.org/blender/blender/src/branch/main/build_files/cmake/macros.cmake#L552 * https://projects.blender.org/blender/blender/src/branch/main/CMakeLists.txt#L1546-L1548 And SUPPORT_SSE42_BUILD is ON even for old machines due to an issue with the TEST_SSE_SUPPORT macro in build_files/cmake/macros.cmake. * https://projects.blender.org/blender/blender/issues/134933 You may see this in the build log that JohnLM attached to this bug: > -- Performing Test SUPPORT_SSE42_BUILD > -- Performing Test SUPPORT_SSE42_BUILD - Success It led to the following configurations: > Compiler flags: > C -Wall -Werror=implicit-function-declaration -Wstrict-prototypes -Werror=return-type -Werror=vla -Wmissing-prototypes -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wlogical-op -Wundef -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Wformat-signedness -Wrestrict -Wno-stringop-overread -Wno-stringop-overflow -Wnonnull -Wabsolute-value -Wuninitialized -Wredundant-decls -Wshadow -Wimplicit-fallthrough=5 -Wno-error=unused-but-set-variable -march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe -DNDEBUG -march=x86-64-v2 -fopenmp -std=gnu11 -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/"="" -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/"="" > C++ -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wcomma-subscript -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wno-stringop-overread -Wno-stringop-overflow -Wimplicit-fallthrough=5 -Wundef -Wmissing-declarations -march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe -march=x86-64-v2 -fopenmp -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/"="" -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/"="" Please notice > -march=barcelona .* -march=x86-64-v2 I've managed to workaround overriding of the -march by adding "MYCMAKEARGS=-DSUPPORT_SSE42_BUILD=NO" to environment variables. It allowed me to build Blender 4.2.4 with USE="-cycles" as suggested here, but not Blender 4.3.2 since it has an additional CPU feature usage issue. |
Tried building Blender 4.2.1. With multiple tries the build invariably failed at [23/5395] cd /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern && /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/bin/makesdna /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_type_offsets.h /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_verify.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/makesdna/ FAILED: source/blender/makesdna/intern/dna.c source/blender/makesdna/intern/dna_type_offsets.h source/blender/makesdna/intern/dna_verify.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_type_offsets.h /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_verify.c cd /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern && /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/bin/makesdna /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_type_offsets.h /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern/dna_verify.c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/makesdna/ ninja: build stopped: subcommand failed. The build log completely fails to mention why, but eventually I found in syslog/journal that the makesdna executable has coredumped on SIGILL. Odd! I disassembled the crashing piece from the coredump, and: Dump of assembler code for function DNA_alias_maps: 0x0000558ac10f9024 <+100>: mov $0x5,%esi 0x0000558ac10f9029 <+105>: sete %r13b => 0x0000558ac10f902d <+109>: pinsrq $0x1,%rax,%xmm0 0x0000558ac10f9034 <+116>: lea 0xdff6(%rip),%rax # 0x558ac1107031 PINSRQ? Quick googling told me that it's a SSE4.1 instruction. Erm, my machine doesn't have SSE4.1 (which clearly explains the SIGILL). But why? Just a little higher in the build log I see the makesdna being built: [8/5395] /usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE_EXECINFO_H -DHAVE_MALLOC_STATS_H -DNDEBUG -DWITH_ASSERT_ABORT -DWITH_DNA_GHASH -DWITH_FREESTYLE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -D__LITTLE_ENDIAN__ -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/makesdna -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/source/blender/makesdna/intern -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/blenlib -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/imbuf -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/intern/atomic/. -I/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/intern/guardedalloc -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -Wuninitialized -Wredundant-decls -Wall -Wno-invalid-offsetof -Wno-sign-compare -Wlogical-op -Winit-self -Wmissing-include-dirs -Wno-div-by-zero -Wtype-limits -Werror=return-type -Wno-char-subscripts -Wno-unknown-pragmas -Wpointer-arith -Wunused-parameter -Wwrite-strings -Wundef -Wcomma-subscript -Wformat-signedness -Wrestrict -Wno-suggest-override -Wuninitialized -Wno-stringop-overread -Wno-stringop-overflow -Wimplicit-fallthrough=5 -Wundef -Wmissing-declarations -march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe -march=x86-64-v2 -fopenmp -pipe -fPIC -funsigned-char -fno-strict-aliasing -ffp-contract=off -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/"="" -fmacro-prefix-map="/var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1_build/"="" -Wno-maybe-uninitialized -std=c++17 -MD -MT source/blender/makesdna/intern/CMakeFiles/makesdna.dir/makesdna.cc.o -MF source/blender/makesdna/intern/CMakeFiles/makesdna.dir/makesdna.cc.o.d -o source/blender/makesdna/intern/CMakeFiles/makesdna.dir/makesdna.cc.o -c /var/tmp/portage/media-gfx/blender-4.2.1/work/blender-4.2.1/source/blender/makesdna/intern/makesdna.cc It gets -march=barcelona _and_ -march=x86-64-v2 ??? I reckon the latter took effect and compiled the binary with instructions that AMD Phenom does not support. So, an alternative bug title could be "Blender build disrespects my CFLAGS". Reproducible: Always Steps to Reproduce: 1. emerge -v blender:4.2 * on this machine :) Actual Results: Build fails with SIGILL running a tool (makesdna) built earlier in same build process. Expected Results: Build succeeds. # emerge --info Portage 3.0.66.1 (python 3.12.7-final-0, default/linux/amd64/23.0/systemd, gcc-14, glibc-2.40-r5, 6.6.62-gentoo x86_64) ================================================================= System uname: Linux-6.6.62-gentoo-x86_64-AMD_Phenom-tm-_9950_Quad-Core_Processor-with-glibc2.40 KiB Mem: 8147132 total, 3369216 free KiB Swap: 4194300 total, 3961596 free Timestamp of repository gentoo: Thu, 28 Nov 2024 18:15:00 +0000 Head commit of repository gentoo: 3daea3ee4c39c8111f36c8343307824e78fa2b9d Head commit of repository esteid: 8d0d789bb69d9ff08fad5aa62a9423613f1d3f63 Head commit of repository java: 60411eb30ee9d8214b0720a8be05a9dddaa44f80 Head commit of repository mv: 3172c70c07792e8389f2d5e1798528907b933937 Head commit of repository johnlm-overlay: cecab00a112a35439fec6b72ac66699c63eda71e sh bash 5.2_p37 ld GNU ld (Gentoo 2.42 p6) 2.42.0 distcc 3.4 x86_64-pc-linux-gnu [disabled] app-misc/pax-utils: 1.3.8::gentoo app-shells/bash: 5.2_p37::gentoo dev-build/autoconf: 2.13-r8::gentoo, 2.72-r1::gentoo dev-build/automake: 1.16.5-r2::gentoo dev-build/cmake: 3.30.5::gentoo dev-build/libtool: 2.4.7-r4::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: 2.7.18_p16-r2::gentoo, 3.12.7_p1::gentoo, 3.13.0::gentoo dev-lang/rust: 1.81.0-r100::gentoo sys-apps/baselayout: 2.17::gentoo sys-apps/sandbox: 2.39::gentoo sys-apps/systemd: 256.7::gentoo sys-devel/binutils: 2.42-r2::gentoo sys-devel/binutils-config: 5.5.2::gentoo sys-devel/clang: 18.1.8::gentoo sys-devel/gcc: 13.3.1_p20241115::gentoo, 14.2.1_p20241116::gentoo sys-devel/gcc-config: 2.11::gentoo sys-devel/lld: 18.1.8::gentoo sys-devel/llvm: 18.1.8-r1::gentoo sys-kernel/linux-headers: 6.6-r1::gentoo (virtual/os-headers) sys-libs/glibc: 2.40-r5::gentoo Repositories: cross-portage location: /usr/local/portage-crossdev masters: gentoo priority: 10 volatile: True gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.europe.gentoo.org/gentoo-portage priority: 25 volatile: True sync-rsync-extra-opts: sync-rsync-verify-metamanifest: yes sync-rsync-verify-max-age: 3 sync-rsync-verify-jobs: 1 esteid location: /var/lib/layman/esteid sync-type: git sync-uri: https://github.com/open-eid/gentoo.git masters: gentoo priority: 50 volatile: True java location: /var/lib/layman/java sync-type: git sync-uri: git://anongit.gentoo.org/proj/java.git masters: gentoo priority: 50 volatile: True mv location: /var/lib/layman/mv sync-type: git sync-uri: https://anongit.gentoo.org/git/user/mv.git masters: gentoo priority: 50 volatile: True johnlm-overlay location: /var/lib/layman/johnlm-overlay sync-type: git sync-uri: file:///home/johnlm/src/johnlm-overlay.git masters: gentoo priority: 60 volatile: True local-overlay location: /usr/local/portage masters: gentoo priority: 95 volatile: True Installed sets: @archivers, @major-bdeps ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="@FREE" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /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="-march=barcelona -mcx16 -fomit-frame-pointer -O2 -pipe" DISTDIR="/mnt/megadisk/system/tmp/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps=n --verbose-conflicts" 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" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg-live config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync merge-wait multilib-strict network-sandbox news noinfo nostrip 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" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_GB.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs" LEX="flex" LINGUAS="en en_GB lv" MAKEOPTS="-j4" 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="3dnow 3dnowext X a52 acl acpi amd64 bash-completion branding bzip2 cairo cet crypt css dbus dri dts evdev exif ffmpeg flac fontconfig g3dvl gallium gdbm gmp gnome gnome-keyring gstreamer gtk gtk3 gtkstyle gzip iconv jpeg kpathsea libnotify libtirpc mad matroska mmx mmxext mp3 multilib ncurses nls ogg openexr opengl openmp opus oss oss4 pam pcre png policykit qt3support readline seccomp smp sndfile sse sse2 sse3 sse4a ssl svg systemd test-rust threads tiff truetype udev unicode vdpau vorbis x264 xa xattr xcb xcomposite xinerama xml xv xvid xvmc 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" CAMERAS="ptp2 kodak_ez200" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="3dnow 3dnowext mmx mmxext popcnt sse sse2 sse3 sse4a" 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 2-2" GUILE_TARGETS="3-0" INPUT_DEVICES="evdev" KERNEL="linux" L10N="en en-GB lv" 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="nvidia" 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, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, 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