Source: ggml Version: 0.0~git20250712.d62df60-4 Severity: important X-Debbugs-Cc: [email protected] User: [email protected] Usertags: riscv64 Control: affects -1 llama.cpp
Dear maintainer, ggml enables vector instructions by default on riscv64. This is currently not part of the ISA baseline in Debian and the build daemons do not have support for them. This causes an autopkgtest failure: | 178s autopkgtest [03:26:52]: test libggml0-backend-blas: /usr/libexec/ggml/runtests | 178s autopkgtest [03:26:52]: test libggml0-backend-blas: [----------------------- | 179s dpkg-architecture: warning: cannot determine CC system type, falling back to default (native compilation) | 179s load_backend: loaded BLAS backend from /usr/lib/riscv64-linux-gnu/ggml/backends0/libggml-blas.so | 179s load_backend: loaded CPU backend from /usr/lib/riscv64-linux-gnu/ggml/backends0/libggml-cpu.so | 179s Illegal instruction This also causes llama.cpp to FTBFS. The patch below disables vector instructions on riscv64 and fix the issues: --- ggml-0.0~git20250712.d62df60/debian/rules +++ ggml-0.0~git20250712.d62df60/debian/rules @@ -46,6 +46,11 @@ endif endif +# Do not enable vector instructions on riscv64, not part of the baseline +ifeq ($(DEB_HOST_ARCH),riscv64) +CMAKE_OPTS += -DGGML_RVV=OFF +endif + endif # pkg.ggml.cuda Regards Aurelien
