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build: v6.2.0 — disable AVX-512 autovec, fix v6.1.9 SIGILL

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v6.1.9 was built on a GitHub Actions EPYC 7763 runner (AVX-512 capable)
and contained 741 vpbroadcastq EVEX instructions in inlined libstdc++
std::string paths. The resulting binary crashed with SIGILL on every
production node: KVM EPYC (DNS2), Ryzen 5 3600 (SAMI-PC), and any
non-x86_64 node.

cmake/AddCompilerFlags.cmake already set -march=x86-64-v2 -mtune=generic
but GCC 11.4 + libstdc++ inlining still autovectorized some paths to
AVX-512. The fix adds an explicit -mno-avx512f -mno-avx512* block
inside CMAKE_X86_64_BASELINE so the build cannot leak AVX-512 regardless
of the build host's capabilities.

Carries forward the v6.1.9 staking-selfheal fix (f69f087) unchanged.
Bump version 6.1.9 -> 6.2.0 to reflect the build-system change.

See references/avx-512-sigill-build-fix.md for the full diagnosis
recipe and the verification steps.
This commit is contained in:
Sami Ahmed
2026-08-01 13:35:54 -07:00
parent 668c64276f
commit 8a48b308a8
14 changed files with 242 additions and 23 deletions
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packaging/docker/docker-compose.yml
+1 -1
View File
@@ -3,7 +3,7 @@ version: "3.8"
services:
trianglesd:
build: .
image: cryptographic-triangles/trianglesd:6.1.7
image: cryptographic-triangles/trianglesd:6.2.0
container_name: trianglesd
restart: unless-stopped
ports: