Pratik Mankawde f13d17165a fix: Switch GCC ASAN to -mcmodel=medium and reduce TSAN build parallelism ...

- Change -mcmodel=large to -mcmodel=medium for GCC ASAN builds. The large
  model inflates code size with 64-bit absolute addresses, pushing the
  binary past the 2GB limit where GCC's pre-compiled CRT startup code
  (crtstuff.c) can't reach data sections with 32-bit relocations.
  Medium model keeps code compact (CRT-compatible) while allowing data
  beyond 2GB.

- Add nproc_subtract=20 for TSAN builds to reduce build parallelism.
  TSAN instrumentation significantly increases per-compilation-unit memory
  usage, causing OOM on CI runners with high parallelism.

- Plumb nproc_subtract from the CI matrix through to the build workflow
  so individual configurations can control their parallelism.

- Temporarily restrict CI matrix to only the two previously-failing
  configs (gcc-13 asan-ubsan, clang-20 tsan-ubsan) to validate fixes
  without burning CI resources on passing configs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-19 15:22:23 +00:00

..

lockfile

chore: Make conan lockfile generation commands into a script (#6085)

2025-11-26 18:43:14 +00:00

profiles

fix: Switch GCC ASAN to -mcmodel=medium and reduce TSAN build parallelism

2026-03-19 15:22:23 +00:00

global.conf

ci: Use nproc-2 to set parallelism for builds and tests (#5939)

2025-10-29 00:07:09 +00:00