gh actions: fix msan error if memory layout is incompatible on linux

see google/oss-fuzz#11703 and upstream fix llvm/llvm-project#85142
Chilledheart · Mar 18, 2024 · 7f9e4dc · 7f9e4dc
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diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -157,6 +157,9 @@ commands:
     steps:
       - run:
           command: |
+            # TODO remove this once upstream fix is available
+            # msan fix is here https://github.com/llvm/llvm-project/pull/85142
+            sudo sysctl -w vm.mmap_rnd_bits=28
             ./build/yass_test -logtostderr -v 1 --gtest_shuffle --gtest_repeat=5 --gtest_throw_on_failure
             # somehow inside the container DNS hosts file resolves localhost to 127.0.0.1 only not ::1
             # due to the incompleteness

diff --git a/.github/workflows/sanitizers.yml b/.github/workflows/sanitizers.yml
@@ -75,6 +75,11 @@ jobs:
             ${{ matrix.sanitizer.cmake_options }} ..
           ninja yass_test
           cd ..
+      - name: Memory layout fix for old clang
+        run: |
+          # TODO remove this once upstream fix is available
+          # msan fix is here https://github.com/llvm/llvm-project/pull/85142
+          sudo sysctl -w vm.mmap_rnd_bits=28
       - name: Run tests
         run: |
           cd build