From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Tue, 12 Mar 2024 13:49:55 +0000 (+0100)
Subject: ci: reduce ASLR entropy
X-Git-Tag: v256-rc1~564
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7c7498de814b1e9825b43c28e307a7f0af8ffd2;p=thirdparty%2Fsystemd.git

ci: reduce ASLR entropy

The latest GH Action runners started using 32-bit entropy for ASLR,
which makes it incompatible with llvm-14. This was fixed in later llvm
releases, but these aren't available on Ubuntu Jammy (22.04). Let's
reduce the ASLR entropy to 28-bit, which should make llvm happy again,
until the issue is resolved.

See: https://github.com/actions/runner-images/issues/9491
---

diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index f91ac030663..95d993ec421 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -34,5 +34,8 @@ jobs:
     steps:
       - name: Repository checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      # FIXME: drop once https://github.com/actions/runner-images/issues/9491  is resolved
+      - name: Reduce ASLR entropy
+        run: sudo sysctl -w vm.mmap_rnd_bits=28
       - name: Build check
         run: .github/workflows/build_test.sh
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
index d2164cc5763..2c0cbba356e 100644
--- a/.github/workflows/unit_tests.yml
+++ b/.github/workflows/unit_tests.yml
@@ -31,6 +31,9 @@ jobs:
     steps:
       - name: Repository checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      # FIXME: drop once https://github.com/actions/runner-images/issues/9491  is resolved
+      - name: Reduce ASLR entropy
+        run: sudo sysctl -w vm.mmap_rnd_bits=28
       - name: Install build dependencies
         run: |
           # Drop XDG_* stuff from /etc/environment, so we don't get the user