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-rw-r--r--nix/libstore/build.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index e8259aa4e8..54555b92d7 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -2154,6 +2154,12 @@ void DerivationGoal::runChild()
determinism. */
int cur = personality(0xffffffff);
if (cur != -1) personality(cur | ADDR_NO_RANDOMIZE);
+
+ /* Ask the kernel to eagerly kill us & our children if it runs out of
+ memory, regardless of blame, to preserve ‘real’ user data & state. */
+ try {
+ writeFile("/proc/self/oom_score_adj", "1000"); // 100%
+ } catch (...) { ignoreException(); }
#endif
/* Fill in the environment. */