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-rw-r--r--js/src/jit-test/tests/gc/bug-1692221.js39
1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1692221.js b/js/src/jit-test/tests/gc/bug-1692221.js
new file mode 100644
index 0000000000..6300788ad9
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1692221.js
@@ -0,0 +1,39 @@
+// |jit-test| allow-oom; skip-if: !('oomAtAllocation' in this)
+
+// Test TenuredChunk::decommitFreeArenasWithoutUnlocking updates chunk
+// metadata correctly. The data is checked by assertions so this test is about
+// exercising the code in question.
+
+function allocateGarbage() {
+ gc();
+ for (let j = 0; j < 100000; j++) {
+ Symbol();
+ }
+}
+
+function collectUntilDecommit() {
+ startgc(1);
+ while (gcstate() != "NotActive" && gcstate() != "Decommit") {
+ gcslice(1000);
+ }
+}
+
+function triggerSyncDecommit() {
+ reportLargeAllocationFailure(1);
+}
+
+gczeal(0);
+
+// Normally we skip decommit if GCs are happening frequently. Disable that for
+// this test
+gcparam("highFrequencyTimeLimit", 0);
+
+allocateGarbage();
+collectUntilDecommit();
+triggerSyncDecommit();
+
+allocateGarbage();
+collectUntilDecommit();
+oomAtAllocation(10);
+triggerSyncDecommit();
+resetOOMFailure();