Chang econfig agian

Author: pedrovgs

scripts/build-and-test-wasm.sh

@@ -185,15 +185,26 @@ run_tests() {
     # 2. async-stack-size (64MB): Stack for async operations. MUST be larger than
     #    max-wasm-stack. XCTest uses async/await extensively, and swift_task_switch
     #    operations during test execution and teardown require adequate async stack.
-    # 3. max-memory-size (1GB): Linear memory limit for heap allocations.
+    # 3. max-memory-size (4GB): Linear memory limit for heap allocations. Set high
+    #    to allow Swift runtime metadata tables to grow as needed.
+    # 4. pooling-allocator=n: Disable pooling allocator which has separate memory
+    #    limits that can conflict with -W max-memory-size settings.
+    # 5. memory-reservation (4GB): Reserve enough virtual memory upfront to avoid
+    #    memory remapping issues that can cause Swift runtime metadata corruption.
+    # 6. memory-may-move=n: Prevent linear memory from being moved in host address
+    #    space. This is critical for Swift runtime which caches pointers to metadata.
     WASMTIME_FLAGS="--dir ."
+    WASMTIME_FLAGS="$WASMTIME_FLAGS -O pooling-allocator=n"
+    WASMTIME_FLAGS="$WASMTIME_FLAGS -O memory-reservation=4294967296"
+    WASMTIME_FLAGS="$WASMTIME_FLAGS -O memory-may-move=n"
     WASMTIME_FLAGS="$WASMTIME_FLAGS -W max-wasm-stack=33554432"
     WASMTIME_FLAGS="$WASMTIME_FLAGS -W async-stack-size=67108864"
-    WASMTIME_FLAGS="$WASMTIME_FLAGS -W max-memory-size=1073741824"
+    WASMTIME_FLAGS="$WASMTIME_FLAGS -W max-memory-size=4294967296"
     if echo "$SWIFT_SDK_NAME" | grep -q "threads"; then
         WASMTIME_FLAGS="$WASMTIME_FLAGS --wasm threads=y --wasi threads=y"
     fi
 
+    echo "🔧 Wasmtime flags: $WASMTIME_FLAGS"
     wasmtime run $WASMTIME_FLAGS "$TEST_BINARY"
     echo ""
 }