diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 01ad7a1b..f61c43e0 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -113,6 +113,11 @@ jobs:
         CXX: clang++
         BuildType: debug-tsan-clang-cxx
         cmakeExtraArgs: -DCMAKE_BUILD_TYPE=RelWithDebInfo -DMI_USE_CXX=ON -DMI_DEBUG_TSAN=ON
+      Debug Guarded Clang:
+        CC: clang
+        CXX: clang
+        BuildType: debug-guarded-clang
+        cmakeExtraArgs: -DCMAKE_BUILD_TYPE=RelWithDebInfo -DMI_DEBUG_FULL=ON -DMI_DEBUG_GUARDED=ON
       
   steps:
   - task: CMake@1
@@ -124,6 +129,8 @@ jobs:
   - script: ctest --verbose --timeout 180
     workingDirectory: $(BuildType)
     displayName: CTest
+    env: 
+      MIMALLOC_DEBUG_GUARDED_MAX: 1024
 #  - upload: $(Build.SourcesDirectory)/$(BuildType)
 #    artifact: mimalloc-ubuntu-$(BuildType)
 
diff --git a/test/test-stress.c b/test/test-stress.c
index 1e144bd0..156f9167 100644
--- a/test/test-stress.c
+++ b/test/test-stress.c
@@ -33,6 +33,10 @@ static int ITER    = 200;
 static int THREADS = 8;       
 static int SCALE   = 25;
 static int ITER    = 20;
+#elif defined(MI_DEBUG_GUARDED) // with debug guard pages reduce parameters to stay within the azure pipeline limits
+static int THREADS = 8;       
+static int SCALE   = 10;
+static int ITER    = 10;
 #else
 static int THREADS = 32;      // more repeatable if THREADS <= #processors
 static int SCALE   = 25;      // scaling factor