diff --git a/build/config/compiler/BUILD.gn b/build/config/compiler/BUILD.gn
index 52043c8f98e..1f513f44315 100644
--- a/build/config/compiler/BUILD.gn
+++ b/build/config/compiler/BUILD.gn
@@ -745,7 +745,7 @@ config("no_optimize") {
     ldflags = common_optimize_on_ldflags
   } else {
     cflags = [
-      "-O1",
+      "-O2",
       "-fdata-sections",
       "-ffunction-sections",
     ]
diff --git a/runtime/BUILD.gn b/runtime/BUILD.gn
index e7c13da6f72..50ae8ce616f 100644
--- a/runtime/BUILD.gn
+++ b/runtime/BUILD.gn
@@ -163,7 +163,7 @@ config("dart_config") {
     ]
 
     if (dart_debug) {
-      cflags += [ "-O1" ]
+      cflags += [ "-O2" ]
     } else {
       cflags += [ "-O3" ]
     }
diff --git a/runtime/tests/vm/vm.status b/runtime/tests/vm/vm.status
index 0a2934ac739..60dc0a98f29 100644
--- a/runtime/tests/vm/vm.status
+++ b/runtime/tests/vm/vm.status
@@ -31,6 +31,23 @@ cc/Sleep: Pass, Fail
 dart/data_uri_import_test/none: SkipByDesign
 
 [ $mode == debug ]
+cc/Profiler_ArrayAllocation: Fail # 28304
+cc/Profiler_BasicSourcePosition: Fail # 28304
+cc/Profiler_BasicSourcePositionOptimized: Fail # 28304
+cc/Profiler_BinaryOperatorSourcePosition: Fail # 28304
+cc/Profiler_BinaryOperatorSourcePositionOptimized: Fail # 28304
+cc/Profiler_ChainedSamples: Fail # 28304
+cc/Profiler_ClosureAllocation: Fail # 28304
+cc/Profiler_CodeTicks: Fail # 28304
+cc/Profiler_ContextAllocation: Fail # 28304
+cc/Profiler_FunctionInline: Fail # 28304
+cc/Profiler_FunctionTicks: Fail # 28304
+cc/Profiler_SourcePosition: Fail # 28304
+cc/Profiler_SourcePositionOptimized: Fail # 28304
+cc/Profiler_ToggleRecordAllocation: Fail # 28304
+cc/Profiler_TrivialRecordAllocation: Fail # 28304
+cc/Profiler_TypedArrayAllocation: Fail # 28304
+
 # This is a benchmark that is not informative in debug mode.
 cc/CorelibIsolateStartup: Skip
 # Negative tests of VerifiedMemory should crash iff in DEBUG mode.