diff --git a/compiler/testData/codegen/box/multiplatform/k2/basic/expectProperty.kt b/compiler/testData/codegen/box/multiplatform/k2/basic/expectProperty.kt
index dbb7bb3fd4b..b039cadb610 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/basic/expectProperty.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/basic/expectProperty.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/constructor.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/constructor.kt
index 67c0738756e..eeec3835b8b 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/constructor.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/constructor.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/delegatedExpectedInterface.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/delegatedExpectedInterface.kt
index 19a1cdbdabb..bfdb603f5e9 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/delegatedExpectedInterface.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/delegatedExpectedInterface.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/extensionReceiverValue.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/extensionReceiverValue.kt
index f1c3ee477e1..303e47bfb3b 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/extensionReceiverValue.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/extensionReceiverValue.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/function.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/function.kt
index 4c6b08fba91..44d585b41a5 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/function.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/function.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromCommonClass.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromCommonClass.kt
index 3b10d633d49..631c8b83811 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromCommonClass.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromCommonClass.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedClass.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedClass.kt
index 8f9185a0989..5b8dd387df0 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedClass.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedClass.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedInterface.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedInterface.kt
index 0e5b30d9885..345cffe8142 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedInterface.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedInterface.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedMethod.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedMethod.kt
index 64593ef9cc0..3faeee15149 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedMethod.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedFromExpectedMethod.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedInExpectedDeclarations.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedInExpectedDeclarations.kt
index 589bfa8dd69..26066d44a70 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedInExpectedDeclarations.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedInExpectedDeclarations.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedViaAnotherInterfaceIndirectly.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedViaAnotherInterfaceIndirectly.kt
index b5102ecdd85..91b8e051cea 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedViaAnotherInterfaceIndirectly.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inheritedViaAnotherInterfaceIndirectly.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inlineFunctionWithDefaultLambda.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inlineFunctionWithDefaultLambda.kt
index e3dca386689..1777e13adc6 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inlineFunctionWithDefaultLambda.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/inlineFunctionWithDefaultLambda.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23239.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23239.kt
index 1737ce86e9b..2c31d745e14 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23239.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23239.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23739.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23739.kt
index f5da314ced5..390d535d9e2 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23739.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/kt23739.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/parametersInArgumentValues.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/parametersInArgumentValues.kt
index 3fd684a1e24..4afe40e70e0 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/parametersInArgumentValues.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/parametersInArgumentValues.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 
 // MODULE: common
 // FILE: common.kt
diff --git a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/typeAlias.kt b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/typeAlias.kt
index 55ea09cb98b..e12ed3a77c7 100644
--- a/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/typeAlias.kt
+++ b/compiler/testData/codegen/box/multiplatform/k2/defaultArguments/typeAlias.kt
@@ -1,5 +1,5 @@
 // !LANGUAGE: +MultiPlatformProjects
-// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6
+// IGNORE_BACKEND_K1: JVM, JVM_IR, JS, JS_IR, JS_IR_ES6, NATIVE
 // WITH_STDLIB
 
 // MODULE: common
diff --git a/kotlin-native/backend.native/tests/build.gradle b/kotlin-native/backend.native/tests/build.gradle
index a2d0b4d0218..c267c009913 100644
--- a/kotlin-native/backend.native/tests/build.gradle
+++ b/kotlin-native/backend.native/tests/build.gradle
@@ -4945,7 +4945,7 @@ if (PlatformInfo.isAppleTarget(project)) {
     }
 
     interopTest("interop_objc_smoke_noopgc") {
-        enabled = isNoopGC
+        enabled = isNoopGC && !isK2(project) // KT-56030
         source = "interop/objc/smoke_noopgc.kt"
         interop = 'objcSmoke'
         doBeforeBuild {
@@ -6126,6 +6126,7 @@ tasks.register("llvm_variant_dev", KonanDriverTest) {
     // so it is hard to reliably detect LLVM variant for these targets.
     disabled = isAppleTarget(project)
         || isAggressiveGC // No need to test with different GC schedulers
+        || isK2(project) // KT-56855
     flags = [
             "-Xllvm-variant=dev",
             "-Xverbose-phases=ObjectFiles"