diff --git a/repos/os/run/blk_cache.run b/repos/os/run/blk_cache.run
index c9883c7096..e635eeeb80 100644
--- a/repos/os/run/blk_cache.run
+++ b/repos/os/run/blk_cache.run
@@ -65,6 +65,6 @@ build_boot_image { core init timer test-blk-srv blk_cache test-blk-cli }
 #
 # Qemu
 #
-append qemu_args " -nographic -m 64 "
+append qemu_args " -nographic -m 96 "
 
 run_genode_until "Tests finished successfully.*\n" 60
diff --git a/repos/os/run/fault_detection.run b/repos/os/run/fault_detection.run
index e6c300b3a6..516e11d430 100644
--- a/repos/os/run/fault_detection.run
+++ b/repos/os/run/fault_detection.run
@@ -68,6 +68,6 @@ build_boot_image $boot_modules
 # Execute test case
 #
 
-append qemu_args "-nographic -m 64"
+append qemu_args "-nographic -m 96"
 
 run_genode_until "--- finished fault_detection test ---.*\n" 30
diff --git a/repos/os/run/resource_yield.run b/repos/os/run/resource_yield.run
index d153043120..f1671db52b 100644
--- a/repos/os/run/resource_yield.run
+++ b/repos/os/run/resource_yield.run
@@ -31,6 +31,6 @@ install_config {
 
 build_boot_image "core init timer test-resource_yield"
 
-append qemu_args "-nographic -m 64"
+append qemu_args "-nographic -m 96"
 
 run_genode_until {--- test-resource_yield finished ---\s*\n} 50
diff --git a/repos/os/run/tar_rom.run b/repos/os/run/tar_rom.run
index 562d8a2a1a..f164544bb8 100644
--- a/repos/os/run/tar_rom.run
+++ b/repos/os/run/tar_rom.run
@@ -43,7 +43,7 @@ install_config {
 		<provides><service name="Timer"/></provides>
 	</start>
 	<start name="tar_rom">
-		<resource name="RAM" quantum="5200K"/>
+		<resource name="RAM" quantum="6M"/>
 		<provides><service name="ROM"/></provides>
 		<config>
 			<archive name="archive.tar"/>
@@ -75,7 +75,7 @@ exec sh -c "cd bin; tar cfh archive.tar test-timer"
 
 build_boot_image "core init timer tar_rom archive.tar"
 
-append qemu_args "-nographic -m 64"
+append qemu_args "-nographic -m 96"
 
 run_genode_until "--- timer test ---" 10