diff --git a/arch/um/defconfig b/arch/um/defconfig
index f609edede065..86db2862f222 100644
--- a/arch/um/defconfig
+++ b/arch/um/defconfig
@@ -77,7 +77,7 @@ CONFIG_LD_SCRIPT_DYN=y
 CONFIG_NET=y
 CONFIG_BINFMT_ELF=y
 CONFIG_BINFMT_MISC=m
-# CONFIG_HOSTFS is not set
+CONFIG_HOSTFS=y
 # CONFIG_HPPFS is not set
 CONFIG_MCONSOLE=y
 CONFIG_MAGIC_SYSRQ=y
@@ -188,7 +188,7 @@ CONFIG_CON_CHAN="xterm"
 CONFIG_SSL_CHAN="pts"
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_LEGACY_PTY_COUNT=32
 # CONFIG_WATCHDOG is not set
 CONFIG_UML_SOUND=m
 CONFIG_SOUND=m
@@ -508,7 +508,7 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
-CONFIG_DEBUG_SLAB=y
+# CONFIG_DEBUG_SLAB is not set
 # CONFIG_DEBUG_SLAB_LEAK is not set
 # CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_SPINLOCK is not set