diff --git a/kernel/arch/sh/configs/idl4k_defconfig b/kernel/arch/sh/configs/idl4k_defconfig
index 51f35c9f..4509c743 100644
--- a/kernel/arch/sh/configs/idl4k_defconfig
+++ b/kernel/arch/sh/configs/idl4k_defconfig
@@ -366,7 +366,7 @@ CONFIG_ENTRY_OFFSET=0x00001000
 # CONFIG_UBC_WAKEUP is not set
 # CONFIG_CMDLINE_OVERWRITE is not set
 CONFIG_CMDLINE_EXTEND=y
-CONFIG_CMDLINE="console=ttyAS0,115200 bigphysarea=20000"
+CONFIG_CMDLINE="console=ttyAS0,115200 bigphysarea=32000"
 
 #
 # Bus options
diff --git a/patches/kernel.config b/patches/kernel.config
index 51f35c9f..4509c743 100644
--- a/patches/kernel.config
+++ b/patches/kernel.config
@@ -366,7 +366,7 @@ CONFIG_ENTRY_OFFSET=0x00001000
 # CONFIG_UBC_WAKEUP is not set
 # CONFIG_CMDLINE_OVERWRITE is not set
 CONFIG_CMDLINE_EXTEND=y
-CONFIG_CMDLINE="console=ttyAS0,115200 bigphysarea=20000"
+CONFIG_CMDLINE="console=ttyAS0,115200 bigphysarea=32000"
 
 #
 # Bus options