diff --git a/arch/arm/configs/rk29_phonesdk_defconfig b/arch/arm/configs/rk29_phonesdk_defconfig
index 0f41baf919bb..978a6bcc8b3f 100755
--- a/arch/arm/configs/rk29_phonesdk_defconfig
+++ b/arch/arm/configs/rk29_phonesdk_defconfig
@@ -51,7 +51,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_RCU_FANOUT_EXACT is not set
 # CONFIG_TREE_RCU_TRACE is not set
 # CONFIG_IKCONFIG is not set
-CONFIG_LOG_BUF_SHIFT=17
+CONFIG_LOG_BUF_SHIFT=19
 CONFIG_CGROUPS=y
 CONFIG_CGROUP_DEBUG=y
 # CONFIG_CGROUP_NS is not set