diff --git a/configs/lc823450-xgevk/krndis/defconfig b/configs/lc823450-xgevk/krndis/defconfig
index dc55421e8b2..1ca7557a224 100644
--- a/configs/lc823450-xgevk/krndis/defconfig
+++ b/configs/lc823450-xgevk/krndis/defconfig
@@ -58,9 +58,9 @@ CONFIG_I2CTOOL_MAXBUS=1
 CONFIG_I2C_RESET=y
 CONFIG_I2S=y
 CONFIG_INTELHEX_BINARY=y
-CONFIG_IOB_BUFSIZE=384
-CONFIG_IOB_NBUFFERS=128
-CONFIG_IOB_NCHAINS=64
+CONFIG_IOB_BUFSIZE=128
+CONFIG_IOB_NBUFFERS=64
+CONFIG_IOB_NCHAINS=10
 CONFIG_LC823450_I2C0=y
 CONFIG_LC823450_I2C1=y
 CONFIG_LC823450_I2S0=y
@@ -153,6 +153,8 @@ CONFIG_RNDIS=y
 CONFIG_RTC=y
 CONFIG_RTC_HIRES=y
 CONFIG_SCHED_ATEXIT=y
+CONFIG_SCHED_CHILD_STATUS=y
+CONFIG_SCHED_HAVE_PARENT=y
 CONFIG_SCHED_HPWORK=y
 CONFIG_SCHED_HPWORKPERIOD=50000
 CONFIG_SCHED_HPWORKPRIORITY=192