diff --git a/boards/arm/stm32/stm32f4discovery/README.txt b/boards/arm/stm32/stm32f4discovery/README.txt
index 0f1c63d324..3cbe2596a2 100644
--- a/boards/arm/stm32/stm32f4discovery/README.txt
+++ b/boards/arm/stm32/stm32f4discovery/README.txt
@@ -2228,6 +2228,14 @@ Configuration Sub-directories
     In the main NSH console (in USART2) type: "pts_test &". It will create a
     new console in UART3. Just press ENTER and start typing commands on it.
 
+  sporadic
+  --------
+
+    This is an NSH configuration that includes apps/testing/ostest as a builtin.
+    The sporadic scheduler is enabled and the purpose of this configuration is
+    to investigate an error in that scheduler.  See Issue 2035.  The serial
+    console is on USART6.
+
   testlibcxx
   ----------
 
diff --git a/boards/arm/stm32/stm32f4discovery/configs/sporadic/defconfig b/boards/arm/stm32/stm32f4discovery/configs/sporadic/defconfig
new file mode 100644
index 0000000000..2acf3c2913
--- /dev/null
+++ b/boards/arm/stm32/stm32f4discovery/configs/sporadic/defconfig
@@ -0,0 +1,52 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_CMDPARMS is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="stm32f4discovery"
+CONFIG_ARCH_BOARD_STM32F4_DISCOVERY=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP="stm32"
+CONFIG_ARCH_CHIP_STM32=y
+CONFIG_ARCH_CHIP_STM32F407VG=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARD_LATE_INITIALIZE=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_FS_PROCFS=y
+CONFIG_HOST_WINDOWS=y
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MAX_TASKS=16
+CONFIG_MM_REGIONS=2
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=114688
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_SCHED_SPORADIC=y
+CONFIG_SCHED_SPORADIC_MAXREPL=5
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=3
+CONFIG_START_YEAR=2021
+CONFIG_STM32_JTAG_SW_ENABLE=y
+CONFIG_STM32_PWR=y
+CONFIG_STM32_SPI1=y
+CONFIG_STM32_USART6=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TESTING_OSTEST=y
+CONFIG_USART6_RXBUFSIZE=128
+CONFIG_USART6_SERIAL_CONSOLE=y
+CONFIG_USART6_TXBUFSIZE=128
+CONFIG_USER_ENTRYPOINT="nsh_main"