linguini1 opened a new issue, #3513:
URL: https://github.com/apache/nuttx-apps/issues/3513
### Description / Steps to reproduce the issue
Despite what is reported in the docs, this init.rc file won't work:
```
on boot
start console
sleep 1
service console sh
class core
restart_period 1000
```
With debug output, it specifically fails on line 4 (empty line). When this
line is removed, it succeeds.
### On which OS does this issue occur?
[OS: Linux]
### What is the version of your OS?
Linux 7.0.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 17 May 2026 17:23:07 +0000
x86_64 GNU/Linux
### NuttX Version
master
### Issue Architecture
[Arch: all]
### Issue Area
[Area: System]
### Host information
```
NuttX configuration options:
CONFIG_EXPERIMENTAL=y
CONFIG_HOST_LINUX=y
CONFIG_APPS_DIR="../apps"
CONFIG_BASE_DEFCONFIG="sim:nsh-dirty"
CONFIG_BUILD_FLAT=y
CONFIG_OUTPUT_STRIP_PATHS=y
CONFIG_ARCH_HAVE_MATH_H=y
CONFIG_ARCH_HAVE_SETJMP=y
CONFIG_ARCH_SETJMP_H=y
CONFIG_ARCH_NONE_DEBUG_H=y
CONFIG_FORTIFY_SOURCE=0
CONFIG_NDEBUG=y
CONFIG_DEBUG_ALERT=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_ERROR=y
CONFIG_DEBUG_WARN=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_ASSERTIONS_EXPRESSION=y
CONFIG_DEBUG_ASSERTIONS_FILENAME=y
CONFIG_ARCH_HAVE_STACKCHECK=y
CONFIG_STACKCHECK_MARGIN=-1
CONFIG_STACK_USAGE_WARNING=0
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEBUG_SYMBOLS_LEVEL="-g"
CONFIG_ARCH_HAVE_CUSTOMOPT=y
CONFIG_DEBUG_NOOPT=y
CONFIG_LTO_NONE=y
CONFIG_DEBUG_OPT_UNUSED_SECTIONS=y
CONFIG_DEBUG_LINK_MAP=y
CONFIG_ARCH_SIM=y
CONFIG_ARCH="sim"
CONFIG_ARCH_CHIP="sim"
CONFIG_HOST_X86_64=y
CONFIG_SIM_TOOLCHAIN_GCC=y
CONFIG_SIM_X8664_SYSTEMV=y
CONFIG_SIM_WALLTIME_SIGNAL=y
CONFIG_SIM_WALLTIME_RATIO=100
CONFIG_SIM_LOOP_INTERVAL=10
CONFIG_SIM_STACKSIZE_ADJUSTMENT=65536
CONFIG_SIM_HOSTFS=y
CONFIG_SIM_OFFLOAD_NUM_BUFFERS=2
CONFIG_SIM_OFFLOAD_BUFFER_NUMBYTES=32767
CONFIG_SIM_UART_DMA=y
CONFIG_SIM_UART_NUMBER=0
CONFIG_SIM_CUSTOM_DATA_SECTION=""
CONFIG_ARCH_TOOLCHAIN_GNU=y
CONFIG_ARCH_TOOLCHAIN_GCC=y
CONFIG_ARCH_64BIT=y
CONFIG_ARCH_HAVE_TEXT_HEAP=y
CONFIG_ARCH_HAVE_MULTICPU=y
CONFIG_ARCH_HAVE_FORK=y
CONFIG_ARCH_HAVE_POWEROFF=y
CONFIG_ARCH_HAVE_TESTSET=y
CONFIG_ARCH_HAVE_RTC_SUBSECONDS=y
CONFIG_ARCH_HAVE_SYSCALL_HOOKS=y
CONFIG_ARCH_HAVE_BACKTRACE=y
CONFIG_ARCH_HAVE_CPUINFO=y
CONFIG_ARCH_CPUINFO_FREQ_KHZ=0
CONFIG_ARCH_HAVE_TCBINFO=y
CONFIG_NCPUS=1
CONFIG_BOARD_LOOPSPERMSEC=0
CONFIG_BOOT_RUNFROMEXTSRAM=y
CONFIG_RAM_START=0x0
CONFIG_RAM_SIZE=0
CONFIG_ARCH_BOARD_SIM=y
CONFIG_ARCH_BOARD="sim"
CONFIG_ARCH_HAVE_BUTTONS=y
CONFIG_ARCH_HAVE_IRQBUTTONS=y
CONFIG_BOARD_CRASHDUMP_NONE=y
CONFIG_BOARDCTL=y
CONFIG_BOARDCTL_POWEROFF=y
CONFIG_BOARDCTL_MKRD=y
CONFIG_BOARDCTL_APP_SYMTAB=y
CONFIG_BOARD_MEMORY_RANGE=""
CONFIG_DISABLE_OS_API=y
CONFIG_ARCH_HAVE_TICKLESS=y
CONFIG_USEC_PER_TICK=10000
CONFIG_TIMER_ADJUST_USEC=0
CONFIG_ARCH_HAVE_TIMEKEEPING=y
CONFIG_START_YEAR=2008
CONFIG_START_MONTH=6
CONFIG_START_DAY=1
CONFIG_PREALLOC_TIMERS=8
CONFIG_IRQ_NWORKS=8
CONFIG_IRQ_WORK_SECTION=""
CONFIG_IRQ_WORK_STACKSIZE=2048
CONFIG_INIT_ENTRY=y
CONFIG_INIT_ARGS=""
CONFIG_INIT_STACKSIZE=2048
CONFIG_INIT_PRIORITY=100
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_ENTRYNAME="nsh_main"
CONFIG_ETC_ROMFS=y
CONFIG_ETC_ROMFSMOUNTPT="/etc"
CONFIG_ETC_ROMFSDEVNO=1
CONFIG_ETC_ROMFSSECTSIZE=64
CONFIG_ETC_FATDEVNO=2
CONFIG_ETC_FATSECTSIZE=512
CONFIG_ETC_FATNSECTORS=1024
CONFIG_ETC_FATMOUNTPT="/tmp"
CONFIG_RR_INTERVAL=0
CONFIG_TASK_NAME_SIZE=31
CONFIG_SCHED_HAVE_PARENT=y
CONFIG_SCHED_CHILD_STATUS=y
CONFIG_PREALLOC_CHILDSTATUS=0
CONFIG_SCHED_WAITPID=y
CONFIG_PTHREAD_MUTEX_BOTH=y
CONFIG_PTHREAD_MUTEX_DEFAULT_UNSAFE=y
CONFIG_PTHREAD_MUTEX_DEFAULT_PRIO_NONE=y
CONFIG_SCHED_CPULOAD_NONE=y
CONFIG_SCHED_CPULOAD_TICKSPERSEC=100
CONFIG_SCHED_PROFILE_TICKSPERSEC=1000
CONFIG_SCHED_STACK_RECORD=0
CONFIG_DEV_CONSOLE=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=8
CONFIG_FILE_STREAM=y
CONFIG_BOARD_LATE_INITIALIZE=y
CONFIG_BOARD_INITTHREAD_STACKSIZE=2048
CONFIG_BOARD_INITTHREAD_PRIORITY=240
CONFIG_ENABLE_ALL_SIGNALS=y
CONFIG_SIG_PREALLOC_ACTIONS=4
CONFIG_SIG_ALLOC_ACTIONS=1
CONFIG_SIG_PREALLOC_IRQ_ACTIONS=8
CONFIG_PREALLOC_MQ_MSGS=8
CONFIG_PREALLOC_MQ_IRQ_MSGS=8
CONFIG_MQ_MAXMSGSIZE=32
CONFIG_SCHED_WORKQUEUE=y
CONFIG_SCHED_HPWORK=y
CONFIG_SCHED_HPNTHREADS=1
CONFIG_SCHED_HPWORKPRIORITY=224
CONFIG_SCHED_HPWORKSTACKSIZE=2048
CONFIG_SCHED_HPWORKSTACKSECTION=""
CONFIG_DEFAULT_TASK_STACKSIZE=2048
CONFIG_IDLETHREAD_STACKSIZE=4096
CONFIG_PTHREAD_STACK_MIN=256
CONFIG_PTHREAD_STACK_DEFAULT=2048
CONFIG_PTHREAD_GUARDSIZE_DEFAULT=0
CONFIG_SCHED_BACKTRACE=y
CONFIG_PID_INITIAL_COUNT=16
CONFIG_SCHED_EVENTS=y
CONFIG_DEV_LOOP=y
CONFIG_ONESHOT=y
CONFIG_ONESHOT_COUNT=y
CONFIG_ALARM_ARCH=y
CONFIG_BCH=y
CONFIG_BCH_BUFFER_ALIGNMENT=0
CONFIG_IOEXPANDER=y
CONFIG_IOEXPANDER_DUMMY=y
CONFIG_IOEXPANDER_DUMMY_INT_NCALLBACKS=4
CONFIG_IOEXPANDER_DUMMY_INT_POLLDELAY=500000
CONFIG_IOEXPANDER_INT_ENABLE=y
CONFIG_IOEXPANDER_NPINS=16
CONFIG_DEV_GPIO=y
CONFIG_DEV_GPIO_NPOLLWAITERS=1
CONFIG_DEV_GPIO_NSIGNALS=1
CONFIG_GPIO_LOWER_HALF=y
CONFIG_GPIO_LOWER_HALF_INTTYPE=14
CONFIG_DEV_NULL=y
CONFIG_DEV_ZERO=y
CONFIG_DEV_OPTEE_NONE=y
CONFIG_DRVR_MKRD=y
CONFIG_PIPES=y
CONFIG_DEV_PIPE_MAXSIZE=65535
CONFIG_DEV_PIPE_SIZE=1024
CONFIG_DEV_FIFO_SIZE=1024
CONFIG_DEV_PIPE_VFS_PATH="/var/pipe"
CONFIG_DEV_PIPE_NPOLLWAITERS=4
CONFIG_ARCH_HAVE_SERIAL_TERMIOS=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y
CONFIG_SERIAL_NPOLLWAITERS=4
CONFIG_SERIAL_IFLOWCONTROL=y
CONFIG_SERIAL_TXDMA=y
CONFIG_SERIAL_RXDMA=y
CONFIG_SYSLOG=y
CONFIG_SYSLOG_DEFAULT_MASK=0xff
CONFIG_SYSLOG_CRLF=y
CONFIG_SYSLOG_MAX_CHANNELS=1
CONFIG_SYSLOG_DEVPATH="/dev/ttyS1"
CONFIG_SYSLOG_DEFAULT=y
CONFIG_FS_NEPOLL_DESCRIPTORS=8
CONFIG_FS_LOCK_BUCKET_SIZE=0
CONFIG_PSEUDOFS_ATTRIBUTES=y
CONFIG_PSEUDOFS_SOFTLINKS=y
CONFIG_PSEUDOFS_FILE=y
CONFIG_SENDFILE_BUFSIZE=512
CONFIG_FS_HEAPSIZE=0
CONFIG_FS_BACKTRACE=0
CONFIG_FS_MQUEUE_VFS_PATH="/var/mqueue"
CONFIG_FS_MQUEUE_NPOLLWAITERS=4
CONFIG_FS_RAMMAP=y
CONFIG_FS_ANONMAP=y
CONFIG_FS_FAT=y
CONFIG_FAT_LCNAMES=y
CONFIG_FAT_LFN=y
CONFIG_FAT_MAXFNAME=32
CONFIG_FAT_LFN_ALIAS_TRAILCHARS=0
CONFIG_FS_ROMFS=y
CONFIG_FS_ROMFS_CACHE_NODE=y
CONFIG_FS_ROMFS_CACHE_FILE_NSECTORS=1
CONFIG_FS_BINFS=y
CONFIG_FS_PROCFS=y
CONFIG_FS_HOSTFS=y
CONFIG_NXFONTS_PACKEDMSFIRST=y
CONFIG_MM_DEFAULT_MANAGER=y
CONFIG_MM_DEFAULT_ALIGNMENT=8
CONFIG_MM_NODE_GUARDSIZE=0
CONFIG_MM_REGIONS=1
CONFIG_MM_MAP_COUNT_MAX=1024
CONFIG_MM_BACKTRACE=-1
CONFIG_MM_FREE_DELAYCOUNT_MAX=0
CONFIG_MM_HEAP_BIGGEST_COUNT=30
CONFIG_MM_HEAP_MEMPOOL_THRESHOLD=-1
CONFIG_PATH_INITIAL="/bin"
CONFIG_BINFMT_ELF_RELOCATABLE=y
CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIBC_NUMBERED_ARGS=y
CONFIG_LIBC_NL_ARGMAX=9
CONFIG_ARCH_LOWPUTC=y
CONFIG_LIBC_RAND_ORDER=1
CONFIG_LIBC_HOMEDIR="/"
CONFIG_LIBC_TMPDIR="/tmp"
CONFIG_LIBC_MAX_TMPFILE=32
CONFIG_LIBC_MAX_EXITFUNS=1
CONFIG_LIBC_EXECFUNCS=y
CONFIG_POSIX_SPAWN_DEFAULT_STACKSIZE=2048
CONFIG_LIBC_HOSTNAME=""
CONFIG_LIBC_OPEN_MAX=256
CONFIG_NAME_MAX=32
CONFIG_PATH_MAX=256
CONFIG_LINE_MAX=80
CONFIG_LIBC_STRERROR_ERRNUM=y
CONFIG_LIBC_STRSIGNAL=y
CONFIG_LIBC_LOCALE=y
CONFIG_LIBC_LOCALE_CATALOG=y
CONFIG_LIBC_LOCALE_GETTEXT=y
CONFIG_LIBC_LOCALE_PATH="/etc/locale"
CONFIG_TLS_NELEM=0
CONFIG_TLS_TASK_NELEM=0
CONFIG_TLS_NCLEANUP=0
CONFIG_LIBC_GAISTRERROR_ERRNUM=y
CONFIG_LIBC_ENVPATH=y
CONFIG_LIBC_FTOK_VFS_PATH="/var/ftok"
CONFIG_LIBC_MEMFD_ERROR=y
CONFIG_LIBC_TEMPBUFFER=y
CONFIG_LIBC_MAX_TEMPBUFFER=2
CONFIG_LIBC_TEMPBUFFER_MALLOC=y
CONFIG_LIBC_BACKTRACE_BUFFSIZE=0
CONFIG_LIBC_MUTEX_BACKTRACE=0
CONFIG_BUILTIN=y
CONFIG_STREAM_OUT_BUFFER_SIZE=64
CONFIG_STREAM_HEXDUMP_BUFFER_SIZE=128
CONFIG_STREAM_BASE64_BUFFER_SIZE=128
CONFIG_LIBC_INLINE_QUEUE=y
CONFIG_LIBM_TOOLCHAIN=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_BUILTIN_TOOLCHAIN=y
CONFIG_COVERAGE_TOOLCHAIN=y
CONFIG_COVERAGE_DEFAULT_PREFIX_STRIP="0"
CONFIG_COVERAGE_DEFAULT_PREFIX="/data"
CONFIG_PROFILE_NONE=y
CONFIG_COVERAGE_ALL=y
CONFIG_EXAMPLES_GPIO=y
CONFIG_EXAMPLES_GPIO_PROGNAME="gpio"
CONFIG_EXAMPLES_GPIO_PRIORITY=100
CONFIG_EXAMPLES_GPIO_STACKSIZE=2048
CONFIG_EXAMPLES_HELLO=y
CONFIG_EXAMPLES_HELLO_PROGNAME="hello"
CONFIG_EXAMPLES_HELLO_PRIORITY=100
CONFIG_EXAMPLES_HELLO_STACKSIZE=2048
CONFIG_FSUTILS_MKFATFS=y
CONFIG_MKFATFS_BUFFER_ALIGNMENT=0
CONFIG_NSH_LIBRARY=y
CONFIG_NSH_PROMPT_STRING="nsh> "
CONFIG_NSH_PROMPT_MAX=32
CONFIG_NSH_PROMPT_ENV="PS1"
CONFIG_NSH_PROMPT_SUFFIX="> "
CONFIG_NSH_READLINE=y
CONFIG_NSH_QUOTE=y
CONFIG_NSH_MAXARGUMENTS=7
CONFIG_NSH_ARGCAT=y
CONFIG_NSH_NESTDEPTH=3
CONFIG_NSH_ALIAS=y
CONFIG_NSH_ALIAS_MAX_AMOUNT=1
CONFIG_NSH_PIPELINE=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILE_APPS=y
CONFIG_NSH_DISABLE_DATE=y
CONFIG_NSH_DISABLE_LOSMART=y
CONFIG_NSH_DISABLE_LOMTD=y
CONFIG_NSH_DISABLE_MB=y
CONFIG_NSH_DISABLE_MH=y
CONFIG_NSH_DISABLE_MW=y
CONFIG_NSH_DISABLE_SHUTDOWN=y
CONFIG_NSH_DISABLE_TIMEDATECTL=y
CONFIG_NSH_CODECS_BUFSIZE=128
CONFIG_NSH_PROC_MOUNTPOINT="/proc"
CONFIG_NSH_FILEIOSIZE=1024
CONFIG_NSH_SYSINITSCRIPT="init.d/rc.sysinit"
CONFIG_NSH_INITSCRIPT="init.d/rcS"
CONFIG_NSH_SCRIPT_REDIRECT_PATH=""
CONFIG_NSH_CONSOLE=y
CONFIG_SYSTEM_DD=y
CONFIG_SYSTEM_DD_PROGNAME="dd"
CONFIG_SYSTEM_DD_PRIORITY=100
CONFIG_SYSTEM_DD_STACKSIZE=2048
CONFIG_SYSTEM_DD_STATS=y
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_DUMPSTACK_STACKSIZE=2048
CONFIG_SYSTEM_DUMPSTACK_PRIORITY=100
CONFIG_SYSTEM_GCOV=y
CONFIG_SYSTEM_GCOV_PROGNAME="gcov"
CONFIG_SYSTEM_GCOV_PRIORITY=100
CONFIG_SYSTEM_GCOV_STACKSIZE=2048
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_NSH_PRIORITY=100
CONFIG_SYSTEM_NSH_STACKSIZE=2048
CONFIG_SYSTEM_NSH_PROGNAME="nsh"
CONFIG_SYSTEM_NXINIT=y
CONFIG_SYSTEM_NXINIT_PRIORITY=100
CONFIG_SYSTEM_NXINIT_STACKSIZE=2048
CONFIG_SYSTEM_NXINIT_PROGNAME="init"
CONFIG_SYSTEM_NXINIT_RC_FILE_PATH="/data/init.rc"
CONFIG_SYSTEM_NXINIT_RC_LINE_MAX=128
CONFIG_SYSTEM_NXINIT_ACTION_CMD_ARGS_MAX=8
CONFIG_SYSTEM_NXINIT_ACTION_WARN_SLOW=50
CONFIG_SYSTEM_NXINIT_ACTION_MANAGER_EVENT_MAX=32
CONFIG_SYSTEM_NXINIT_SERVICE_ARGS_MAX=8
CONFIG_SYSTEM_NXINIT_SERVICE_RESTART_PERIOD=5000
CONFIG_SYSTEM_NXINIT_ERR=y
CONFIG_SYSTEM_NXINIT_WARN=y
CONFIG_SYSTEM_NXINIT_INFO=y
CONFIG_SYSTEM_NXINIT_DEBUG=y
CONFIG_SYSTEM_READLINE=y
CONFIG_READLINE_HAVE_EXTMATCH=y
CONFIG_READLINE_ECHO=y
CONFIG_READLINE_TABCOMPLETION=y
CONFIG_READLINE_MAX_BUILTINS=64
CONFIG_READLINE_MAX_EXTCMDS=64
CONFIG_TESTING_OSTEST=y
CONFIG_TESTING_OSTEST_LOOPS=1
CONFIG_TESTING_OSTEST_STACKSIZE=8192
CONFIG_TESTING_OSTEST_NBARRIER_THREADS=8
CONFIG_TESTING_OSTEST_RR_RANGE=30000
CONFIG_TESTING_OSTEST_RR_RUNS=10
CONFIG_TESTING_OSTEST_WAITRESULT=y
CONFIG_TESTING_OSTEST_SPINLOCK_THREADS=2
CONFIG_TEST_LOOP_SCALE=100
Host system OS:
Arch Linux Linux pastabox 7.0.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Sun, 17 May
2026 17:23:07 +0000 x86_64
Host system PATH:
/home/linguini/coding/nuttx-space/xtensa-esp-elf/bin
/home/linguini/coding/bin
/home/linguini/.config/custom-scripts
/home/linguini/.cargo/bin
/sbin
/bin
/usr/local/sbin
/usr/local/bin
/usr/sbin
/usr/bin
/opt/cuda/bin
/usr/lib/jvm/default/bin
/usr/bin/site_perl
/usr/bin/vendor_perl
/usr/bin/core_perl
/opt/rocm/bin
/usr/lib/rustup/bin
```
### Verification
- [x] I have verified before submitting the report.
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