CONFIG_IDLE_STACK_SIZE

Size of stack for idle thread

Type: int

Help

Depending on the work that the idle task must do, most likely due to power management but possibly to other features like system event logging (e.g. logging when the system goes to sleep), the idle thread may need more stack space than the default value.

Defaults

Kconfig definitions

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em4:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:14

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM4 && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em5d:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:15

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM5D && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em6:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:16

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM6 && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em7d:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:17

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM7D && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em9d:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:19

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM9D && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig.em11d:33

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsdp/Kconfig.defconfig:20

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on SOC_EMSDP_EM11D && SOC_ARC_EMSDP

At <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig.em7d:46

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_emsk/Kconfig.defconfig:10

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on ARC_MPU_VER = 2 && SOC_EMSK_EM7D && SOC_EMSK

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.em:44

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:15

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on ARC_MPU_VER = 2 && SOC_NSIM_EM && SOC_NSIM

At <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig.em7d_v22:41

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:19 → <BuildDir>/Kconfig/Kconfig.soc.defconfig:1 → <Zephyr>/soc/arc/snps_nsim/Kconfig.defconfig:16

Menu path: (Top)

config IDLE_STACK_SIZE
    int
    default 2048
    depends on ARC_MPU_VER = 2 && SOC_NSIM_EM7D_V22 && SOC_NSIM

At <Zephyr>/arch/arm/core/aarch64/Kconfig:35

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12 → <Zephyr>/arch/arm/Kconfig:46

Menu path: (Top) → ARM Options

config IDLE_STACK_SIZE
    int
    default 4096
    depends on ARM64 && ARM

At <Zephyr>/arch/sparc/Kconfig:41

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12

Menu path: (Top) → SPARC Options

config IDLE_STACK_SIZE
    int
    default 1024
    depends on SPARC

At <Zephyr>/arch/x86/core/Kconfig.intel64:11

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12 → <Zephyr>/arch/x86/Kconfig:327

Menu path: (Top) → X86 Architecture Options

config IDLE_STACK_SIZE
    int
    default 4096
    depends on X86_64 && X86

At <Zephyr>/kernel/Kconfig:162

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:30

Menu path: (Top) → General Kernel Options

config IDLE_STACK_SIZE
    int "Size of stack for idle thread"
    default 2048 if COVERAGE_GCOV
    default 1024 if XTENSA
    default 512 if RISCV
    default 384 if DYNAMIC_OBJECTS
    default 320 if ARC || (ARM && CPU_HAS_FPU) || (X86 && MMU)
    default 256
    help
      Depending on the work that the idle task must do, most likely due to
      power management but possibly to other features like system event
      logging (e.g. logging when the system goes to sleep), the idle thread
      may need more stack space than the default value.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)