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CONFIG_ISR_SUBSTACK_SIZE
¶
Size of ISR substacks
Type: int
Help¶
Number of bytes from the ISR stack to reserve for each nested IRQ level. Must be a multiple of 16 to main stack alignment. Note that CONFIG_ISR_SUBSTACK_SIZE * CONFIG_ISR_DEPTH must be equal to CONFIG_ISR_STACK_SIZE.
Default¶
4096
Kconfig definition¶
At arch/x86/core/Kconfig.intel64:63
Included via Kconfig:8
→ Kconfig.zephyr:29
→ arch/Kconfig:12
→ arch/x86/Kconfig:320
Menu path: (Top) → X86 Architecture Options
config ISR_SUBSTACK_SIZE int "Size of ISR substacks" default 4096 depends onX86_64
&&X86
help Number of bytes from the ISR stack to reserve for each nested IRQ level. Must be a multiple of 16 to main stack alignment. Note that CONFIG_ISR_SUBSTACK_SIZE * CONFIG_ISR_DEPTH must be equal to CONFIG_ISR_STACK_SIZE.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)