comment "UBI debugging options" depends on MTD_UBI config MTD_UBI_DEBUG bool "UBI debugging" depends on SYSFS depends on MTD_UBI select DEBUG_FS select KALLSYMS_ALL help This option enables UBI debugging. config MTD_UBI_DEBUG_MSG bool "UBI debugging messages" depends on MTD_UBI_DEBUG default n help This option enables UBI debugging messages. config MTD_UBI_DEBUG_PARANOID bool "Extra self-checks" default n depends on MTD_UBI_DEBUG help This option enables extra checks in UBI code. Note this slows UBI down significantly. config MTD_UBI_DEBUG_DISABLE_BGT bool "Do not enable the UBI background thread" depends on MTD_UBI_DEBUG default n help This option switches the background thread off by default. The thread may be also be enabled/disabled via UBI sysfs. config MTD_UBI_DEBUG_USERSPACE_IO bool "Direct user-space write/erase support" default n depends on MTD_UBI_DEBUG help By default, users cannot directly write and erase individual eraseblocks of dynamic volumes, and have to use update operation instead. This option enables this capability - it is very useful for debugging and testing. config MTD_UBI_DEBUG_EMULATE_BITFLIPS bool "Emulate flash bit-flips" depends on MTD_UBI_DEBUG default n help This option emulates bit-flips with probability 1/50, which in turn causes scrubbing. Useful for debugging and stressing UBI. config MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES bool "Emulate flash write failures" depends on MTD_UBI_DEBUG default n help This option emulates write failures with probability 1/100. Useful for debugging and testing how UBI handlines errors. config MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES bool "Emulate flash erase failures" depends on MTD_UBI_DEBUG default n help This option emulates erase failures with probability 1/100. Useful for debugging and testing how UBI handlines errors. menu "Additional UBI debugging messages" depends on MTD_UBI_DEBUG config MTD_UBI_DEBUG_MSG_BLD bool "Additional UBI initialization and build messages" default n depends on MTD_UBI_DEBUG help This option enables detailed UBI initialization and device build debugging messages. config MTD_UBI_DEBUG_MSG_EBA bool "Eraseblock association unit messages" default n depends on MTD_UBI_DEBUG help This option enables debugging messages from the UBI eraseblock association unit. config MTD_UBI_DEBUG_MSG_WL bool "Wear-leveling unit messages" default n depends on MTD_UBI_DEBUG help This option enables debugging messages from the UBI wear-leveling unit. config MTD_UBI_DEBUG_MSG_IO bool "Input/output unit messages" default n depends on MTD_UBI_DEBUG help This option enables debugging messages from the UBI input/output unit. endmenu # UBI debugging messages