#define LOS_ERRNO_MUX_PEND_INTERR   LOS_ERRNO_OS_ERROR(LOS_MOD_MUX, 0x05)

Mutex error code: The mutex is being locked during an interrupt.

Value: 0x02001d05

Solution: Check whether the mutex is being locked during an interrupt.

在文件los_mux.h112行定义。