Supervisor Mode and cache access

Hello

I am a beginner for BF609. While I run my code on BF609 development board by CCES, it will cause one of following two errors (occurs not regularly, sometimes multi seconds, sometime multi minutes)

error 1:

A non-recoverable error or exception has occured
Description: Attempted misaligned data memory or data cache access (Exception with EXCAUSE-0x24)
General Type: UnhandledException
Specific Type: DataMisalignedAccessViolation
Error PC: 0xffa07c98

error 2:

A non-recoverable error or exception has occured
Description: Attempted to use a Supervisor register or instruction from User mode (Exception with EXCAUSE-0x24)
General Type: UnhandledException
Specific Type: SupervisorResource
Error PC: 0xffa05f44