# Version 20.0.0.3
**[HOTFIX]** When using the ARM ISA, gem5 could crash when a guest tried to call m5ops. This was due to `m5ops_base` being incorrectly declared in `src/arch/arm/ArmSystem.py`. A fix was applied to remove this declaration.
# Version 20.0.0.3
**[HOTFIX]** When using the ARM ISA, gem5 could crash when a guest tried to call m5ops. This was due to `m5ops_base` being incorrectly declared in `src/arch/arm/ArmSystem.py`. A fix was applied to remove this declaration.