A Core Dump Occurs During the Computing Power and Power Consumption Testing

Symptom

A core dump occurs during the computing power and power consumption testing.

The following error information is displayed in the plog (debug level):

/usr/local/Ascend/cann-9.1.0/opp/built-in/op_impl/ai_core/tbe/op_host/lib/linux/x86_64/libophost_comm_legacy.so, reason: /usr/local/Ascend/cann-9.1.0/opp/built-in/op_impl/ai_core/tbe/op_host/lib/linux/x86_64/libophost_comm_legacy.so: undefined symbol: _ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv.

Possible Causes

The GCC version of the OS is too low. When libophost_comm_legacy.so is loaded, the _ZNKSt9basic_iosIcSt11char_traitsIcEEcvbEv symbol is missing. As a result, the .so file fails to be loaded.

Solution

Upgrade the GCC version of the OS to 7.3.0 or later.