问题：
protubuf-cpp 在虚拟机linux下（ubuntu 18.04）编译，编译后执行 make check 失败，LOG如下：
../test-driver：行 107: 125242 已杀死 "$@" > $log_file 2>&1
FAIL: protobuf-test
PASS: protobuf-lazy-descriptor-test
PASS: protobuf-lite-test
PASS: google/protobuf/compiler/zip_output_unittest.sh
PASS: google/protobuf/io/gzip_stream_unittest.sh
PASS: protobuf-lite-arena-test
PASS: no-warning-test
============================================================================
Testsuite summary for Protocol Buffers 3.17.0
============================================================================
# TOTAL: 7
# PASS: 6
# SKIP: 0
# XFAIL: 0
# FAIL: 1
# XPASS: 0
# ERROR: 0
============================================================================
See src/test-suite.log
Please report to [email protected]
============================================================================
Makefile:7577: recipe for target 'test-suite.log' failed
解决：
虚拟机系统原分配内存4G，改为8G：
再次执行 make check 成功
PASS: protobuf-test
PASS: protobuf-lazy-descriptor-test
PASS: protobuf-lite-test
PASS: google/protobuf/compiler/zip_output_unittest.sh
PASS: google/protobuf/io/gzip_stream_unittest.sh
PASS: protobuf-lite-arena-test
PASS: no-warning-test
============================================================================
Testsuite summary for Protocol Buffers 3.17.0
============================================================================
# TOTAL: 7
# PASS: 7
# SKIP: 0
# XFAIL: 0
# FAIL: 0
# XPASS: 0
# ERROR: 0
============================================================================