[vagrant@papi papi-app]$ gdb --args php vendor/bin/phpunit --colors --verbose --configuration tests/unit/phpunit.xml --log-junit="tests/unit/report.xml" --coverage-html="tests/unit/reports/coverage" --testdox-html="tests/unit/reports/testdox/index.html" --filter shouldGenerateBaseCoreOutput GNU gdb (GDB) Red Hat Enterprise Linux (7.2-83.el6) Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/bin/php...(no debugging symbols found)...done. Missing separate debuginfos, use: debuginfo-install php70w-cli-7.0.5-1.w6.x86_64 (gdb) r Starting program: /usr/bin/php vendor/bin/phpunit --colors --verbose --configuration tests/unit/phpunit.xml --log-junit=tests/unit/report.xml --coverage-html=tests/unit/reports/coverage --testdox-html=tests/unit/reports/testdox/index.html --filter shouldGenerateBaseCoreOutput [Thread debugging using libthread_db enabled] PHPUnit 4.1.6 by Sebastian Bergmann. Configuration read from /etc/alternatives/papi-app/tests/unit/phpunit.xml Program received signal SIGSEGV, Segmentation fault. 0x00007fffedd13373 in xdebug_build_fname_from_oparray (tmp=0x7fffffff9000, opa=0x7fffe558b2a0) at /home/vagrant/xdebug-2.4.0/xdebug_code_coverage.c:812 812 if (strcmp(STR_NAME_VAL(opa->function_name), "{closure}") == 0) {