Debug CI segfault

[jtojnar]

No description provided.

[jtojnar]

Logging into CI using tmate I can reproduce the segfault:

$ make coverage
phpdbg -qrr vendor/bin/codecept run --coverage-xml
Codeception PHP Testing Framework v5.1.2 https://stand-with-ukraine.pp.ua

In Selector.php line 41:
                                     
  No code coverage driver available  
                                     

run [-o|--override OVERRIDE] [-e|--ext EXT] [--report] [--html [HTML]] [--xml [XML]] [--phpunit-xml [PHPUNIT-XML]] [--colors] [--no-colors] [--silent] [--steps] [-d|--debug] [--shard SHARD] [--filter FILTER] [--grep GREP] [--bootstrap [BOOTSTRAP]] [--no-redirect] [--coverage [COVERAGE]] [--coverage-html [COVERAGE-HTML]] [--coverage-xml [COVERAGE-XML]] [--coverage-text [COVERAGE-TEXT]] [--coverage-crap4j [COVERAGE-CRAP4J]] [--coverage-cobertura [COVERAGE-COBERTURA]] [--coverage-phpunit [COVERAGE-PHPUNIT]] [--no-exit] [-g|--group GROUP] [-s|--skip SKIP] [-x|--skip-group SKIP-GROUP] [--env ENV] [-f|--fail-fast [FAIL-FAST]] [--no-rebuild] [--seed SEED] [--no-artifacts] [--] [<suite> [<test>]]

make: *** [Makefile:26: coverage] Segmentation fault (core dumped)

Stack trace obtained using export DEBUGINFOD_URLS="https://debuginfod.ubuntu.com" and coredumpctl gdb:

#0  0x00007f096c04275b in kill () at ../sysdeps/unix/syscall-template.S:120
No locals.
#1  0x000055bfb7df569b in zend_signal_handler (signo=signo@entry=11, siginfo=siginfo@entry=0x7ffcb0156cf0, context=context@entry=0x7ffcb0156bc0) at ./Zend/zend_signal.c:208
        errno_save = 0
        sa = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0 <repeats 12 times>, 4, 0, 15622380845581240832, 11}}, sa_flags = 67108868, sa_restorer = 0x7f096c042520 <__restore_rt>}
        sigset = {__val = {1024, 3, 0, 139678453063917, 0, 139678453063917, 16, 140723262680816, 64, 0, 94278827114500, 206158430232, 140723262681472, 140723262681280, 0, 5}}
        p_sig = <optimized out>
#2  0x000055bfb7df57a3 in zend_signal_handler_defer (signo=11, siginfo=0x7ffcb0156cf0, context=0x7ffcb0156bc0) at ./Zend/zend_signal.c:105
        errno_save = 0
        queue = <optimized out>
        qtmp = <optimized out>
#3  <signal handler called>
No locals.
#4  0x000055bfb7e098c2 in zend_observer_fcall_end (execute_data=execute_data@entry=0x7f0969a18020, return_value=return_value@entry=0x0) at ./Zend/zend_observer.c:220
        func = <optimized out>
        handler = 0x7f096180efa8
        possible_handlers_end = 0x7f096180efb0
#5  0x000055bfb7e099b0 in zend_observer_fcall_end_all () at ./Zend/zend_observer.c:240
        ex = 0x7f0969a18020
#6  0x000055bfb7d0b00c in php_request_shutdown (dummy=dummy@entry=0x0) at ./main/main.c:1809
        report_memleaks = true
#7  0x000055bfb7bb00f2 in main (argc=5, argv=0x7ffcb01585b8) at ./sapi/phpdbg/phpdbg.c:1720
        __orig_bailout = 0x0
        __bailout = {{__jmpbuf = {-8, 2504706928790203610, -8, 140723262686648, 139678403547144, 94281914180672, 8522098586813459674, 2504736827797794010}, __mask_was_saved = 0, __saved_mask = {__val = {0, 0, 0, 1152, 5153960759809, 
                144, 18, 2, 519691042940, 1009317314688, 4607, 7813586406938797358, 139678445579392, 73728, 4607, 7813586406938797358}}}}
        mm_heap = <optimized out>
        phpdbg = 0x55bfb7ff0460 <phpdbg_sapi_module>
        sapi_name = <optimized out>
        ini_entries = <optimized out>
        ini_entries_len = <optimized out>
        zend_extensions = 0x0
        zend_extensions_len = 0
        ini_ignore = false
        ini_override = <optimized out>
        exec = 0x0
        first_command = 0x0
        init_file = <optimized out>
        init_file_len = <optimized out>
        init_file_default = <optimized out>
        flags = 9126969344
        php_optarg = 0x0
        php_optind = 3
        opt = <optimized out>
        show_banner = 0
        cleaning = -1
        quit_immediately = true
        settings = 0x0
        bp_tmp = 0x0
        print_opline_func = 0x7ffcb0158170 ""
        ext_stmt = false
        is_exit = <optimized out>
        exit_status = <optimized out>
        read_from_stdin = <optimized out>
        backup_phpdbg_compile = 0x0
        show_help = false
        show_version = false
        _malloc = 0x0
        _free = 0x0
        _realloc = 0x0
        wrapper = {wops = 0x7ffcb0157af0, abstract = 0x0, is_url = 0}
        wops = {stream_opener = 0x55bfb7e59800 <phpdbg_stream_url_wrap_php>, stream_closer = 0x0, stream_stat = 0x0, url_stat = 0x0, dir_opener = 0x0, label = 0x55bfb7eb0fbc "PHP", unlink = 0x0, rename = 0x0, stream_mkdir = 0x0, 
          stream_rmdir = 0x0, stream_metadata = 0x0}
        signal_struct = {__sigaction_handler = {sa_handler = 0x55bfb7e5a2c0 <phpdbg_signal_handler>, sa_sigaction = 0x55bfb7e5a2c0 <phpdbg_signal_handler>}, sa_mask = {__val = {1825804464, 140720308486145, 16, 94278827114497, 
              139678457236368, 2954197936, 0, 94278827114497, 2243802607, 140723262684480, 139678443494810, 139678452825504, 140723262684320, 140723262684336, 139678457291281, 10}}, sa_flags = 1073741828, sa_restorer = 0x1}

[jtojnar]

Resolved in #106 by properly enabling xdebug.