Bug #69643 [Csd]: Segmentation fault in i_zval_ptr_dtor() (zend_variables.h:56)

Edit report at https://bugs.php.net/bug.php?id=69643&edit=1 ID: 69643 Updated by: laruence@php.net Reported by: berdir@php.net Summary: Segmentation fault in i_zval_ptr_dtor() (zend_variables.h:56) Status: Closed Type: Bug Package: Scripting Engine problem Operating System: Ubuntu PHP Version: master-Git-2015-05-15 (Git) Assigned To: laruence Block user comment: N Private report: N New Comment: okey, now it runs as yours , but no segfault, I have tried both debug/no-debug version $ php7 core/scripts/run-tests.sh --repeat 20 --concurrency 8 --sqlite /tmp/test.sqlite --dburl sqlite://tmp/db.sqlite --url http://d8/ --class "Drupal\migrate_drupal\Tests\d6\MigrateFieldTest" Drupal test run --------------- Tests to be run: - Drupal\migrate_drupal\Tests\d6\MigrateFieldTest Test run started: Friday, May 29, 2015 - 11:53 Test summary ------------ Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Test run duration: 14 sec Previous Comments: ------------------------------------------------------------------------ [2015-05-29 06:15:58] berdir@php.net If you get errors/exceptions, use --verbose --color instead of --concurrency to see what the problem is. My guess is that you're missing an extension or something like that. ------------------------------------------------------------------------ [2015-05-29 03:05:54] laruence@php.net What I got is: $ php7 core/scripts/run-tests.sh --repeat 20 --concurrency 8 --sqlite '/tmp/test.sqlite' --dburl 'sqlite://tmp/db.sqlite' --url http://d8/ --class "Drupal\migrate_drupal\Tests\d6\MigrateFieldTest" Drupal test run --------------- Tests to be run: - Drupal\migrate_drupal\Tests\d6\MigrateFieldTest Test run started: Friday, May 29, 2015 - 03:01 Test summary ------------ Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 1 passes 1 exceptions Test run duration: 1 min ------------------------------------------------------------------------ [2015-05-28 22:20:28] berdir@php.net Ok, this is annoying. i found a way to reproduce the origin segfault. It only happens when running the tests with concurrency. I was able to generate a core file for a non-packaged executable on ubuntu by doing this: as root: # echo "/tmp/core.%e.%p.%h.%t" > /proc/sys/kernel/core_pattern Then run: php7 core/scripts/run-tests.sh --repeat 20 --concurrency 8 --url http://d8/ --class "Drupal\migrate_drupal\Tests\d6\MigrateFieldTest" You should get an output like this: ... Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes Segmentation fault (core dumped) FATAL Drupal\migrate_drupal\Tests\d6\MigrateFieldTest: test runner returned a non-zero error code (139). - Found database prefix 'simpletest866096' for test ID 1804. Segmentation fault (core dumped) Segmentation fault (core dumped) FATAL Drupal\migrate_drupal\Tests\d6\MigrateFieldTest: test runner returned a non-zero error code (139). - Found database prefix 'simpletest667328' for test ID 1800. FATAL Drupal\migrate_drupal\Tests\d6\MigrateFieldTest: test runner returned a non-zero error code (139). - Found database prefix 'simpletest325478' for test ID 1806. Segmentation fault (core dumped) FATAL Drupal\migrate_drupal\Tests\d6\MigrateFieldTest: test runner returned a non-zero error code (139). - Found database prefix 'simpletest901902' for test ID 1803. Drupal\migrate_drupal\Tests\d6\MigrateFieldTest 31 passes ... And then find the core dumps in /tmp. (gdb) print zval_ptr $1 = (zval *) 0x7fa473d0d0d8 (gdb) print *zval_ptr $2 = {value = {lval = 139638785192025, dval = 6.8990726590384926e-310, counted = 0x7f0030303059, str = 0x7f0030303059, arr = 0x7f0030303059, obj = 0x7f0030303059, res = 0x7f0030303059, ref = 0x7f0030303059, ast = 0x7f0030303059, zv = 0x7f0030303059, ptr = 0x7f0030303059, ce = 0x7f0030303059, func = 0x7f0030303059, ww = {w1 = 808464473, w2 = 32512}}, u1 = {v = { type = 8 '\b', type_flags = 12 '\f', const_flags = 0 '\000', reserved = 0 '\000'}, type_info = 3080}, u2 = {var_flags = 1953066601, next = 1953066601, cache_slot = 1953066601, lineno = 1953066601, num_args = 1953066601, fe_pos = 1953066601, fe_iter_idx = 1953066601}}. (gdb) print zval_ptr->value $3 = {lval = 139638785192025, dval = 6.8990726590384926e-310, counted = 0x7f0030303059, str = 0x7f0030303059, arr = 0x7f0030303059, obj = 0x7f0030303059, res = 0x7f0030303059, ref = 0x7f0030303059, ast = 0x7f0030303059, zv = 0x7f0030303059, ptr = 0x7f0030303059, ce = 0x7f0030303059, func = 0x7f0030303059, ww = {w1 = 808464473, w2 = 32512}} (gdb) print zval_ptr->value->str $4 = (zend_string *) 0x7f0030303059 (gdb) print *zval_ptr->value->str Cannot access memory at address 0x7f0030303059 ------------------------------------------------------------------------ [2015-05-28 20:07:01] berdir@php.net I can confirm that this fixed now! No more segfaults with php7 in our test suite. Two new test fails thought, looking into those now. ------------------------------------------------------------------------ [2015-05-28 16:05:44] laruence@php.net Automatic comment on behalf of laruence Revision: http://git.php.net/?p=php-src.git;a=commit;h=50e08d60b66d7cdc47f61fbe73b7ebfea8da0acc Log: Attempt to fix #69643 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=69643 -- Edit this bug report at https://bugs.php.net/bug.php?id=69643&edit=1