#35010: Parallel test runner hangs if one of the tests segfault ---------------------------------------------+------------------------ Reporter: Michał Górny | Owner: nobody Type: Bug | Status: new Component: Testing framework | Version: dev Severity: Normal | Keywords: Triage Stage: Unreviewed | Has patch: 0 Needs documentation: 0 | Needs tests: 0 Patch needs improvement: 0 | Easy pickings: 0 UI/UX: 0 | ---------------------------------------------+------------------------ When the tests are being run in parallel, and one of the tests cause a segfault, the test runner hangs:
{{{ $ PYTHONPATH=. python3.11 tests/runtests.py --parallel=2 queries.tests.{ProxyQueryCleanupTest,Queries1Tests} Testing against Django installed in '/tmp/django/django' with up to 2 processes Found 78 test(s). Creating test database for alias 'default'... Cloning test database for alias 'default'... Cloning test database for alias 'default'... System check identified no issues (1 silenced). .Fatal Python error: Segmentation fault Current thread 0x00007fe3c3d42740 (most recent call first): File "/usr/lib/python3.11/copy.py", line 265 in _reconstruct File "/usr/lib/python3.11/copy.py", line 102 in copy File "/tmp/django/django/db/models/expressions.py", line 426 in copy File "/tmp/django/django/db/models/expressions.py", line 284 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 277 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf File "/tmp/django/django/db/models/sql/where.py", line 279 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 275 in _resolve_node File "/tmp/django/django/db/models/sql/where.py", line 283 in resolve_expression File "/tmp/django/django/db/models/sql/query.py", line 1203 in resolve_expression File "/tmp/django/django/db/models/sql/where.py", line 268 in _resolve_leaf ... }}} At this point, nothing else is happening, the processes don't utilize CPU: {{{ $ ps -ft 111241 pts/2 Tl 0:02 \_ python3.11 tests/runtests.py --parallel=2 queries.tests.ProxyQueryCleanupTest queries.tests.Queries1Tests 111243 pts/2 T 0:00 | \_ python3.11 tests/runtests.py --parallel=2 queries.tests.ProxyQueryCleanupTest queries.tests.Queries1Tests 111248 pts/2 T 0:00 | \_ python3.11 tests/runtests.py --parallel=2 queries.tests.ProxyQueryCleanupTest queries.tests.Queries1Tests }}} If I cancel it, it seems to ignore the killed process: {{{ ^C ---------------------------------------------------------------------- Ran 1 test in 613.663s OK Destroying test database for alias 'default'... Destroying test database for alias 'default'... Destroying test database for alias 'default'... }}} (I'm still trying to figure out why that other test segfaults for me) -- Ticket URL: <https://code.djangoproject.com/ticket/35010> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/0107018c356d7fde-fca59732-e52d-4f5a-bdb2-7f4372e37ee3-000000%40eu-central-1.amazonses.com.