[issue26938] android: test_concurrent_futures hangs on armv7

Xavier de Gaye added the comment: test_concurrent_futures is not run on Android because "This platform lacks a functioning sem_open implementation", see issue #26924. Closing as won't fix. -- resolution: -> wont fix status: open -> closed ___

[issue26938] android: test_concurrent_futures hangs on armv7

Xavier de Gaye added the comment: The strace output, the process is blocked in a futex system call: root@generic:/ # strace -p 1304 Process 1304 attached futex(0xb6f24880, FUTEX_WAIT_PRIVATE, 2, NULL -- ___ Python tracker

[issue26938] android: test_concurrent_futures hangs on armv7

Xavier de Gaye added the comment: Interestingly, all the tests (issues #26938, #26939, #26940 and #26941) that hang on arm use sys.setswitchinterval() aggressively. -- ___ Python tracker

[issue26938] android: test_concurrent_futures hangs on armv7

New submission from Xavier de Gaye: test_concurrent_futures hangs on an android emulator running an armv7 system image (but not on x86) at API level 21. The test suite hangs at: test_pending_calls_race (test.test_concurrent_futures.ThreadPoolWaitTests) ... A cause of this problem may be