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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"shutdown (exit) can hang or segfault with daemon threads running","articleBody":"BPO | [1856](https://bugs.python.org/issue1856)\n--- | :---\nNosy | @birkenfeld, @terryjreedy, @doko42, @gpshead, @kbkaiser, @amauryfa, @pitrou, @vstinner, @benjaminp, @ned-deily, @Trundle\nFiles | \u003cli\u003e[thread_exit.py](https://bugs.python.org/file9188/thread_exit.py \"Uploaded as text/plain at 2008-01-17.02:01:09 by @gpshead\"): run this several times for several different behaviors\u003c/li\u003e\u003cli\u003e[python-trunk-issue1856-threadexit.diff](https://bugs.python.org/file9199/python-trunk-issue1856-threadexit.diff \"Uploaded as text/plain at 2008-01-17.22:35:35 by Rhamphoryncus\"): Immediately exit non-main threads if the interpreter is exiting\u003c/li\u003e\u003cli\u003e[thread_noswap.patch](https://bugs.python.org/file9200/thread_noswap.patch \"Uploaded as text/plain at 2008-01-17.22:54:38 by @amauryfa\")\u003c/li\u003e\u003cli\u003e[python-thread_noswap-2.diff](https://bugs.python.org/file10208/python-thread_noswap-2.diff \"Uploaded as text/plain at 2008-05-07.18:11:50 by Rhamphoryncus\")\u003c/li\u003e\u003cli\u003e[finalizing.patch](https://bugs.python.org/file21862/finalizing.patch \"Uploaded as text/plain at 2011-05-02.20:49:53 by @pitrou\")\u003c/li\u003e\u003cli\u003e[finalizing2.patch](https://bugs.python.org/file21872/finalizing2.patch \"Uploaded as text/plain at 2011-05-03.17:25:35 by @pitrou\")\u003c/li\u003e\n\n\u003csup\u003e*Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.*\u003c/sup\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShow more details\u003c/summary\u003e\u003cp\u003e\n\nGitHub fields:\n```python\nassignee = None\nclosed_at = \u003cDate 2014-07-11.21:08:57.822\u003e\ncreated_at = \u003cDate 2008-01-17.02:01:14.628\u003e\nlabels = ['interpreter-core', 'type-crash']\ntitle = 'shutdown (exit) can hang or segfault with daemon threads running'\nupdated_at = \u003cDate 2020-03-26.23:05:06.906\u003e\nuser = 'https://github.com/gpshead'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2020-03-26.23:05:06.906\u003e\nactor = 'vstinner'\nassignee = 'none'\nclosed = True\nclosed_date = \u003cDate 2014-07-11.21:08:57.822\u003e\ncloser = 'ned.deily'\ncomponents = ['Interpreter Core']\ncreation = \u003cDate 2008-01-17.02:01:14.628\u003e\ncreator = 'gregory.p.smith'\ndependencies = []\nfiles = ['9188', '9199', '9200', '10208', '21862', '21872']\nhgrepos = []\nissue_num = 1856\nkeywords = ['patch']\nmessage_count = 32.0\nmessages = ['60014', '60016', '60018', '60056', '60059', '60063', '60069', '60070', '60071', '60072', '60073', '60074', '60075', '60077', '66363', '66742', '73720', '81485', '112641', '115330', '116928', '135006', '135007', '135051', '135144', '135146', '194599', '220786', '222768', '222796', '231460', '365120']\nnosy_count = 20.0\nnosy_names = ['georg.brandl', 'terry.reedy', 'doko', 'gregory.p.smith', 'kbk', 'guettli', 'amaury.forgeotdarc', 'ggenellina', 'Rhamphoryncus', 'larsimmisch', 'pitrou', 'vstinner', 'forest', 'flub', 'benjamin.peterson', 'jamescooper', 'ned.deily', 'Trundle', 'Netto', 'python-dev']\npr_nums = []\npriority = 'high'\nresolution = 'fixed'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = 'crash'\nurl = 'https://bugs.python.org/issue1856'\nversions = ['Python 3.2', 'Python 3.3']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/gpshead","@type":"Person","name":"gpshead"},"datePublished":"2008-01-17T02:01:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":32},"url":"https://github.com/46164/cpython/issues/46164"}