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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"PyContextVar_Get(): crash due to race condition in updating tstate-\u003eid","articleBody":"BPO | [39776](https://bugs.python.org/issue39776)\n--- | :---\nNosy | @vstinner, @ned-deily, @skrah, @ambv, @1st1\nPRs | \u003cli\u003epython/cpython#18746\u003c/li\u003e\u003cli\u003epython/cpython#18752\u003c/li\u003e\u003cli\u003epython/cpython#18753\u003c/li\u003e\nFiles | \u003cli\u003e[decimal_crash.zip](https://bugs.python.org/file48923/decimal_crash.zip \"Uploaded as application/zip at 2020-02-27.15:25:12 by boytsovea\"): files to reproduce the bug\u003c/li\u003e\u003cli\u003e[threaded_crash.zip](https://bugs.python.org/file48930/threaded_crash.zip \"Uploaded as application/zip at 2020-02-28.14:20:57 by boytsovea\")\u003c/li\u003e\u003cli\u003e[pydecimal_cases.zip](https://bugs.python.org/file48945/pydecimal_cases.zip \"Uploaded as application/zip at 2020-03-03.15:17:15 by @skrah\"): _pydecimal cases\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 = 'https://github.com/skrah'\nclosed_at = \u003cDate 2020-03-03.16:21:32.281\u003e\ncreated_at = \u003cDate 2020-02-27.15:25:13.411\u003e\nlabels = ['interpreter-core', '3.8', '3.9', 'release-blocker', '3.7', 'type-crash']\ntitle = 'PyContextVar_Get(): crash due to race condition in updating tstate-\u003eid'\nupdated_at = \u003cDate 2020-03-05.00:42:46.093\u003e\nuser = 'https://bugs.python.org/boytsovea'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2020-03-05.00:42:46.093\u003e\nactor = 'yselivanov'\nassignee = 'skrah'\nclosed = True\nclosed_date = \u003cDate 2020-03-03.16:21:32.281\u003e\ncloser = 'skrah'\ncomponents = ['Interpreter Core']\ncreation = \u003cDate 2020-02-27.15:25:13.411\u003e\ncreator = 'boytsovea'\ndependencies = []\nfiles = ['48923', '48930', '48945']\nhgrepos = []\nissue_num = 39776\nkeywords = ['patch', '3.7regression']\nmessage_count = 25.0\nmessages = ['362807', '362812', '362820', '362825', '362834', '362865', '362869', '362875', '362876', '362877', '362878', '362880', '362882', '362885', '363192', '363208', '363239', '363240', '363248', '363266', '363267', '363270', '363274', '363338', '363406']\nnosy_count = 6.0\nnosy_names = ['vstinner', 'ned.deily', 'skrah', 'lukasz.langa', 'yselivanov', 'boytsovea']\npr_nums = ['18746', '18752', '18753']\npriority = 'release blocker'\nresolution = 'fixed'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = 'crash'\nurl = 'https://bugs.python.org/issue39776'\nversions = ['Python 3.7', 'Python 3.8', 'Python 3.9']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/boytsovea","@type":"Person","name":"boytsovea"},"datePublished":"2020-02-27T15:25:13.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":25},"url":"https://github.com/83957/cpython/issues/83957"}