Why does my Celery worker die with signal 6 - SIGIOT? -

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i'm running celery based application. every , see following in log:

[... error/mainprocess] task [...] raised unexpected: workerlosterror('worker exited prematurely: signal 6 (sigiot).',) traceback (most recent call last): file "/usr/local/lib/python2.7/dist-packages/billiard/pool.py", line 1170, in mark_as_worker_lost human_status(exitcode)), workerlosterror: worker exited prematurely: signal 6 (sigiot).

perhaps can come explanation this?


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