Message 211436 - Python tracker

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In-reply-to
Author	itamarst
Recipients	JohanAR, itamarst, sbt
Date	2014年02月17日.18:50:43
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1392663043.65.0.517457527868.issue14976@psf.upfronthosting.co.za>

Content
This is not specifically a signal issue; it can happen with garbage collection as well if you have a Queue.put that runs in __del__ or a weakref callback function. This can happen in real code. In my case, a thread that reads log messages from a Queue and writes them to disk. The thread putting log messages into the Queue can deadlock if GC happens to cause a log message to be written right after Queue.put() acquired the lock. (see https://github.com/itamarst/crochet/issues/25).

Content

This is not specifically a signal issue; it can happen with garbage collection as well if you have a Queue.put that runs in __del__ or a weakref callback function.
This can happen in real code. In my case, a thread that reads log messages from a Queue and writes them to disk. The thread putting log messages into the Queue can deadlock if GC happens to cause a log message to be written right after Queue.put() acquired the lock.
(see https://github.com/itamarst/crochet/issues/25).

History
Date	User	Action	Args
2014年02月17日 18:50:43	itamarst	set	recipients: + itamarst, sbt, JohanAR
2014年02月17日 18:50:43	itamarst	set	messageid: <1392663043.65.0.517457527868.issue14976@psf.upfronthosting.co.za>
2014年02月17日 18:50:43	itamarst	link	issue14976 messages
2014年02月17日 18:50:43	itamarst	create

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