Message 264963 - Python tracker

Message264963

Author	pitrou
Recipients	Alex.Willmer, ncoghlan, pitrou, rhettinger, xdegaye, yan12125
Date	2016-05-06.11:11:51
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1462533111.91.0.514063297905.issue26939@psf.upfronthosting.co.za>
In-reply-to

Content
I suspect this bug is caused by memory ordering differences between x86 and ARM (see https://en.wikipedia.org/wiki/Memory_ordering#Runtime_memory_ordering ), which is why it may not reproduce easily (may depend on the particular CPU implementation and/or various timing subtleties in the tests themselves). Xavier / Chi, can you tell if Android has stdatomic.h? See Include/pyatomic.h for the difference it makes.

Content

I suspect this bug is caused by memory ordering differences between x86 and ARM (see https://en.wikipedia.org/wiki/Memory_ordering#Runtime_memory_ordering ), which is why it may not reproduce easily (may depend on the particular CPU implementation and/or various timing subtleties in the tests themselves).

Xavier / Chi, can you tell if Android has stdatomic.h? See Include/pyatomic.h for the difference it makes.

History
Date	User	Action	Args
2016-05-06 11:11:51	pitrou	set	recipients: + pitrou, rhettinger, ncoghlan, xdegaye, Alex.Willmer, yan12125
2016-05-06 11:11:51	pitrou	set	messageid: <1462533111.91.0.514063297905.issue26939@psf.upfronthosting.co.za>
2016-05-06 11:11:51	pitrou	link	issue26939 messages
2016-05-06 11:11:51	pitrou	create