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Author brandtbucher
Recipients FFY00, brandtbucher, gvanrossum, jefferyto, lukasz.langa, methane, obfusk, pablogsal, rhettinger, serhiy.storchaka, vstinner
Date 2021-09-03.15:55:17
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Marked as misclassified Yes
Message-id <>
I'm compiling Clang now to try to reproduce using a UBSan build (I'm on Ubuntu, though).

I'm not entirely familiar with how these sanitizer builds work... could the implication be that we're hitting undefined behavior at some point? Or is it just a red herring?

Note also that the "set([float('nan'), b'a', b'b', b'c', 'x', 'y', 'z'])" and "frozenset([float('nan'), b'a', b'b', b'c', 'x', 'y', 'z'])" tests seem to be working just fine... meaning their ordering on this buildbot is different under PYTHONHASHSEEDs 0 and 1 (as expected). It may still be a platform-or-configuration-dependent ordering, though.

Raymond: off the top of your head, are there any obvious reasons this could be happening?
Date User Action Args
2021-09-03 15:55:17brandtbuchersetrecipients: + brandtbucher, gvanrossum, rhettinger, vstinner, methane, lukasz.langa, serhiy.storchaka, pablogsal, FFY00, jefferyto, obfusk
2021-09-03 15:55:17brandtbuchersetmessageid: <>
2021-09-03 15:55:17brandtbucherlinkissue37596 messages
2021-09-03 15:55:17brandtbuchercreate