This issue tracker has been migrated to GitHub, and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

Author vstinner
Recipients davin, larry, serhiy.storchaka, vstinner
Date 2017-10-25.15:00:21
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
> PR 3844 restores the behavior of 2.7 and 3.3. I propose to merge it first, and develop other enhancements later.

Please don't. This PR reintroduced a bug that I fixed in bpo-18408:

commit c4266360fc70745d49b09f2c29cda91c1a007525
Author: Victor Stinner <>
Date:   Tue Jul 9 00:44:43 2013 +0200

    Issue #18408: Fix _PyMem_DebugRealloc()
    Don't mark old extra memory dead before calling realloc(). realloc() can fail
    and realloc() must not touch the original buffer on failure.
    So mark old extra memory dead only on success if the new buffer did not move
    (has the same address).
Date User Action Args
2017-10-25 15:00:21vstinnersetrecipients: + vstinner, larry, serhiy.storchaka, davin
2017-10-25 15:00:21vstinnersetmessageid: <>
2017-10-25 15:00:21vstinnerlinkissue31626 messages
2017-10-25 15:00:21vstinnercreate