[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-30 Thread Erik Bray
Erik Bray added the comment: Well, we'll see how long it takes me to get them to respond on that. If it's not too much trouble then I'll be happy to drop this issue. -- ___ Python tracker __

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-30 Thread Serhiy Storchaka
Serhiy Storchaka added the comment: This is a problem of AppVeyor. It should update Cygwin to a bugfix release. 2.8.0 contains other bugs. -- resolution: -> out of date stage: patch review -> resolved status: open -> closed ___ Python tracker

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-30 Thread Erik Bray
Erik Bray added the comment: Well, I agree there's an unfortunate trade-off here: One can skip the test, allowing the test suite to work on slightly older versions of Cygwin, from before this issue was fixed. However, I then lose regression testing on newer versions. My personal feeling in

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-27 Thread Serhiy Storchaka
Serhiy Storchaka added the comment: According to your reference a problem is fixed in recent Cygwin versions, isn't? Skipping the test on Cygwin means that wcsxfrm() will be untested on this platform. Future regressions will be unnoticed. -- ___ Py

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-27 Thread Erik Bray
Erik Bray added the comment: To be clear, are you saying there shouldn't be a workaround to the underlying issue (I agree), or are you saying the test skip shouldn't even be added? I'm in favor of just skipping the test since it's still a problem on (currently) recent Cygwin versions. And it'

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-27 Thread Serhiy Storchaka
Serhiy Storchaka added the comment: Since this bug has been fixed in Cygwin, I don't think we should add a workaround for it. The expected date of Python 3.7 release is 2018-06-15, this is far from the date of releasing the fixed Cygwin. -- nosy: +serhiy.storchaka ___

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-27 Thread Erik Bray
Change by Erik Bray : -- keywords: +patch pull_requests: +4116 stage: -> patch review ___ Python tracker ___ ___ Python-bugs-list ma

[issue31883] Cygwin: heap corruption bug in wcsxfrm

2017-10-27 Thread Erik Bray
New submission from Erik Bray : There is an acknowledged bug in Cygwin's implementation of wcsxfrm() [1] that can cause heap corruption in certain cases. This bug has since been fixed in Cygwin 2.8.1-1 [2] and all current and future releases. However, that was relatively recent (July 2017) s