This is the correct version to use that Microsoft makes available.

"Microsoft Visual C++ Compiler for Python 2.7"

https://www.microsoft.com/en-gb/download/details.aspx?id=44266

Your heap crashes are expected if you do not use the above compiler and its 
associated runtime.

Barry


On Friday, 8 January 2021 18:51:47 GMT Matthews Brian wrote:
> Ok thanks. As the rest of Python2.7 is built with VS2008, I will try 
> rebuilding with that.
> 
> Brian
> 
> -----Original Message-----
> From: Cryptography-dev 
> <cryptography-dev-bounces+brian.matthews=vaisala....@python.org> On Behalf Of 
> Paul Kehrer
> Sent: January 8, 2021 9:54 AM
> To: cryptography-dev@python.org
> Subject: Re: [Cryptography-dev] Heap error in _openssl.pyd
> 
> We don't have the symbol files, but it was built with VS 2010 (scripts found 
> here: 
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fpyca%2Finfra%2Ftree%2Fmaster%2Fwindows%2Fopenssl&amp;data=04%7C01%7Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632399827%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=G8fvEPiFnlraSXitzLryVi8uwraKL0a2iIgE9efC0Fo%3D&amp;reserved=0)
> 
> -Paul
> 
> On Fri, Jan 8, 2021 at 11:36 AM Matthews Brian <brian.matth...@vaisala.com> 
> wrote:
> >
> > Hi,
> >
> >
> >
> >   We are using pyOpenSSL 20.0.1 with cryptography 3.3.1 in Python 2.7.17 
> > x64. This is running on Microsoft Windows 2019.
> >
> >
> >
> > The pyOpenSSL is being used as part of a twisted Web implementation, 
> > handling TLS HTTPS communications.
> >
> >
> >
> > We are experiencing random crashes in the _openssl.pyd module. On some 
> > sites it is once per month, on other sites it is once per day.
> >
> >
> >
> > The crash dump shows a HEAP error originating in the _openssl.pyd module 
> > during TLS negotiation.
> >
> >
> >
> > Has anyone else experienced this
> > Are the symbol pdb files available for the _openssl.pyd object What VS 
> > studio version are the wheels for 2.7 built with
> >
> >
> >
> > Thanks
> >
> >
> >
> > Brian.
> >
> >
> >
> >
> >
> > _______________________________________________
> > Cryptography-dev mailing list
> > Cryptography-dev@python.org
> > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail
> > .python.org%2Fmailman%2Flistinfo%2Fcryptography-dev&amp;data=04%7C01%7
> > Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7
> > 393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632409829%7CUnknown%7
> > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXV
> > CI6Mn0%3D%7C1000&amp;sdata=sxYsgSL4BRuHbrJfZxlvVQU5Zh6zEC7epyRoU0FOhJ8
> > %3D&amp;reserved=0
> _______________________________________________
> Cryptography-dev mailing list
> Cryptography-dev@python.org
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.python.org%2Fmailman%2Flistinfo%2Fcryptography-dev&amp;data=04%7C01%7Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632409829%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=sxYsgSL4BRuHbrJfZxlvVQU5Zh6zEC7epyRoU0FOhJ8%3D&amp;reserved=0
> _______________________________________________
> Cryptography-dev mailing list
> Cryptography-dev@python.org
> https://mail.python.org/mailman/listinfo/cryptography-dev
> 




_______________________________________________
Cryptography-dev mailing list
Cryptography-dev@python.org
https://mail.python.org/mailman/listinfo/cryptography-dev

Reply via email to