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&data=04%7C01%7Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632399827%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=G8fvEPiFnlraSXitzLryVi8uwraKL0a2iIgE9efC0Fo%3D&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&data=04%7C01%7 > > Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7 > > 393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632409829%7CUnknown%7 > > CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXV > > CI6Mn0%3D%7C1000&sdata=sxYsgSL4BRuHbrJfZxlvVQU5Zh6zEC7epyRoU0FOhJ8 > > %3D&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&data=04%7C01%7Cbrian.matthews%40vaisala.com%7C9568a9cebccd4386a7ee08d8b3fe6d05%7C6d7393e041f54c2e9b124c2be5da5c57%7C0%7C0%7C637457252632409829%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=sxYsgSL4BRuHbrJfZxlvVQU5Zh6zEC7epyRoU0FOhJ8%3D&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
