Author vstinner
Recipients benjamin.peterson, gregory.p.smith, izbyshev, miss-islington, pitrou, serhiy.storchaka, siddhesh, skrah, steve.dower, vstinner
Date 2018-11-30.22:53:05
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Message-id <1543618385.35.0.788709270274.issue33015@psf.upfronthosting.co.za>
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> why was that only an issue on 2.7?

I added PyMem_RawMalloc() to Python 3.4 and this function must be thread-safe.

https://docs.python.org/dev/c-api/memory.html#raw-memory-interface
"These functions are thread-safe, the GIL does not need to be held."

I replaced PyMem_RawMalloc() with PyMem_Malloc() when I backported the change, but I didn't know that PyMem_Malloc() isn't thread-safe *in debug mode*!

Gregory: do you think that it would be be crazy to fix PyMem_Malloc() to make it thread-safe in debug mode as well? I implemented a fix: PR 10828.
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Date User Action Args
2018-11-30 22:53:05vstinnersetrecipients: + vstinner, gregory.p.smith, pitrou, benjamin.peterson, skrah, serhiy.storchaka, steve.dower, siddhesh, izbyshev, miss-islington
2018-11-30 22:53:05vstinnersetmessageid: <1543618385.35.0.788709270274.issue33015@psf.upfronthosting.co.za>
2018-11-30 22:53:05vstinnerlinkissue33015 messages
2018-11-30 22:53:05vstinnercreate