Pedro Lacerda added the comment:
Maybe useful at mmapmodule.c replacing
/* SVR4 method to map anonymous memory is to open /dev/zero */
fd = devzero = _Py_open("/dev/zero", O_RDWR);
tagname is unused at UNIX version of new_mmap_object() so if provided something
like could be added for Linux only
fd = memfd_create(tagname, O_RDWR);
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nosy: +Pedro Lacerda
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<http://bugs.python.org/issue26836>
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