On 14.02.2017 08:43, Rebecca N. Palmer wrote: > Found the problem: the affected functions ( > https://sources.debian.net/src/theano/0.8.2-4/theano/sparse/opt.py/#L862 , > https://sources.debian.net/src/theano/0.8.2-4/theano/sparse/opt.py/#L1902 ) > cast a pointer-to-intptr_t (64 bit) to a pointer-to-int (32-bit). > > Which isn't just broken on big-endian systems, it's a strict aliasing > violation *everywhere* (i.e. technically undefined behaviour with > optimization on, which it is by default, though it appears to work in > practice). > > (I expect to post a patch tonight: the obvious has a potential overflow > issue, and it also needs a c_code_cache_version change to make the fix be > used in existing installs).
That would be sensational. #835531 doesn't keep up being RC, that would mean that we're through to Stretch if this bug could be closed. Much thx in advance! Daniel -- 4096R/DF5182C8 Debian Developer (sten...@debian.org) http://www.danielstender.com/ -- debian-science-maintainers mailing list debian-science-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/debian-science-maintainers
