new memcpy implementation exposes bugs in some software.
Hi All,
Apparently the 64 bit version of memcpy in the Fedora 14 glibc will do the copy in the downwards rather than the usual upwards direction on some processors. This has exposed bugs where the the source and destination overlap in memory. Report and discussion can be found at fedora bugzillahttps://bugzilla.redhat.com/show_bug.cgi?id=638477. I don't know that numpy has any problems of this sort but it is worth keeping in mind.
Chuck
On 11/11/2010 10:54 AM, Charles R Harris wrote:
Hi All,
Apparently the 64 bit version of memcpy in the Fedora 14 glibc will do the copy in the downwards rather than the usual upwards direction on some processors. This has exposed bugs where the the source and destination overlap in memory. Report and discussion can be found at fedora bugzilla https://bugzilla.redhat.com/show_bug.cgi?id=638477. I don't know that numpy has any problems of this sort but it is worth keeping in mind.
It would be kind of cool to get a bug report from Linus, though :)
David
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Charles R Harris -
David