This glibc patch from fedora seems relevant here, especially given the mention of python... https://sourceware.org/ml/libc-alpha/2014-10/msg00134.html But the last paragraph there suggests that the patch it proposes won't help enough on arm64 in particular. -JimC -- James Cloos <cloos at jhcloos.com> OpenPGP: 0x997A9F17ED7DAEA6