From: Justin Forbes on gitlab.com https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1144#note_595919862 > glibc 2.34 will detect `-march=z14` and refuse to run on z13 or earlier, to avoid hard-to-diagnose crashes later. We learned the hard way that this very desirable during the ppc64le bringup. Would it still detect this if the kernel running in the build root is a z13 kernel? There are kernel advantages to limiting supported hardware, but z13 added the vector bits, I don't recall z14 adding much instruction wise, so perhaps there is no benefit to building userspace with z14? _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure