the gentoo-sources ebuilds were marked -hppa by jer but with no information as to why, but the vanilla-sources ebuilds all remain ~hppa. this needs to be documented. it started with 4.0.5 here: commit 47946d29978be5baf9b9bf957bee7d2840909dd1 Author: Jeroen Roovers <jer@gentoo.org> Date: Mon Jun 29 06:38:26 2015 +0000 Mark -hppa (bug #552336). and then later all recent versions here: commit e8d0f9ed453ae11662df6f03c7a2fb7f4e43544f Author: Jeroen Roovers <jer@gentoo.org> Date: Sat Jul 18 08:12:00 2015 +0000 Mark -hppa.
I am seeing a reliable and fast kernel for the first time in many months with sys-kernel/gentoo-sources-4.5 A straightforward rebuild of binutils, glibc and gcc gave no segmentation faults or other anomalous memory accesses and it's now at package 162 of 740 of an `emerge --keep-going -e system` without any failing packages. There seems to be an unresolved and recent issue with some SCSI controllers in 4.5 though. ("[BUG] "block: make generic_make_request handle arbitrarily sized bios" breaks boot on parisc-linux")
https://gitweb.gentoo.org/repo/gentoo.git/commit/sys-kernel/gentoo-sources?id=ca9edba30c930e40ed5ba5c22d9b6776060c8f3a The trouble is that the kernel people want only LTS releases marked stable, and will remove non-LTS ebuilds with stable markings, and will complain loudly.