See bug #333639 for the background. We currently have a check in net-misc/networkmanager ebuilds that errors out if CONFIG_SYSFS_DEPRECATED_V2 is used in the kernel config; this kernel config turns on deprecated sysfs layout by default, which confuses udev, and that in turn causes networkmanager to fail. As pointed out by Pavel Šimerda, it would make much more sense to move this check into udev ebuilds. Judging by the git log, udev is completely incompatible with CONFIG_SYSFS_DEPRECATED_V2 since at least version 150. I assume that the same is true for eudev, considering that it was forked from udev only recently.
We carried such warning for sys-fs/udev for a very long time in sys-fs/udev and it's still on 171's ebuild So you are suggesting on reintroducing the old kernel warnings, others too? ~INOTIFY_USER ~SIGNALFD ~!SYSFS_DEPRECATED ~!SYSFS_DEPRECATED_V2
(In reply to comment #1) > We carried such warning for sys-fs/udev for a very long time in sys-fs/udev > and it's still on 171's ebuild > > So you are suggesting on reintroducing the old kernel warnings, others too? > > ~INOTIFY_USER ~SIGNALFD ~!SYSFS_DEPRECATED ~!SYSFS_DEPRECATED_V2 and ~!IDE ~BLK_DEV_BSG
done, moving to eudev maintainers. http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/udev/udev-197-r4.ebuild?r1=1.28&r2=1.29 http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/udev/udev-197-r5.ebuild?r1=1.1&r2=1.2 http://sources.gentoo.org/viewvc.cgi/gentoo-x86/sys-fs/udev/udev-9999.ebuild?r1=1.167&r2=1.168
Eudev ebuilds have always had these checks. Closing.