commit: 4e1a0667c9be4b76c4eef62be717be4ba288a147 Author: Tomáš Mózes <hydrapolic <AT> gmail <DOT> com> AuthorDate: Fri Mar 6 06:40:30 2020 +0000 Commit: Yixun Lan <dlan <AT> gentoo <DOT> org> CommitDate: Fri Mar 6 22:33:09 2020 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4e1a0667
app-emulation/xen: warn about credit2 scheduler instability Bug: https://bugs.gentoo.org/710140 Closes: https://github.com/gentoo/gentoo/pull/14842 Package-Manager: Portage-2.3.89, Repoman-2.3.20 Signed-off-by: Tomáš Mózes <hydrapolic <AT> gmail.com> Signed-off-by: Yixun Lan <dlan <AT> gentoo.org> app-emulation/xen/xen-4.12.2.ebuild | 9 +++++++++ app-emulation/xen/xen-4.13.0-r1.ebuild | 9 +++++++++ 2 files changed, 18 insertions(+) diff --git a/app-emulation/xen/xen-4.12.2.ebuild b/app-emulation/xen/xen-4.12.2.ebuild index ec19a8729db..078c4ede678 100644 --- a/app-emulation/xen/xen-4.12.2.ebuild +++ b/app-emulation/xen/xen-4.12.2.ebuild @@ -153,4 +153,13 @@ pkg_postinst() { elog "You can optionally block the installation of /boot/xen-syms by an entry" elog "in folder /etc/portage/env using the portage's feature INSTALL_MASK" elog "e.g. echo ${msg} > /etc/portage/env/xen.conf" + + ewarn + ewarn "Xen 4.12+ changed the default scheduler to credit2 which can cause" + ewarn "domU lockups on multi-cpu systems. The legacy credit scheduler seems" + ewarn "to work fine." + ewarn + ewarn "Add sched=credit to xen command line options to use the legacy scheduler." + ewarn + ewarn "https://wiki.gentoo.org/wiki/Xen#Xen_domU_hanging_with_Xen_4.12.2B"; } diff --git a/app-emulation/xen/xen-4.13.0-r1.ebuild b/app-emulation/xen/xen-4.13.0-r1.ebuild index 2c03982f660..7da3187cee2 100644 --- a/app-emulation/xen/xen-4.13.0-r1.ebuild +++ b/app-emulation/xen/xen-4.13.0-r1.ebuild @@ -153,4 +153,13 @@ pkg_postinst() { elog "You can optionally block the installation of /boot/xen-syms by an entry" elog "in folder /etc/portage/env using the portage's feature INSTALL_MASK" elog "e.g. echo ${msg} > /etc/portage/env/xen.conf" + + ewarn + ewarn "Xen 4.12+ changed the default scheduler to credit2 which can cause" + ewarn "domU lockups on multi-cpu systems. The legacy credit scheduler seems" + ewarn "to work fine." + ewarn + ewarn "Add sched=credit to xen command line options to use the legacy scheduler." + ewarn + ewarn "https://wiki.gentoo.org/wiki/Xen#Xen_domU_hanging_with_Xen_4.12.2B"; }
