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Code Issues Projects Releases Wiki Activity

app-emulation/xen: warn about credit2 scheduler instability

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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@gmail.com>
Signed-off-by: Yixun Lan <dlan@gentoo.org>
This commit is contained in:
Tomáš Mózes
2020-03-06 07:40:30 +01:00
committed by Yixun Lan
parent 0e508f8e2e
commit 4e1a0667c9
2 changed files with 18 additions and 0 deletions
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9
app-emulation/xen/xen-4.12.2.ebuild
View File

@@ -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"
}

9
app-emulation/xen/xen-4.13.0-r1.ebuild
View File

@@ -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"
}