** Description changed: + [Impact] + I've just learned that systemd is setting kernel.sysrq to 16 in /usr/lib/sysctl.d/50-default.conf. This is inconsistent with /etc/sysctl.d/10-magic-sysrq.conf which intentionally sets it to 176 by default. systemd should drop its setting to defer to the file that we have been carrying in procps for a very long time. + + Therefore, users can only sync their storage but not do any other + actions using the magic sysrq key. + + [Test Plan] + + $ sysctl kernel.sysrq + => This should show "kernel.sysrq = 176" as set by /etc/sysctl.d/10-magic-sysrq.conf + $ sysctl net.ipv4.conf.all.rp_filter + => This should show "net.ipv4.conf.all.rp_filter=2" as set by /etc/sysctl.d/10-network-security.conf + + [Where problems could occur] + + * This patch changes systemd's sysctl configuration in /lib/sysctl.d/*.conf + * If something is broken it could fail to apply any of systemd's sysctl configuration, but Ubuntu's defaults from /etc/sysctl.d/*.conf would still be in place. + + [Other Info] + + * None
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1962038 Title: wrong sysrq value in /usr/lib/sysctl.d/50-default.conf Status in systemd package in Ubuntu: Triaged Status in systemd source package in Impish: New Status in systemd source package in Jammy: Triaged Bug description: [Impact] I've just learned that systemd is setting kernel.sysrq to 16 in /usr/lib/sysctl.d/50-default.conf. This is inconsistent with /etc/sysctl.d/10-magic-sysrq.conf which intentionally sets it to 176 by default. systemd should drop its setting to defer to the file that we have been carrying in procps for a very long time. Therefore, users can only sync their storage but not do any other actions using the magic sysrq key. [Test Plan] $ sysctl kernel.sysrq => This should show "kernel.sysrq = 176" as set by /etc/sysctl.d/10-magic-sysrq.conf $ sysctl net.ipv4.conf.all.rp_filter => This should show "net.ipv4.conf.all.rp_filter=2" as set by /etc/sysctl.d/10-network-security.conf [Where problems could occur] * This patch changes systemd's sysctl configuration in /lib/sysctl.d/*.conf * If something is broken it could fail to apply any of systemd's sysctl configuration, but Ubuntu's defaults from /etc/sysctl.d/*.conf would still be in place. [Other Info] * None To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1962038/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
