Re: [systemd-devel] reliable way to check if udev is ready to serve requests
Am Do., 11. Okt. 2018 um 08:54 Uhr schrieb Lennart Poettering : > > On Di, 09.10.18 22:24, Michael Biebl (mbi...@gmail.com) wrote: > > > Hi, > > > > is there a reliable way to check from a shell script that udevd is > > running and able to serve request? > > Say you want to run "udevadm trigger" but only if udevd is actually > > able to process that request. > > > > There is a udev_ctrl_send_ping() function, which looks like it could > > be perhaps used for those. Unfortunately this is not exposed via > > "udevadm control" > > systemctl is-running systemd-udevd-kernel.socket I forgot to add, that systemd-udevd is not necessarily started by systemd in this particular case. So I can't use systemctl... -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth? ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] Use of SystemKeepFree=
Hello all, looking at the current code, SystemKeepFree= is not accounted for when doing vacuuming, only SystemMaxUse= is used. There was an ancient RHEL-7 bug for systemd-219 with the exact same problem. Now I'm not sure if that's actually a problem or not, but the documentation suggests that SystemKeepFree= should be honored. Is it a bug? When is SystemKeepFree= actually used? Why have SystemKeepFree= at all if it's the "other way around" of SystemMaxUse= ? Cheers, -- Jan Synacek Software Engineer, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] reliable way to check if udev is ready to serve requests
On Di, 09.10.18 22:24, Michael Biebl (mbi...@gmail.com) wrote: > Hi, > > is there a reliable way to check from a shell script that udevd is > running and able to serve request? > Say you want to run "udevadm trigger" but only if udevd is actually > able to process that request. > > There is a udev_ctrl_send_ping() function, which looks like it could > be perhaps used for those. Unfortunately this is not exposed via > "udevadm control" systemctl is-running systemd-udevd-kernel.socket Lennart -- Lennart Poettering, Red Hat ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
