On Sun, 2021-06-13 at 14:38 -0600, Chris Murphy wrote: > On Sun, Jun 13, 2021 at 5:26 AM Patrick O'Callaghan > <pocallag...@gmail.com> wrote: > > > > I'm 99% certain it's being caused by my external USB dock starting > > up. > > See my reply to Ed. The dock is not mounted at boot, but has a > > BTRFS > > filesystem that (possibly) the kernel insists on checking before > > the > > rest of the startup can proceed. This is speculation at the moment. > > > > systemd-analyze blame shows a long delay in a unit I created to > > automatically power down the dock if it's not mounted: > > > > $ systemd-analyze blame|head > > 4min 18.016s dock-watch.service > > 30.517s systemd-udev-settle.service > > 15.273s logrotate.service > > 6.274s NetworkManager-wait-online.service > > 5.765s raid.mount > > 5.452s plymouth-quit-wait.service > > 5.038s akmods.service > > 4.541s upower.service > > 4.427s sssd.service > > > > I've uploaded the dock-watch unit and the scripts it calls, > > together > > with the automount unit, to: > > > > https://drive.google.com/drive/folders/1BT5w4u7TzBmWbhx97sWvfOErCIUylrik?usp=sharing > > dock-wait script contains: > RAID=/dev/sdd > > This may not be reliable because /dev nodes frequently change between > reboots. You're better off using /dev/disk/by-... any of them are > better than node. You can use label, uuid, wwn, whatever. > > I actually use a udev rule for idle spin down: > > $ cat /etc/udev/rules.d/69-hdparm.rules > ACTION=="add", SUBSYSTEM=="block", \ > KERNEL=="sd*[!0-9]", \ > ENV{ID_SERIAL_SHORT}=="WDZ47F0A", \ > RUN+="/usr/sbin/hdparm -B 100 -S 252 /dev/disk/by-id/wwn- > 0x5000c500a93cae8a" > $
Good point. I was already nervous about a hard-wired device name though it hasn't bitten me so far. poc _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
