On Tue, 2024-08-27 at 08:01 +0100, Barry wrote: > Sync is not used on shutdown. > It is the action of umount that causes all data to be flushed out to the disk. > As you say that may take a while if the disk is slow, USB, or has just had a huge > amount of data written to it just before shutdown us triggered. > > However it has always been user services that are slow to exit, and often > are timed out, that are the cause of slow shutdowns in my experience. I used to get the impression that some user things don't pay any attention to being told to shutdown. A long time ago the biggest pain I had when trying to get something to shutdown, but couldn't, was when something had started swapping. That was usually a web browser which had suddenly barfed on some badly designed website, or one with badly encoded video streaming content. I would still get something similar back in Fedora 36 era with some badly encoded video MPEG files. Suddenly the player would start making a mess on the screen, and if you weren't quick enough to kill the player immediately you might have to pull the power plug out to stop it. -- uname -rsvp Linux 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
