>> Do you also have to re-run mkswap when switching back to the older, working kernel, or does simply using the other kernel let you run swapon on the same file that doesn't work with the newer kernel?
Nope, same swap file / swap partition, without have to re-run mkswap. >> Also what does getconf PAGESIZE say under the broken kernel? Both kernel say 4096 . -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1788321 Title: swapon failed: invalid argument Status in linux package in Ubuntu: Confirmed Status in util-linux package in Ubuntu: Invalid Bug description: Environment: - Ubuntu 18.04.1 LTS - Linux 4.15.0-32-generic i686 Description: When I try to mount my swap partition or my swap file, I get "swapon failed: invalid argument" . Steps to reproduce: 1) sudo bash 2) dd if=/dev/zero of=/swapfile bs=1024 count=524288 3) mkswap /swapfile 4) chown root:root /swapfile 5) chmod 0600 /swapfile 6) swapon /swapfile Last execution returns "swapon failed: invalid argument" . I'm almost sure it's a bug because I have no problems using Linux 4.15.0-29-generic instead of Linux 4.15.0-32-generic. Also, no problems using Ubuntu 18.04.1 LTS Live CD. Regards. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788321/+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
