The 7.5 and 4.15 kernel was causing a crash under load when only zfs io was happening and then did something to cause ext4 root file system i/o. The system locked up so hard that the console keyboard cap lock did not even work.
I have downgraded to 4.13 which solves the system lockup and the mail for for scrub starting working. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/1787309 Title: zed not sending mail on scrub finish Status in zfs-linux package in Ubuntu: New Bug description: ZED should be sending email when scrub finishes but I do not get any email. I did update modify the zed.rc file to end the email by setting the following ZED_EMAIL_ADDR="root" ZED_EMAIL_PROG="mail" ZED_NOTIFY_VERBOSE=1 I tested to verify mail work. I did the following: echo testing | mail -s testit root I did get the mail so the mail system work. I also check syslog to see verify that zed saw the event. Aug 15 22:45:56 mike-think systemd[1]: Started ZFS Event Daemon (zed). Aug 15 22:45:56 mike-think zed[5576]: ZFS Event Daemon 0.6.5.6-0ubuntu23 (PID 5576) Aug 15 22:45:56 mike-think zed[5576]: Processing events since eid=7 Aug 15 22:48:38 mike-think zed: eid=8 class=history_event pool=lxc Aug 15 22:48:38 mike-think zed: eid=9 class=scrub_finish pool=lxc mike@mike-think:/var/log$ lsb_release -rd Description: Ubuntu 16.04.5 LTS Release: 16.04 mike@mike-think:/var/log$ mike@mike-think:/var/log$ apt-cache policy zfs-zed zfs-zed: Installed: 0.6.5.6-0ubuntu23 Candidate: 0.6.5.6-0ubuntu23 Version table: *** 0.6.5.6-0ubuntu23 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 0.6.5.6-0ubuntu8 500 500 http://us.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages mike@mike-think:/var/log$ ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: zfs-zed 0.6.5.6-0ubuntu23 ProcVersionSignature: Ubuntu 4.15.0-32.35~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-32-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 Date: Wed Aug 15 22:50:27 2018 InstallationDate: Installed on 2016-07-24 (752 days ago) InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: zfs-linux UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.zfs.zed.d.zed.rc: 2018-08-15T22:44:06.422894 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1787309/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
