Occurs while suspend to ram, attempted pm_trace (sudo sh -c "sync && echo 1 > /sys/power/pm_trace && pm-suspend"): ... [ 1.196689] Key type encrypted registered [ 1.196712] AppArmor: AppArmor sha1 policy hashing enabled [ 1.442937] evm: HMAC attrs: 0x1 [ 1.444273] Magic number: 12:578:178 [ 1.444323] acpi device:0e: hash matches [ 1.444345] platform: hash matches [ 1.444671] rtc_cmos 00:02: setting system clock to 2016-12-22 12:09:40 UTC (1482408580) [ 1.444925] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 1.444927] EDD information not available. [ 1.445014] PM: Hibernation image not present or could not be loaded. [ 1.445962] Freeing unused kernel memory: 1480K (ffffffff81f42000 - ffffffff820b4000) ...
More data points: https://errors.ubuntu.com/oops/3a52bdf6-01b6-11e7-b175-fa163e839e11 https://errors.ubuntu.com/oops/8423d2c6-01b6-11e7-84d4-fa163ebeb28a -- 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/1670137 Title: zfs l2arc cache inhibits proper suspend Status in zfs-linux package in Ubuntu: New Bug description: Please see: 2017-03-05 09:03 2017-03-05 14:03 UTC KernelOops linux-image-4.4.0-31-generic https://errors.ubuntu.com/oops/7bb2122e-01b1-11e7-ba2a-fa163e839e11 Running zfs [root] with l2arc cache enabled fails to suspend properly, screen goes blank but power stays on, when I disable the cache it works fine. Unsure if this happens with non-root install of zfs, slog does not cause this problem. Linux mp 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ii zfs-initramfs 0.6.5.6-0ubuntu15 all Native OpenZFS root filesystem capabilities for Linux ii zfs-zed 0.6.5.6-0ubuntu15 amd64 OpenZFS Event Daemon (zed) ii zfsutils-linux 0.6.5.6-0ubuntu15 amd64 Native OpenZFS management utilities for Linux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1670137/+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
