Package Details: zfs-dkms 0.8.3-2

Git Clone URL: (read-only, click to copy)
Package Base: zfs-dkms
Description: Kernel modules for the Zettabyte File System.
Upstream URL:
Licenses: CDDL
Conflicts: spl-dkms
Provides: SPL-MODULE=0.8.3, ZFS-MODULE=0.8.3, spl-dkms, zfs
Replaces: spl-dkms
Submitter: isiachi
Maintainer: eschwartz
Last Packager: eschwartz
Votes: 91
Popularity: 2.14
First Submitted: 2015-08-31 12:01
Last Updated: 2020-02-28 17:44

Latest Comments

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iusrlinearb commented on 2020-03-26 21:17

Thanks @Achelous - done, this is exactly the problem and knowing it's 1/32 means I can at least fix to 8GB for now.

Achelous commented on 2020-03-26 19:58


I noticed this bug in zfs a few months ago. It doesn't let you set zfs_arc_max to a value less than the default arc_c_min, which is 1/32 of all RAM.

I've raised a GitHub issue here:

Please feel free to comment on the issue if you think you're seeing the same thing.

iusrlinearb commented on 2020-03-25 15:36

I'm struggling to stop zfs from consuming lots of RAM.

# cat /proc/spl/kstat/zfs/arcstats | grep c_max
c_max                           4    135097968640

If I look at arcstats, I see it growing rapidly towards c_max:

# cat /proc/spl/kstat/zfs/arcstats | grep size
size                            4    89817294664
[snipped the rest]

I've tried the obvious things. E.g. adding options zfs zfs_arc_max=5368709120 into /etc/modprobe.d/zfs.conf (and rebooting), adding zfs.zfs_arc_max=5368709120 to the end of my GRUB_CMDLINE_LINUX_DEFAULT and grub-mkconfig, rebooting.

I can see that the values are correctly being picked up - e.g. # cat /sys/module/zfs/parameters/zfs_arc_max 5368709120

Have looked at the wiki, for example

Also searched forums for zfs_arc_max but no useful messages. Anywhere else I should look? Thanks.

eschwartz commented on 2020-03-23 15:52


Comment deleted, next time you attempt personal attacks on a Trusted User I'll just suspend your account.

eschwartz commented on 2020-03-22 16:01


Doesn't appear to build, at least on my system.

==> Verifying source file signatures with gpg...
zfs-0.8.3.tar.gz ... FAILED (unknown public key 6AD860EED4598027)
==> ERROR: One or more PGP signatures could not be verified!


This package doesn't support people who have failed to read the wiki page, or cannot interpret error messages.

risto3 commented on 2020-03-17 08:20

I'm using zfs-dkms on x86_64 5.4.25-2-lts is it normal to see the following in boot logs?

mars 16 07:04:09 smicro kernel: zlua: loading out-of-tree module taints kernel.
mars 16 07:04:09 smicro kernel: zlua: module license 'MIT' taints kernel.
mars 16 07:04:09 smicro kernel: Disabling lock debugging due to kernel taint
mars 16 07:04:09 smicro kernel: zlua: module verification failed: signature and/or required key missing - tainting kernel

SenileAnimal commented on 2020-03-14 01:49

Great idea adding the 5.5 patch. Now that ZFS fixed SIMD support I upgraded for the first time in over a year from kernel 4.19 and it was painless. Thank you.

xerxes commented on 2020-03-04 20:01

@sphere101: went from 5.4.15-arch1-1 to the latest today (5.5.7.arch1-1) and it built just fine.

sphere101 commented on 2020-03-04 13:46

Has anyone tested this latest zfs-dkms 0.8.3-2 with the 5.5.X kernel and latest gcc? If so, what is the process? Upgrade zfs-dkms and zfs-utils followed by a system update pacman -Syyu? Thank you.

vk77de commented on 2020-03-01 21:43

@mikeyyve: compiles. The filesystem is mountable