From owner-freebsd-current@freebsd.org  Tue Jul  5 21:56:56 2016
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To: current@FreeBSD.org, smh@FreeBSD.org
From: Eric van Gyzen <vangyzen@FreeBSD.org>
Subject: Setting sysctl vfs.zfs.arc_max failed: 22
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Date: Tue, 5 Jul 2016 16:56:45 -0500
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Steven and -current:

I just updated to r302350 with a GENERIC kernel config.  I see this in
dmesg:

    VT(efifb): resolution 1024x768
    Setting sysctl vfs.zfs.arc_max failed: 22
    CPU: Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz (3491.98-MHz K8-class
    CPU)

The relevant parts of /boot/loader.conf are:

    zfs_load="YES"
    vfs.zfs.arc_max="6442450944"

Let me know what other information you need.

Cheers,

Eric