[Bug 231725] [ZFS] cannot disable vfs.zfs.compressed_arc_enabled on 10.4-RELEASE

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Sep 25 19:55:27 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231725

            Bug ID: 231725
           Summary: [ZFS] cannot disable vfs.zfs.compressed_arc_enabled on
                    10.4-RELEASE
           Product: Base System
           Version: 10.4-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: misc
          Assignee: bugs at FreeBSD.org
          Reporter: carlos.poita at gmail.com

Dear FreeBSD Bugzilla community,

I'm having some kernel panics on one production server after updating FreeBSD
from 10.3-RELEASE to 10.4-RELEASE.

I noticed that vfs.zfs.compressed_arc_enabled appeared in 10.4-RELEASE, and
this feature make FreeBSD unstable in our VMware ESXi 6.0 environment. We had
some issues with 11.x in the past, and as a workaround, we switched back to
10.3-RELEASE.

More details in this thread I opened in the community forum:
https://forums.freebsd.org/threads/kernel-panic-after-upgrading-to-11-1.62499/

I tried to set: vfs.zfs.compressed_arc_enabled="0" in /boot/loader.conf but the
parameter keeps "1" after reboot.

I tried the same on a fresh 11.2-RELEASE server and the configuration was
successful.

Can we have a look at this?

Thanks!

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