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| author | asomers <asomers@FreeBSD.org> | 2016-01-29 17:08:26 +0000 |
|---|---|---|
| committer | asomers <asomers@FreeBSD.org> | 2016-01-29 17:08:26 +0000 |
| commit | 94b986ee45d924260f255854d8022435a559b674 (patch) | |
| tree | 12a6f4e164f2fa781297a7b8f06198ae869750a2 /UPDATING | |
| parent | a6dbee3943e27268eda39568d19621ea61955211 (diff) | |
| download | FreeBSD-src-94b986ee45d924260f255854d8022435a559b674.zip FreeBSD-src-94b986ee45d924260f255854d8022435a559b674.tar.gz | |
Add a sysctl to allow ZFS pools backed by zvols
Change 294329 removed the ability to build ZFS pools that are backed by
zvols, because having that ability (even if it's not used) leads to
deadlocks. By popular demand, I'm adding an off-by-default sysctl to
reenable that ability.
Reviewed by: lidl, delphij
MFC after: Never
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D4998
Diffstat (limited to 'UPDATING')
| -rw-r--r-- | UPDATING | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -31,6 +31,13 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: disable the most expensive debugging functionality run "ln -s 'abort:false,junk:false' /etc/malloc.conf".) +20160129: + Building ZFS pools on top of zvols is prohibited by default. That + feature has never worked safely; it's always been prone to deadlocks. + Using a zvol as the backing store for a VM guest's virtual disk will + still work, even if the guest is using ZFS. Legacy behavior can be + restored by setting vfs.zfs.vol.recursive=1. + 20160119: The NONE and HPN patches has been removed from OpenSSH. They are still available in the security/openssh-portable port. |
