Next ZFSv28 patchset ready for testing.

Olivier Smedts olivier at
Tue Dec 14 13:58:01 UTC 2010

2010/12/13 Pawel Jakub Dawidek <pjd at>:
> Hi.
> The new patchset is ready for testing:
> When applying the patch be sure to use correct options for patch(1)!:
>        # cd /usr/src
>        # fetch
>        # bzip2 -d zfs_20101212.patch.bz2
>        # patch -E -p0 < zfs_20101212.patch
> The patch is against FreeBSD HEAD as of 2010-12-12.

Is it Christmas already ? Thanks ! :)

> Some of the changes since the last patchset (zfs_20100831.patch):
> - Boot support for ZFS v28 (only RAIDZ3 is not yet supported).
> - Various fixes for the existing ZFS boot code.
> - Support for sendfile(2) (by avg@).
> - Userland<->kernel compatibility with v13-v15 (by mm@).

I tried it on my 8-STABLE box (root zpool v15 on 2 mirrored vdevs with
an usb l2 cache). I checked-out CURRENT sources with svn, applied the
patch (it applied cleanly). Did not modify kernel config (no
debugging) or make.conf. buildworld, buildkernel, installkernel
INSTKERNNAME=CURRENT and rebooted in single-user mode with
kernel="CURRENT". No problem so far, the kernel displayed the good
freebsd/zpool/zfs version numbers, and it booted correctly in
single-user mode. But I had problems with userland v15 :
# mount
tank/freebsd on / (zfs, local, noatime, read-only)
devfs on /dev (devfs, local)
# zpool status
Assertion failed: (nvlist_lookup_uint64_array(nvroot,
ZPOOL_CONFIG_STATS, (uint64_t **)&vs, &vsc) == 0), file
line 181.
pid 20 (zpool), uid 0: exited on signal 6
Abort trap

Am I missing something ?

> - ACL fixes (by trasz@).
> - Various bug fixes.
> Please test, test, test. Chances are this is the last patchset before
> v28 going to HEAD (finally). Especially test new changes, like boot
> support and sendfile(2) support. Also be sure to verify if you can
> import for existing ZFS pools (v13-v15) when running v28 or boot from
> your existing pools.
> Enjoy!
> PS. Martin (mm@) will be providing patch against 8-STABLE soon.
> --
> Pawel Jakub Dawidek             
> pjd at                 
> FreeBSD committer                         Am I Evil? Yes, I Am!


Olivier Smedts                                                 _
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