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OpenZFS on Linux and FreeBSD
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Andy Fiddaman 39372fa25b
Dangling reference from dmu_objset_upgrade 
After porting the fix for https://github.com/openzfs/zfs/issues/5295
over to illumos, we started hitting an assertion failure when running
the testsuite:

	assertion failed: rc->rc_count == number, file: .../refcount.c

and the unexpected hold has this stack:

	dsl_dataset_long_hold+0x59 dmu_objset_upgrade+0x73
dmu_objset_id_quota_upgrade+0x15 dmu_objset_own+0x14f

The simplest reproducer for this in illumos is

    zpool create -f -O version=1 testpool c3t0d0; zpool destroy testpool

which is run as part of the zpool_create_tempname test, but I can't get
this to trigger on FreeBSD. This appears to be because of the call to
txg_wait_synced() in dmu_objset_upgrade_stop() (which was missing in
illumos), slows down dmu_objset_disown() enough to avoid the condition.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andy Fiddaman <andy@omnios.org>
Closes #11368
 		2020-12-21 10:13:23 -08:00
.github CI: add zloop workflow 2020-12-10 20:46:15 +03:00
cmd ZED/zfs-list-cacher.sh: don't exit on ignored event type 2020-12-18 09:34:10 -08:00
config Linux 4.18.0-257.el8 compat: blk_alloc_queue() 2020-12-21 10:11:56 -08:00
contrib dracut: use /bin/sh instead of bash as the intepreter 2020-11-28 11:02:08 -08:00
etc Verify zfs module loaded before starting services 2020-11-28 11:11:18 -08:00
include Linux 4.18.0-257.el8 compat: blk_alloc_queue() 2020-12-21 10:11:56 -08:00
lib Linux 5.10 compat: use iov_iter in uio structure 2020-12-18 08:48:26 -08:00
man Only examine best metaslabs on each vdev 2020-12-16 14:40:05 -08:00
module Dangling reference from dmu_objset_upgrade 2020-12-21 10:13:23 -08:00
rpm zpool_influxdb: move to libexec dir 2020-11-28 11:15:57 -08:00
scripts DKMS: Disable weak modules 2020-12-15 09:22:30 -08:00
tests ZTS: Simplify zpool_initialize_verify_initialized 2020-12-18 08:42:59 -08:00
udev Centralize variable substitution 2020-07-14 17:33:44 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
META Increase Supported Linux Kernel to 5.9 2020-10-13 09:51:13 -07:00
Makefile.am dracut: use /bin/sh instead of bash as the intepreter 2020-11-28 11:02:08 -08:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md docs: update README's installation link 2020-10-08 09:33:53 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac Distributed Spare (dRAID) Feature 2020-11-13 13:51:51 -08:00
copy-builtin Replace ZFS on Linux references with OpenZFS 2020-10-08 20:10:13 -07:00
cppcheck-suppressions.txt Import ZStandard v1.4.5 2020-08-20 10:30:06 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

Release

OpenZFS is released under a CDDL license. For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197

Supported Kernels

  • The META file contains the officially recognized supported Linux kernel versions.
  • Supported FreeBSD versions are 12-STABLE and 13-CURRENT.