OpenZFS on Linux and FreeBSD

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Paul Dagnelie 475aa97cab Prevent metaslab_sync panic due to spa_final_dirty_txg If a pool enables the SPACEMAP_HISTOGRAM feature shortly before being exported, we can enter a situation that causes a kernel panic. Any metaslabs that are loaded during the final dirty txg and haven't already been condensed will cause metaslab_sync to proceed after the final dirty txg so that the condense can be performed, which there are assertions to prevent. Because of the nature of this issue, there are a number of ways we can enter this state. Rather than try to prevent each of them one by one, potentially missing some edge cases, we instead cut it off at the point of intersection; by preventing metaslab_sync from proceeding if it would only do so to perform a condense and we're past the final dirty txg, we preserve the utility of the existing asserts while preventing this particular issue. Reviewed-by: Matt Ahrens <matt@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com> Closes #9185 Closes #9186 Closes #9231 Closes #9253		2019-08-30 09:28:31 -07:00
.github	Update CONTRIBUTING to point users to IRC as well as mailing list	2019-03-13 11:57:57 -07:00
cmd	Fix automake program name transformations	2019-08-20 17:46:40 -04:00
config	Minor style cleanup	2019-07-16 17:22:31 -07:00
contrib	Fix Plymouth passphrase prompt in initramfs script	2019-08-27 13:44:02 -07:00
etc	etc/init.d/zfs-functions.in: remove arch warning	2019-08-29 13:14:48 -07:00
include	Keep more metaslabs loaded	2019-08-29 10:20:36 -07:00
lib	zfs_handle used after being closed/freed in change_one callback	2019-08-28 15:02:58 -07:00
man	Keep more metaslabs loaded	2019-08-29 10:20:36 -07:00
module	Prevent metaslab_sync panic due to spa_final_dirty_txg	2019-08-30 09:28:31 -07:00
rpm	initramfs: fixes for (debian) initramfs	2019-08-16 09:02:32 -06:00
scripts	Split argument list, satisfy shellcheck SC2086	2019-08-25 18:30:39 -07:00
tests	Prevent metaslab_sync panic due to spa_final_dirty_txg	2019-08-30 09:28:31 -07:00
udev	Restore :: in Makefile.am	2019-08-26 11:48:31 -07:00
.gitignore	Linux 5.3 compat: Makefile subdir-m no longer supported	2019-08-19 15:22:52 -07:00
.gitmodules	Add zimport.sh compatibility test script	2014-02-21 12:10:31 -08:00
.travis.yml	Add .travis.yml	2017-11-13 09:18:18 -08:00
AUTHORS	Update build system and packaging	2018-05-29 16:00:33 -07:00
CODE_OF_CONDUCT.md	Add CODE_OF_CONDUCT.md	2019-04-30 10:58:45 -07:00
COPYRIGHT	Update build system and packaging	2018-05-29 16:00:33 -07:00
LICENSE	Update build system and packaging	2018-05-29 16:00:33 -07:00
META	Tag 0.8.0	2019-05-21 11:11:41 -07:00
Makefile.am	Restore :: in Makefile.am	2019-08-26 11:48:31 -07:00
NEWS	Add NEWS file	2018-09-18 12:03:47 -07:00
NOTICE	Update build system and packaging	2018-05-29 16:00:33 -07:00
README.md	Explicitly state supported Linux versions	2018-05-30 20:11:19 -07:00
TEST	Update build system and packaging	2018-05-29 16:00:33 -07:00
autogen.sh	Cause autogen.sh to fail if autoreconf fails	2018-07-06 09:27:37 -07:00
configure.ac	Add channel program for property based snapshots	2019-07-30 16:02:19 -07:00
copy-builtin	Allow copy-builtin to work with modified sources	2018-10-17 12:06:05 -07:00
zfs.release.in	Move zfs.release generation to configure step	2012-07-12 12:22:51 -07:00

README.md

ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

Official Resources

Installation

Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

Contribute & Develop

We have a separate document with contribution guidelines.

Release

ZFS on Linux 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 kernel versions.