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Serapheim Dimitropoulos 1c44a5c97f hdr_recl calls zthr_wakeup() on destroyed zthr 
There exists a race condition were hdr_recl() calls
zthr_wakeup() on a destroyed zthr. The timeline is the
following:

[1] hdr_recl() runs first and goes intro zthr_wakeup()
    because arc_initialized is set.
[2] arc_fini() is called by another thread, zeroes
    that flag, destroying the zthr, and goes into
    buf_init().
[3] hdr_recl() tries to enter the destroyed mutex
    and we blow up.

This patch ensures that the ARC's zthrs are not offloaded
any new work once arc_initialized is set and then destroys
them after all of the ARC state has been deleted.

Reviewed by: Matt Ahrens <matt@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #9047
 		2019-07-18 12:55:29 -07:00
.github Update CONTRIBUTING to point users to IRC as well as mailing list 2019-03-13 11:57:57 -07:00
cmd zdb: don't print log spacemap stats in pools without the feature 2019-07-18 12:54:03 -07:00
config Minor style cleanup 2019-07-16 17:22:31 -07:00
contrib Remove code for zfs remap 2019-06-24 16:44:01 -07:00
etc New service that waits on zvol links to be created 2019-07-17 15:33:05 -07:00
include Retire unused spl_{mutex,rwlock}_{init_fini} 2019-07-17 15:13:53 -07:00
lib Log Spacemap Project 2019-07-16 10:11:49 -07:00
man New service that waits on zvol links to be created 2019-07-17 15:33:05 -07:00
module hdr_recl calls zthr_wakeup() on destroyed zthr 2019-07-18 12:55:29 -07:00
rpm New service that waits on zvol links to be created 2019-07-17 15:33:05 -07:00
scripts Fix out-of-tree build failures 2019-06-24 09:32:47 -07:00
tests Add zfs create dryrun 2019-07-16 11:19:24 -07:00
udev Add enclosure_symlinks option to vdev_id 2018-12-14 17:27:49 -08:00
.gitignore git ignore python 3.7 virtual environment directories 2019-03-25 15:05:26 -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 Fix out-of-tree build failures 2019-06-24 09:32:47 -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 New service that waits on zvol links to be created 2019-07-17 15:33:05 -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

img

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.

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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.