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Matthew Ahrens 3475724ea4 ztest: dmu_tx_assign() gets ENOSPC in spa_vdev_remove_thread() 
When running zloop, we occasionally see the following crash:

    dmu_tx_assign(tx, TXG_WAIT) == 0 (0x1c == 0)
    ASSERT at ../../module/zfs/vdev_removal.c:1507:spa_vdev_remove_thread()/sbin/ztest(+0x89c3)[0x55faf567b9c3]

The error value 0x1c is ENOSPC.

The transaction used by spa_vdev_remove_thread() should not be able to
fail due to being out of space. i.e. we should not call
dmu_tx_hold_space().  This will allow the removal thread to schedule its
work even when the pool is low on space.  The "slop space" will provide
enough free space to sync out the txg.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
External-issue: DLPX-37853
Closes #8889
2019-06-13 08:48:42 -07:00
.github Update CONTRIBUTING to point users to IRC as well as mailing list 2019-03-13 11:57:57 -07:00
cmd make zil max block size tunable 2019-06-10 11:48:42 -07:00
config Allow TRIM_UNUSED_KSYM when build as a builtin-module 2019-06-04 18:12:16 -07:00
contrib If $ZFS_BOOTFS contains guid, replace the guid portion with $pool 2019-06-06 13:04:35 -07:00
etc Fix zfs-mount-generator for datasets with spaces 2019-05-07 09:32:23 -07:00
include fat zap should prefetch when iterating 2019-06-12 13:13:09 -07:00
lib Refactor parent dataset handling in libzfs zfs_rename() 2019-05-28 15:31:38 -07:00
man fat zap should prefetch when iterating 2019-06-12 13:13:09 -07:00
module ztest: dmu_tx_assign() gets ENOSPC in spa_vdev_remove_thread() 2019-06-13 08:48:42 -07:00
rpm Add diffutils dependency for dkms build 2019-02-20 10:04:05 -08:00
scripts Fix %post and %postun generation in kmodtool 2019-06-10 09:06:58 -07:00
tests Improve ZTS block_device_wait debugging 2019-06-10 09:21:19 -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
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
configure.ac Add TRIM support 2019-03-29 09:13:20 -07:00
copy-builtin Allow copy-builtin to work with modified sources 2018-10-17 12:06:05 -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
Makefile.am zfs-tests: fix warnings when packaging some .shlib files 2019-05-24 14:12:14 -07:00
META Tag 0.8.0 2019-05-21 11:11:41 -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
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.