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Matthew Ahrens 77e64c6fff 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
2019-09-25 11:27:47 -07:00
.github Update CONTRIBUTING to point users to IRC as well as mailing list 2019-03-13 11:57:57 -07:00
cmd grammar: it is / plural agreement 2019-09-25 11:27:46 -07:00
config Remove vn_set_fs_pwd()/vn_set_pwd() (no need to be at / during insmod) 2019-09-25 11:27:46 -07:00
contrib If $ZFS_BOOTFS contains guid, replace the guid portion with $pool 2019-06-07 12:45:40 -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 2019-09-25 11:27:47 -07:00
lib Refactor parent dataset handling in libzfs zfs_rename() 2019-09-25 11:27:46 -07:00
man fat zap should prefetch when iterating 2019-09-25 11:27:47 -07:00
module ztest: dmu_tx_assign() gets ENOSPC in spa_vdev_remove_thread() 2019-09-25 11:27:47 -07:00
rpm Add diffutils dependency for dkms build 2019-02-20 10:04:05 -08:00
scripts Avoid updating zfs_gitrev.h when rev is unchanged 2019-09-25 11:27:47 -07:00
tests Improve ZTS block_device_wait debugging 2019-09-25 11:27:47 -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
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zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

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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.

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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.