[Bug 229614] ZFS lockup in zil_commit_impl

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229614

--- Comment #4 from Michael Gmelin <grembo at FreeBSD.org> ---
It's also noteworthy that the zpool was a bit behind before the hang happened
(just upgraded, no reboot yet):

# zpool upgrade tank
This system supports ZFS pool feature flags.

Enabled the following features on 'tank':
  sha512
  skein
  device_removal
  obsolete_counts
  zpool_checkpoint

And that it's using ashift=9:

# zdb
tank:
    version: 5000
    name: 'tank'
    state: 0
    txg: 4612743
    pool_guid: 819174864231115292
    hostid: 680786551
    hostname: ''
    com.delphix:has_per_vdev_zaps
    vdev_children: 1
    vdev_tree:
        type: 'root'
        id: 0
        guid: 819174864231115292
        children[0]:
            type: 'disk'
            id: 0
            guid: 1449467969842353068
            path: '/dev/ada0p3'
            phys_path: '/dev/ada0p3'
            whole_disk: 1
            metaslab_array: 34
            metaslab_shift: 26
            ashift: 9
            asize: 159982288896
            is_log: 0
            create_txg: 4
            com.delphix:vdev_zap_leaf: 4143
            com.delphix:vdev_zap_top: 4144
    features_for_read:
        com.delphix:hole_birth
        com.delphix:embedded_data

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