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a783dd9684
This patch fixes a lock inversion issue in txg_sync_thread() where the code would attempt hold the spa config lock as a reader while holding tx->tx_sync_lock. This races with spa_vdev_remove() which attempts to hold the tx->tx_sync_lock to assign a new tx (via spa_history_log_internal()) while holding the spa config lock as a writer. Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com> Closes #8010 |
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