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LLVM's static analyzer reported that we could pass an uninitialized pool_guid to spa_by_guid() in vdev_inuse(). Upon review, it is correct. An attempt to repurpose a spare or L2ARC drive from an exported pool will cause the pool_guid passed to spa_by_guid() to be unintialized information from the stack. This will cause non-deterministic behavior. Since there is no reason why we cannot repurpose such disks, we modify vdev_inuse() to avoid calling spa_by_guid() when they are detected. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Issue #2330 |
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