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When we encounter an I/O error on a piece of metadata while deleting a file system or zvol, we don't update the bptree_entry_phys_t's bookmark. This would lead to double free of bp's which will lead to space map corruption. Instead of tolerating and allowing the corruption, panic immediately. See Illumos #4390 for more details. 4391 panic system rather than corrupting pool if we hit bug 4390 Illumos/illumos-gate@8b36997aa2 MFC after: 2 weeks |
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contrib/opensolaris | ||
dev |