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-rw-r--r--module/zfs/dsl_deadlist.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/module/zfs/dsl_deadlist.c b/module/zfs/dsl_deadlist.c
index 8da77ebd7..fa83a10a5 100644
--- a/module/zfs/dsl_deadlist.c
+++ b/module/zfs/dsl_deadlist.c
@@ -239,6 +239,14 @@ dsl_deadlist_insert(dsl_deadlist_t *dl, const blkptr_t *bp, dmu_tx_t *tx)
dle = avl_nearest(&dl->dl_tree, where, AVL_BEFORE);
else
dle = AVL_PREV(&dl->dl_tree, dle);
+
+ if (dle == NULL) {
+ zfs_panic_recover("blkptr at %p has invalid BLK_BIRTH %llu",
+ bp, (longlong_t)bp->blk_birth);
+ dle = avl_first(&dl->dl_tree);
+ }
+
+ ASSERT3P(dle, !=, NULL);
dle_enqueue(dl, dle, bp, tx);
}