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-rw-r--r--sys/x86/iommu/intel_gas.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/x86/iommu/intel_gas.c b/sys/x86/iommu/intel_gas.c
index 51ad151..5ccf34b 100644
--- a/sys/x86/iommu/intel_gas.c
+++ b/sys/x86/iommu/intel_gas.c
@@ -366,7 +366,8 @@ dmar_gas_match_insert(struct dmar_gas_match_args *a,
next = RB_NEXT(dmar_gas_entries_tree, &a->ctx->rb_root, prev);
KASSERT(next->start >= a->entry->end &&
- next->start - a->entry->start >= a->size,
+ next->start - a->entry->start >= a->size &&
+ prev->end <= a->entry->end,
("dmar_gas_match_insert hole failed %p prev (%jx, %jx) "
"free_after %jx next (%jx, %jx) entry (%jx, %jx)", a->ctx,
(uintmax_t)prev->start, (uintmax_t)prev->end,
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