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D20633.id58628.diff
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D20633.id58628.diff

Index: vm_map.c
===================================================================
--- vm_map.c
+++ vm_map.c
@@ -2192,7 +2192,18 @@
* entry BEFORE this one, so that this entry has the specified
* starting address.
*/
- vm_map_simplify_entry(map, entry);
+ if ((entry->eflags & MAP_ENTRY_NOMERGE_MASK) == 0 &&
+ (vm_map_mergeable_neighbors(entry->prev, entry) ||
+ vm_map_mergeable_neighbors(entry, entry->next))) {
+ printf("%s: simplifying entry start %jx end %jx next_read %jx "
+ "max_free %jx eflags %jx object-type %d\n", __func__,
+ (uintmax_t)entry->start, (uintmax_t)entry->end,
+ (uintmax_t)entry->next_read, (uintmax_t)entry->max_free,
+ (uintmax_t)entry->eflags,
+ entry->object ? entry->object->type : -1);
+ vm_map_simplify_entry(map, entry);
+ }
+
vm_map_entry_charge_object(map, entry);
new_entry = vm_map_entry_create(map);
*new_entry = *entry;

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