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-rw-r--r--src/kernel/core/region.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/kernel/core/region.c b/src/kernel/core/region.c
index c4c34d1..886c9fc 100644
--- a/src/kernel/core/region.c
+++ b/src/kernel/core/region.c
@@ -165,9 +165,12 @@ descriptor_t *find_used_region(void* addr) {
void add_used_region(descriptor_t *d) {
descriptor_t *i = first_used_region;
+ ASSERT(i != 0);
ASSERT(i->used.i.addr < d->used.i.addr); // first region by address is never free
while (i != 0) {
+ ASSERT(i != d);
+ ASSERT(i->used.i.addr != d->used.i.addr);
ASSERT(i->used.i.addr < d->used.i.addr);
if (i->used.next_by_addr == 0 || i->used.next_by_addr->used.i.addr > d->used.i.addr) {
d->used.next_by_addr = i->used.next_by_addr;