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openldap2/0012-openldap-re24-its8336.patch

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From fd7bfbc0df0ade534bea84914d385ecf2a73f678 Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@openldap.org>
Date: Tue, 8 Dec 2015 18:17:24 +0000
Subject: ITS#8336 fix page_search_root assert on FreeDB
Let "illegal" branch pages thru on the FreeDB - the condition
is only temporary and will be fixed by the time rebalance finishes.
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index fa0c9e5..a624cba 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -5279,7 +5279,11 @@ mdb_page_search_root(MDB_cursor *mc, MDB_val *key, int flags)
indx_t i;
DPRINTF(("branch page %"Z"u has %u keys", mp->mp_pgno, NUMKEYS(mp)));
- mdb_cassert(mc, NUMKEYS(mp) > 1);
+ /* Don't assert on branch pages in the FreeDB. We can get here
+ * while in the process of rebalancing a FreeDB branch page; we must
+ * let that proceed. ITS#8336
+ */
+ mdb_cassert(mc, !mc->mc_dbi || NUMKEYS(mp) > 1);
DPRINTF(("found index 0 to page %"Z"u", NODEPGNO(NODEPTR(mp, 0))));
if (flags & (MDB_PS_FIRST|MDB_PS_LAST)) {