--On Wednesday, May 22, 2013 9:39 PM +0000 dhawes@vt.edu wrote:

On Wed, Nov 21, 2012 at 1:16 PM, hyc@symas.com wrote:

...

More information is needed than this. Your stack traces aren't even complete. What was the workload leading up to this? Give us a sample configuration that reproduces the assert.

I came across what looks like this issue today. Let's see if I can provide more info.

I noticed one of my test machines (2.4.35) had crashed overnight. Unfortunately, I had neglected to set ulimit -c, so I had no core dump to work with. Upon restarting, however, I got the following:

slapd: ./../../../libraries/liblmdb/mdb.c:4025: mdb_page_search_root: Assertion `(((mp)->mp_pb.pb.pb_lower - ((unsigned) __builtin_offsetof (MDB_page, mp_ptrs))) >> 1) > 1' failed.

A backtrace shows that this occurred during an accesslog_purge(). The backtrace is at the end of this email.

This is ITS#7536. There were more fixes for it in RE24 after 2.4.35 was released.

--Quanah

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Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration