slap_sl_malloc of X bytes failed, using ch_malloc

hi all -- i have a problem with a 2-multi-master, 1-replica setup. my master servers' directories sync up and stay replicated without too many issues; however, when i start up the replica i get this message on the master that i'm sync'ing the replica from: slap_sl_malloc of 138718824 bytes failed, using ch_malloc

and, of course, the slapd dies. this is 100% repeatable.

i noticed that this has been an issue in the past (it cropped up on the mailing list around december 2007) and was curious if it's a known issue or a misconfiguration or what.

i'm running 2.4.8 on linux 2.6.18.8-32bit-5-xenU.

thanks for any insight.

k.