2007/7/4, Dan Yefimov <<a href="mailto:dan@ns15.lightwave.net.ru">dan@ns15.lightwave.net.ru</a>>: <div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">As for me, there seems to be no your fault. It looks like some module in the module stack just didn't release memory occupied by pam_message structure(s) on the error returned from your conversation function. -- Sincerely Your, Dan. </blockquote></div> Yeah, seems that. I've tried this code on Debian Etch and there is no leaks at all. Looks like I have an old version of PAM on my box. Thansk a lot.