<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Oct 18, 2012, at 11:21 AM, Jeffrey Van Voorst wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Ok, let me look into this a bit tomorrow. The issue is free() which gets an invalid address from a shared_ptr for root_data in iotbx_pdb when it is time for the whole pdb hierarchy to disappear. My main issue is I am not sure how to go about debugging shared_ptrs nor what architecture dependent flags or other voodoo (if any) is specified by -pthread.<br></span></blockquote></div><br><div>Could you try adding -DBOOST_DISABLE_THREADS to compile your C++ program?</div><div><br></div><div>Luc</div><div><br></div></body></html>