------- Comment #13 from hubicka at ucw dot cz 2008-09-14 09:24 ------- Subject: Re: 7 Internal Compiler Errors when compiling OpenFOAM-1.5
Looking at the log, it seems to be another leak where multiple declarations points to single struct function. This is of course quite evil bug with various side effects (surprisingly often the sharing just works, but it is always memory leak and tends to break various targets), we had instance of it already in IPCP versioning and template instantiation. THis is why I added explicit ggc_free in cgraph code now. I am just leaving for US trip, so I am not sure how soon I will be able to look, but debugging is quite easy. You figure out the shared decls (i.e. one is in the backtrace where garbagecollector crashes, other is the one we call ggc_free on the struct function when removing it). Then breakpoint on the end of ggc_page with condition of result being either of those addresses to see who builds them and the second one is the wrong copy. Honza -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37057
