+ candidate_info->busy_frag.ignore[candidate_frag] = 0;
+ candidate_info->busy_frag.equal_to[candidate_frag] = NULL;
+ //xbt_backtrace_no_malloc(candidate_info->busy_frag.bt[candidate_frag],XBT_BACKTRACE_SIZE);
+ //xbt_libunwind_backtrace(candidate_info->busy_frag.bt[candidate_frag],XBT_BACKTRACE_SIZE);