Comment 2 for bug 1274995

StacktraceTop:
 __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fb699110ec8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
 malloc_printerr (action=<optimized out>, str=0x7fb69910cf28 "corrupted double-linked list", ptr=<optimized out>) at malloc.c:4924
 _int_free (av=0x7fb69934e760 <main_arena>, p=0x7fb69bf98780, have_lock=0) at malloc.c:3925
 virFree (ptrptr=ptrptr@entry=0x7fb694dd0be0) at /build/buildd/libvirt-1.2.1/./src/util/viralloc.c:580
 virObjectUnref (anyobj=<optimized out>) at /build/buildd/libvirt-1.2.1/./src/util/virobject.c:270