debug_printf(" .size = 0x%x\n", buf->base.base.size);
debug_backtrace_dump(buf->create_backtrace, PB_DEBUG_CREATE_BACKTRACE);
debug_printf(" .size = 0x%x\n", buf->base.base.size);
debug_backtrace_dump(buf->create_backtrace, PB_DEBUG_CREATE_BACKTRACE);