TRACE_BOUNCE
log_trace(TRACE_BOUNCE, "bounce: %p: >>> %s", s, p);
log_trace(TRACE_BOUNCE, "bounce: %p: >>> [... %zu bytes ...]",
log_trace(TRACE_BOUNCE, "bounce: %p: >>> [... %zu bytes ...]",
log_trace(TRACE_BOUNCE, "bounce: %p: <<< %s", s, line);
return TRACE_BOUNCE;
tracing |= TRACE_BOUNCE;