On Sat, Nov 24, 2018 at 04:47:19PM +0900, Junio C Hamano wrote: > Junio C Hamano <gitster@xxxxxxxxx> writes: > a better workaround might be to write into unique output filenames > (act1.out, act2.out, etc.); that way, you do not have to worry about > the output file for the next request getting clobbered by a stale > process handling the previous request. Yes I agree > But at the same time, > wouldn't this suggest that the test or the previous request may see > an incomplete output, Yes it may miss the child's message. But in this case of failed http-backend process, there should be already one "fatal:" message in the act.err from the parent, and missing another one does not change the outcome.