Hello, Torsten. 

On Tue, Aug 22, 2017 at 07:10:59AM +0200, Torsten Bögershausen wrote:
> Hej,
> I found 2 threads about hanging t5551, one in 2016, and one question
> from Junio somewhen in 2017.
> I have it reproducable here:
> - Debian 8, 64 bit
> - SSD
> - Half-modern processor ;-)

I don't think the SSD/regular disk have anything to do with it. 

- Are you running tests concurrently? (e.g., with -j x)
- What happens if you run the test individually (i.e., cd t and
  ./t5551...)
- You probably want to see the version of apache this is running/etc.
- What happens if you kill the apache processes? 

I can't reproduce on my side, but let me see if I can dig a little into
it.

Cheers!
-Santiago.