[Wt-interest] deadlock in chained request

[Marco Kinski]

Hi List,

I have found some sort of race-condition/deadlock when chaining
http-requests using Wt::WResource.

The lock happens every once in a while (~ 100 requests).

I try to debug this for several days now but i dont get my mind bend
right around boost::asio.
It happens regardless of Wt::Http::Client (i tried wininet and winhttp
as alternatives)

Can somebody push me in the right direction?

code: http://pastebin.com/VcGC4KRT
log: http://pastebin.com/x2rdrBTN

Wt-Version: 3.3.6 (also 3.3.4)
Boost: 1.60
MSVC-2015 Update3