Hung WU? Yafu-16T 134.05
Running via boinc 7.8.3 (x64)
Windows 10, Ryzen 1700x, 64GB RAM.

After 17:15:31 and the last almost 6 hours of that being at 100% (that's when I noticed it), the WU just kept going. I finally suspended it so I could get some other WU's done from a few other projects.

Any idea what to do here?

Here is a quick screen cap:

https://www.dropbox.com/s/1kos813xw60cbf2/2017-10-31%2013_39_33-Properties%20of%20task%20yafu_ali_867690_L139_C138_1509114607_39_1.png?dl=0

It is quite possible that it still runs.

Please check the slot folder if there is still progress and check in task manager if yafu, ecm or gnfs consumes cpu.