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Former Employee

Nov 19, 2019

Workaround for non-responsive Windows 10 Enterprise multi-session hosts

Some Windows Virtual Desktop customers are recently affected by non-responsive Windows 10 Enterprise multi-session hosts. We have identified two issues, one related to a deadlock within FSLogix and o...

Brass Contributor

Nov 19, 2019

Hi Pieter, are you able to elaborate on those scenarios? We did have a lot of trouble with our previous host pool vms becoming unresponsive and need to determine if we have to disable this task on our current vm's.

PieterWigleven
Former Employee
Nov 20, 2019
sbuntun The BgTaskRegistrationMaintenanceTask scheduled task runs every 7 days and cleans up cached data that a service called BiSrv has for each user profile that was deleted.

If you have "enough" user profiles deleted within those 7 days, the system might run out of worker threads resulting in the WVD agent to be impacted.

Anything that deletes user profiles after user logoff will accelerate this, including FSLogix which by default deletes the profile during logoff. I don't have data yet to provide more details on how many profiles would qualify as "enough".

Hope this information helps you understand which scenarios this issue would surface in.
- cangdao
  Copper Contributor
  Dec 01, 2019
  This happened to my hosts. I upgraded FSLogix from FSLogix_Apps_2.9.7205.27375 to FSLogix_Apps_2.9.7237.48865 and it seemed to have fixed it. I am going to implement the next fix per this post. Thank goodness I found this discussion. My hosts are production and got real users.
  - Kompressor_82
    Copper Contributor
    Dec 02, 2019
    cangdao
    How many profiles?
    What type of behaviors or early issues did you start to notice and did it quickly get worse?
    Also, how long into your build did you start to notice these issues?

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