Object reference not set to an instance of an object

[Critical_Impact]

Hi, I am having sonarr crash at random times with this error. Seemed to be working fine in previous versions until I updated.

System.NullReferenceException: Object reference not set to an instance of an object
at System.Threading.Timer+Scheduler.SchedulerThread () [0x00000] in :0
at System.Threading.Thread.StartInternal () [0x00000] in :0

nzbdrone version and branch: 2.0.0.3154(master I believe?)
operating system: ubuntu 14.04.1 LTS
mono version: 3.10.0 (tarball Wed Nov 5 12:50:04 UTC 2014)
pastebin: http://pastebin.com/FPMsvx62

I am not doing anything specific. Also sometimes in the tasks scheduler, it’ll get stuck and never execute the scheduled tasks.

[Taloth]

See:

Native mono crashes [kernel fix released]

"For every action there is an equal and opposite reaction." We've had quite a few reports about odd crashes, most of them known to be so called Native crashes, where mono cries out in terror and dies without telling us why. Initially this thread was to collect important information about the systems on which the crashes occurred. Since this thread was posted I've literally spent more than a hundred hours investigating this issue. Debugging Sonarr and mono countless times, compiled mono hal…