We are running into some interesting regressions with mono. We are
seeing many failures such as:

Mono v3.12.1 (we have considered moving up to 4.1 or 4.2 but the last
time we tested it didn't seem safe to move).

Native stacktrace:

/home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x609a4f]
/home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x5bdecf]
/home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x453b19]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x10340) [0x7fd9709b7340]
/home/ubuntu/EventStore-OSS-Ubuntu-v3.2.1/eventstored() [0x4e6145]
[0x40e21ceb]


[03041,21,13:43:11.379] Global Unhandled Exception occurred.
Object reference not set to an instance of an object
[ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException:
Object reference not set to an instance of an object
  at EventStore.Core.Bus.QueuedHandlerAutoReset.ReadFromQueue
(System.Object o) [0x00000] in <filename unknown>:0
  at System.Threading.Thread.StartInternal () [0x00000] in <filename unknown>:0

note that this isn't a real nre

We do not see these regressions in Linux ip-172-31-37-60
3.13.0-46-generic #77-Ubuntu SMP

We do see them in Linux ip-172-31-40-115 3.13.0-48-generic #80-Ubuntu SMP

Anyone have any ideas how to debug this further? These are not
deterministic issues.

Cheers,

Greg

-- 
Studying for the Turing test
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