Map Large App Error After Dot Net 21.12 agent deployment

Products

• CA Application Performance Management SaaS

Issue/Introduction

Ml-api service is not starting after APM agent deployment.

As mentioned in the previous case, following needs to be tested:

Can we get logs with introscope.nativeprofiler.logAllMethodsNoticed=true? Ensure the environment variable APMENV_GET_NATIVE_ENV_VARS=0

 

 

Environment

Release : SAAS

Resolution

A new build fixed the profiler from an access violation during unregistering itself.

We found that in this case, due to some cache coherency and code optimization , the profiling callback pointer may not be initialized/visible to other threads when the code call is sequenced from managed to unmanaged. We have protected the call sequence and ensured that the call is transferred safely.

There is no issue seen so far. This case should be closed now.