3084176 - Work processes stuck in <VMC OP TH_VMC_DELETE_SESSION>

Symptom

At SM50, you can see work processes stuck in program "<VMC OP TH_VMC_DELETE_SESSION>".

Just before the situation started, the Dispatcher trace logs that a work process has crashed.

The trace file for the corresponding work process (that has crashed) has the following C-Stack:

jvm!CVMsgcGetSharedGCSnapshot [shared_gc.c (1150)]
jvm!CVMspGetSharedGCSnapshot [shared_pool.c (1199)]
disp+work!ThJGetSGCInfo [thxxjava.c (911)]
disp+work!ThJVmInvolvedInSgc2 [thxxjava.c (10265)]
disp+work!ThJCloneVm [thxxjava.c (9381)]
disp+work!ThJCreateContext [thxxjava.c (8857)]
disp+work!ThJAttachVm2Context [thxxjava.c (7849)]
disp+work!ThVmcAttachServer [thxxvmc.c (4435)]
disp+work!ThVmcICallServer [thxxvmc.c (3808)]
disp+work!ThVmcCallServer [thxxvmc.c (7520)]
(...)

Environment

SAP NetWeaver ABAP based product with VMC active

Product

SAP NetWeaver all versions

Keywords

KBA , BC-VMC , Virtual Machine Container , BC-CST , Client/Server Technology , Problem

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