An issue was observed on 9.2.1a relating to policy push from the SCC to Steelheads running this version. An updated version should be out shortly.
If you're getting Apache crashes, I would recommend opening a ticket with Riverbed Support. They will be able to help you out on this matter.
Just simple things like opening 'current connections' gave message: 'Error building table' before crashing the GUI.
Optimization service still running fine and without rebooting the appliance the webservice restores itself after 20-30 min.
During that time no http/https connections allowed to any interface and SSH gives access to simple CLI(Management backend unavailable. Continuing with reduced functionality).
Anyway, instead of fighting this we just downgraded 9.2.1a to 9.2.1 and all appliances resumes operation without problems.
A bit annoying that there is hardly any info regarding this on the Riverbed Support site.