Today I noticed Preferences #serverMode. I've never used it, is this still useful?

I decided to try setting it in one of my servers to see if it had any effect on its performance.

Preferences serverMode "false" Preferences serverMode: true "DNU" Preferences setPreference: #serverMode toValue: true. "do it" Preferences serverMode "false. Huh?" Preferences setPreference: #serverMode toValue: true. "debug it"

In the debugger, select Into + Into + Through.

It works fine in the 4.5 image, but trunk locks up tightly.

It may be due to called code entering a critical: section but I'm not sure. Based on what Marcel described re: extending "Processor activeProcess" to return the effective process, is definitely a suspect..

This is a pretty bad regression from 4.5, because Mutexes are very common and so the image should could easily lock just by normal debugging activity..