Reliable Java Threading w/ Linux 2.4?

mikej asks: "I'm involved in an ongoing saga that attempts to get an application running a large number of Java threads (30-60 sustained, 300+ peak) reliably. My last large hurtle was the context switching delay on the 2.2 kernel, which the 2.4 series has _nicely_ fixed. Now I'm running into problems keeping the JVM alive under threadload. The Sun and IBM java mailing lists and newsgroups are full of complaints concerning threading problems on Linux, and I'm faced with the choice of moving the system to Solaris (something that I very much do not want to do). Has anyone seen a system like this in action, and is there an especially successful combination of SDK/glibc/kernel?"