This customer has been testing it.. [increasing StackShadowPages]
The value of 4 worked OK but when they tried 5, the JVM crashed with a hs_err log.
The error was
# Internal Error (os_solaris.cpp:4840), pid=6555, tid=2
# Error: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages+StackShadowPages+BytesPerWord +1) * page_size),"need to increase Solaris::min_stack_allowed on this platform")
They had -Xss set to 1024k.
ulimit in the shell was 8192.
What is the min_stack_allowed parameter?