Hi, I've been trying to install 19990604-CURRENT on a couple of SC450NX boxes. It works fine with 2 cpu's, but an SMP kernel with 4 cpu's falls over very quickly (I think while it's setting up the APIC stuff, or very shortly after - the messages about APIC bus ids appear on the screen very briefly, then the machine reboots itself).
Does anyone know a) when was the last time it worked on 4 cpu's b) what's changed recently which might relate to this. Also in trying to figure this out I looked at the DRAM probing code in /usr/src/sys/i386/i386/machdep.c:getmemsize(), and it looks as though it's not safe for >2GB (e.g. comparisons of byte addresses against signed "int end"). It would also be good if this probing code was carefule not to ventrue past 4GB-64MB (PCI device space) - then a generic kernel could work on a 4GB machine without any tweaking, which would simplify installation - I get nervous shuffling DIMMs in and out of the machine ... Thanks Richard Cownie (t...@ma.ikos.com) To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-current" in the body of the message
