Date: Tue, 24 Oct 95 20:36 WET DST From: uhclem%nemesis@fw.ast.com (Frank Durda IV) To: bugs@freebsd.org Subject: re: kern/770: Floppy kernel won't boot with T485 or IDT L2 cache FDIV032 Message-ID: <m0t7ul9-000ItkC@nemesis.lonestar.org>
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kern/770: Floppy kernel won't boot with T485 or IDT L2 cache FDIV032 If you recall, this was a problem where if you had a 486-based system with a Intel 485 Cache module or a IDT L2 cache module, the boot floppy would not boot unless you physically removed the cache module first. (This is a transparent cache system, and there are no BIOS controls needed to manipulate or disable it.) This problem first appeared in 2.0.5-ALPHA and has been present in all SNAPs and releases since. Until now. For some reason, the 1022-SNAP floppy boots (circa Monday 1400CDT) fine on these systems (I tested three different models today). I also re-verified that 1005 and 2.0.5-R fail on the exact same systems. The only reason I went back to looking at this at all, was that I was installing 2.0.5-R on a system and forgot about the cache module. But instead of hanging like all the other systems did, this system (supposedly the same as two of the machines I was using) got a kernel panic and dumped what might be useful information. So I wanted to run 1022 on it and get the panic info to hopefully narrow down where the problem is. But 1022-Monday-1400CDT (Geez, put a .1 on it or something) boots successfully. So something changed between 1005 and 1022 in the boot.flp department that makes things all better. I hope somebody knows what the change was! :-) I suspect that nobody knows since I haven't seen a notification on this bug indicating that this issue was 'closed' or even 'analyzed'. Oh, I didn't have a 1005 floppy handy, but if a panic display for the 1005 or 2.0.5-R kernel would be useful to somebody, let me know (private mail please). Frank Durda IV <uhclem@nemesis.lonestar.org>|"The Knights who say "LETNi" or uhclem%nemesis@fw.ast.com (Sick Route) | demand... A SEGMENT REGISTER!!!" ...letni!rwsys!nemesis!uhclem |"A what?" ...decvax!fw.ast.com!nemesis!uhclem |"LETNi! LETNi! LETNi!" - 1983
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