On Tue, Nov 05, 2019 at 01:33:00PM +1100, Finn Thain wrote: > All the PB 190 machines that I've come across have a late revision 68LC040 > CPU that is free of errata. Please see, > http://www.mac.linux-m68k.org/docs/faq.php#sec-4.5 > > The Performa 636 is highly likely to be affected, but you can run Linux > from initramfs to avoid page faults in code sections. That would allow you > to test the IDE driver. > > Or you can just replace the CPU with a full 68040, since it is socketed. I'll try the PB190 first anyway. It should be easier due to not needing to setup a monitor. I'm not sure if I ever booted Linux on either of them, since I acquired both about the time I started getting too busy to spend time on such things. I just found the Performa, and it's actually a Performa 630CD but I don't see any obvious difference based on the specs. I just took a look at the macide driver, and it appears to do basically nothing other than pass a list of addresses into the core ide code. It's one of the smallest drivers I've ever seen. > But watch out for leaking capacitors and batteries... I should pull out every machine in my collection and look for those sorts of issues. None of them have been checked in at least 5 or 6 years. Brad Boyer flar@xxxxxxxxxxxxx
