Subject: Re: some diffs to 1.0-current / 1.0 (probably as well)
To: Niklas Hallqvist <email@example.com>
From: None <firstname.lastname@example.org>
Date: 01/03/1995 18:09:28
> Zeus SCSI interface, and this is what breaks. First I thought some
> interrupts got missed so I rewrote _fake_lev6intr to be a loop like
> moveml d0/d2/a0,sp@- | save scratch regs
Did you write this from memory, or is this the actual code you were
compiling? This originally was
which symbolically would be
nothing going on with d2... Take care, you're later branching into
the other interrupt-handler, which expects to find d0/d1/a0/a1 on
the stack to restore... Store d2 after deciding that it's indeed
a fake level 6.
> Yeah, I changed Lnotdma to Lplainintr, but that shouldn't matter. I
> also removed the intreq clearing from the devices as I do it in
> Lskipciab instead. I have removed the INTF_AUD? intena resets in
> cc.c. However, this doesn't help. My zeus refuses to mount the root
> with a ENXIO, but all the config stuff went OK, so it has to be the
> interrupt system that's messed up. Michael, have you tried Markus'
> changes? Markus, anyone, ideas?
Unless you did some other changes you didn't mention, check your
register saving ...
> BTW, the above code makes statclock (called from hardclock) panic at
> times (when siop_debug is enabled), so I must be doing something
Looks like siop is reenabling AUD3 too early, so that the clock can
interrupt a siop-function that in theory should run at the same spl...
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