Subject: Re: port-mac68k/2568: kernel hangs if mouse moves during adb probe
To: None <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 06/25/1996 08:10:17
On Tue, 25 Jun 1996 07:41:42 -0400 (EDT)
Brad Salai <firstname.lastname@example.org> wrote:
> Kernel hangs during start up if mouse is moved.
> This is repeatable.
> Don't move the mouse.
Actually, this probably happens because it looks like interrupts are
enabled with the system is booting. Look at this snippet of locore.s:
/* final setup for C code */
jbsr _setmachdep | Set some machine-dep stuff
movw #PSL_LOWIPL,sr | lower SPL ; enable interrupts
the movw should probably go away, and n "spl0();" placed right after the
call to configure() in cpu_startup().
The same bug causes a panic on the hp300 if using a serial console with
software flow control enabled; the interrupt handlers haven't been
installed yet... Unfortunately, fixing it correctly on the hp300 is going
to require some changes tot he HIL driver. Hopefully, the mac68k port
doesn't rely on interrupts being there during autoconfiguration.
-- save the ancient forests - http://www.bayarea.net/~thorpej/forest/ --
Jason R. Thorpe email@example.com
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