Subject: Re: problems with pcmcia hard drive
To: None <netbsd-users@netbsd.org>
From: Henry Nelson <henry@irm.nara.kindai.ac.jp>
List: netbsd-users
Date: 04/30/2001 12:39:58
> >> "Stray interrupt on IRQ 7" (or words to that effect), followed by "wd2 
> >> at pcmcia1 function 0".  It never comes back after that.  Hitting 
> >> cntl+alt+esc makes it say "cardslot1 at cpu_Debugger+0x4 leave".
> >
> >Can you try it using pcic (i.e. plain PCMCIA), rather than pccbb (i.e.
> >CardBus)?  I believe this is instantiation of an IRQ stalling behavior
> >I reported AGES ago, which is tickled by pccbb because it uses

What is the meaning of "Stray interrupt on IRQ 7"?  I have gotten that
message repeated over and over in two distinct situations:

1)     NetBSD/i386 1.4.2 after compiling the kernel with the option
"CONSDEVNAME=\"com\"" in order to use a serial console.  The messages
never appeared before changing over to a serial console.  I was able
to solve the problem by changing,
     "lpt0   at isa? port 0x378"
to,
     "lpt0    at isa? port 0x378 irq 7"
and recompiling the kernel.

2)     NetBSD/pc98 1.4.3 when using the lan card Ungermann-Bass PC85152,
which uses the Fujitsu MB86960A chip.  It was configured in the kernel as:
     "mbe*    at isa? port 0x00d0 irq 3 flags 0x70000".
The only solution was to not use the card.  However, the messages do not
appear everytime the machine is turned on, and the messages only appear in
sporadic bursts, so I continue to use the card in a low-usage machine.

Just curious.  TIA.

henry nelson