On Thu, Apr 19, 2001 at 02:28:36PM -0400, Steve Bellovin wrote:
>
> On a new Thinkpad T21 laptop running 1.5, I tried inserting a PCMCIA 
> Maxtor hard drive.  When I do, the machine hangs.  It prints
> "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
level-trigger mode.