Subject: kern/9442: wdc_pcmcia attach hangs when another card is present
To: None <firstname.lastname@example.org>
From: None <email@example.com>
Date: 02/17/2000 21:27:49
>Synopsis: wdc_pcmcia attach hangs when another card is present
>Responsible: kern-bug-people (Kernel Bug People)
>Arrival-Date: Thu Feb 17 21:27:01 2000
>Originator: Charles M. Hannum
>Release: -current as of 20000217
Toshiba Satellite 2550CDT or IBM WorkPad z50
System: NetBSD lop-nor.ihack.net 1.4T NetBSD 1.4T (LOP-NOR) #39: Thu Feb 17 22:05:07 EST 2000 firstname.lastname@example.org:/usr/src/sys/arch/i386/compile/LOP-NOR i386
If a card (such as an Ethernet card) is inserted in another slot on
the same PCMCIA controller, and is active (i.e. is getting interrupts),
the wdc_pcmcia attach usually hangs.
Plug in an Ethernet card, attach to a network, and then plug in a
PCMCIA or CompactFlash memory card.
This looks like it may be due to wdc_intr() being called spuriously
due to the IRQ being shared with the other card. The drive probe is
not very clean with respect to interrupt race conditions.