Subject: Re: hardening pcmcia_cis.c against mapping failures
To: None <firstname.lastname@example.org>
From: John Kohl <email@example.com>
Date: 06/27/2000 17:03:43
>>>>> "Martin" == Martin Husemann <firstname.lastname@example.org> writes:
>> On my ThinkPad 600E, using the default RBUS address for cardbus blows chunks
>> and leads to bogus data reads for the CIS data on a card. That causes a
>> page fault when debugging is not enabled.
Martin> I'm seeing the same on a different ThinkPad, but only for some cards.
Martin> I've a PR open for this, with a "fix": it inserts a few delays, which
Martin> makes the data read OK.
Martin> Making it foolproof is another (good) thing. Does the card work with your
The card doesn't work, but neither does it cause a page fault.
I can get it working fine if I also adjust the rbus base offset (in
arch/i386/i386/rbus_machdep.c, I think it is) to 1GB instead of 2GB.
That's probably another option that should be listed in some config
file/hints for laptops....
==John Kohl <email@example.com>, <firstname.lastname@example.org>
Home page: <http://people.ne.mediaone.net/jtk/>
Bicycling and Skiing to keep fit.