Date: Tue, 8 Oct 2002 13:06:43 +0800 (SGT) From: Chan Tur Wei <twchan@singnet.com.sg> To: "M. Warner Losh" <imp@bsdimp.com> Cc: current@FreeBSD.ORG Subject: Re: dc and PCMCIA still panic Message-ID: <20021008125918.E67735-100000@zaapth.twnet.org> In-Reply-To: <20021007.220252.50068329.imp@bsdimp.com>
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Hi,
This is the problem I'm having as well - that of running the Xircom
Realport REM56G on NEWCARD. The mapped attribute memory is bogusly all
zeroes, and as a result the parsing code simply runs off the end of the
mapped memory and thus faulting.
Testing for the condition avoids the fault but leaves the card unusable
under -newcard.
======================================================================
--- pccard_cis.c Tue Oct 8 13:04:34 2002
+++ pccard_cis.c.new Tue Oct 8 13:04:01 2002
@@ -152,6 +152,11 @@
while (1) {
/* get the tuple code */
+ if (tuple.ptr >= PCCARD_CIS_SIZE) {
+ ret = 1;
+ goto done;
+ }
+
tuple.code = pccard_cis_read_1(&tuple, tuple.ptr);
/* two special-case tuples */
======================================================================
Regards
-ah-zeep-
On Mon, 7 Oct 2002, M. Warner Losh wrote:
> Date: Mon, 07 Oct 2002 22:02:52 -0600 (MDT)
> From: M. Warner Losh <imp@bsdimp.com>
> To: mi@corbulon.video-collage.com
> Cc: current@FreeBSD.ORG
> Subject: Re: dc and PCMCIA still panic
>
> In message: <200210080355.g983tpBR018086@corbulon.video-collage.com>
> Mikhail Teterin <mi@corbulon.video-collage.com> writes:
> : > Even though it doesn't make sense, can you turn on the debugging
> : > information and run again? I use
> : >
> : > # Let's debug!
> : > hw.cbb.debug=1
> : > hw.pccard.debug=1
> : > hw.pccard.cis_debug=1
> : > hw.cardbus.debug=1
> : > hw.cardbus.cis_debug=1
> :
> : Actually, I lied... It is a Xircom RealPort Ethernet 10/100 + Modem 56
> : REM56G -- the xe card.
>
> Oh, that's different.... This is with my changes to pccard_cis.c?
> I've never been able to get my IBM version of this card to work at
> all...
>
> Do you get screen fulls of CIS parsing before the fall? That's what I
> see both before and after that change. I think that something strange
> is going on with a few cards that the code doesn't handle quite
> right. I have maybe 4 of them at the moment.
>
> Warner
>
>
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