Re: Problem recognizing card

On Wed, Mar 19, 2003 at 09:49:17AM +0530, Mayank Sharma wrote:

>     little update on the problem that i am facing. When the card is 
> inserted, the pcmcia driver detects the insertion and tries to configure 
> the card. uring configuration it first resets the card, calling the 
> pcmcia_low_level function to reset the card.

But the reset failed, right?

> After resetting the card it 
> makes an ioctl on the ds driver with the command DS_VALIDATE_CIS. As 
> part of this command it goes and reads the cis from the card 
> (read_cis_mem() in cistpl.c). While executing this function it hangs the 
> system and only card removal restores the system to sane state. 

Err... it only does this when you run "cardctl ident", right?  You
said the system only hangs when you issue a command to read the CIS
from a card that did not reset successfully, right?

> Apparently looks like after reseting the card, the first command to read 
> from the card is hanging(blocking). Any idea how can i debug this problem ?

I do not have any good ideas at the moment.

>   The problem disappears if i put some random printk's in the code, 
> moreover when the problem disappears, it appears on the other slot. 

Please explain; I don't understand what you're trying to say here at
all.  Exactly what were the random printk's, what problem went away,
and how did it appear on the "other slot"?  Didn't the problem affect
both slots to begin with?  Do the bad cards now work fine??

You also never responded to my suggestion:

> >You could also try putting:
> >
> > CORE_OPTS="unreset_limit=100"
> >
> >in /etc/sysconfig/pcmcia.

??

-- Dave


-------------------------------------------------------
This SF.net email is sponsored by: Does your code think in ink? 
You could win a Tablet PC. Get a free Tablet PC hat just for playing. 
What are you waiting for?
http://ads.sourceforge.net/cgi-bin/redirect.pl?micr5043en