Bug 32536

still exist in qa0322.

Is this cardbus or pcmcia ?

This is a cardbus system but it will support pcmcia

I was able to reproduce this with both a PCMCIA and a Cardbus card (on a C600).

This is a problem with the IRQ being shared betwen PCMCIA and
USB; with the usb-uhci driver unloaded it works OK.

how about doing what one of our engineer (Andy Jordan) figured out:

*****
1)The problem only occurred when the card was actively passing data (i.e. 
connected to the network) os in most cases, stopping the network service first 
seemed to do the trick.
2)I checked /etc/rc.d/init.d/pcmcia for the stop section which I have pasted 
below and found that it is only killing cardmgr. I got the same results when I 
tried to send SIGTERM to the PID manually so I know that is the process that is 
hanging. I was also able to verify that the config gets reloaded when cardmgr 
receives SIGHUP -at least that part seems to be working.
3)If I inserted " cardctl eject " somewhere before the kill signal is sent, it 
worked fine. Which seemed to correspond with your findings that a hot eject 
worked fine. So maybe as a workaround, I added the line in red below

stop()
{
	echo -n $"Shutting down PCMCIA card services:"
	if [ -s /var/run/cardmgr.pid ] ; then
		PID= 'cat /var/run/cardmgr.pid'
		/sbin/cardctl eject
		kill $PID
		echo -n $" cardmgr"
		$Give cardmgr a few seconds to handle the signal
		kill -0 $PID 2>/dev/null && sleep 2 && \
		kill -0 $PID 2>/dev/null && sleep 2 && \
		kill -0 $PID 2>/dev/null && sleep 2 && \
		kill -0 $PID 2>/dev/null 
	fi
	etcetera...etcetera...

As far as I can tell, cardmgr is supposed to unload the drivers using insmod -
or modprobe if insmod fails- when it receives SIGTERM. I can only assume that 
the issue is in cardmgr, insmod or the fact that the sockets are now handled as 
yenta -which I think is new in the 2.4 kernel.
******

oh, we've already fixed this one - it was a kernel bug where yenta_socket didn't
turn off event notification on unload.  When hw events happened it stormed the
machine and froze it.

Should be fine in the 2.4.2-0.1.40 and above kernels.

still occurring with a PSION gold card Modem. in 2.4.2-0.1.49

when I have the PSION Gold card Modem connected, I type in the command

service pcmcia stop
I eject the card

Then the system hangs.  This does not happen on the 3Com 3c575 Network card any 
more.

Hm, I tried this on a gold card here with the C600 and it works OK;
was this the C600 or the i8000 (or something else)?

I tried it with a Gold card on 2 different C600 systems.

Can you please try it with 2 cards in the systems (one network and one goldcard 
modem)?  stop the pcmcia service and then eject the cards one at a time.

I can get it to hang consistently.
Thanks.