pccard network interface is lost on resume (+ fix)

The fix I gave may not be correct, and it may not work all the time.

I checked my Debian system which does not have this problem, and it has an "allow-hotplug eth1" line in /etc/network/interfaces. Added this line to the Ubuntu system does not fix the problem. In any case, having resume bring up the same set of interfaces that were active on suspend seems most correct, so an allow-hotplug "fix" doesn't seem correct for any system.

My current fix is to add a resume.d script to do "ifdown eth1; ifup eth1".

The ifdown/ifup doesn't always fix the problem either. Sadly, I'll be setting my kids' computer up with Debian instead of Ubuntu.

I've fixed it simply by moving the discovery of the IFs prior to pcmcia-eject.

I hope that now this bug gets accepted and fixed ;)

Here is my '/etc/acpi/suspend.d/55-down-interfaces.sh' file:

#!/bin/sh

# Find the currently running network interfaces...
INTERFACES=`/sbin/ifconfig | awk '/^[^ ]+/ {print $1}'`

pccardctl eject

# Get rid of any currently running dhclients
killall dhclient dhclient3 2>/dev/null
rm /var/pid/dhclient.*.pid

# And shut them down
for x in $INTERFACES; do
    ifdown $x;
    ifconfig $x down;
done

Regards,
  Kostis

Thanks for the comment. I wonder how many people have this problem? Somehow everything manages to work fine when I run debian unstable on the same system, and its 55-down-interfaces.sh sets INTERFACES after pccardctl eject:

#!/bin/sh

pccardctl eject

# Get rid of any currently running dhclients
killall dhclient dhclient3 2>/dev/null

# Find the currently running network interfaces...
INTERFACES=`/sbin/ifconfig | awk '/^[^ ]+/ {print $1}'`

# And shut them down
for x in $INTERFACES; do
    ifdown $x;
    ifconfig $x down;
done

Hi,

I had exactly the same problem and I found that the present bug is linked to this one : Bug #124499, first reported on 2007-07-07 by wildthewiz.
I used the following patch and now everything works fine :

/etc/udev/rules.d/85-ifupdown.rules

-#SUBSYSTEM=="net", DRIVERS=="?*", GOTO="net_start"
+SUBSYSTEM=="net", GOTO="net_start"

The problem came from Udev scripts for Network PCMCIA cards and not from ACPI suspend/resume scripts.

Regards,
Denis

Thank you for your bug report and investigations.
I'm marking it as duplicate of bug 124499.

Please correct me, if I'm wrong. Thanks.