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User-Agent: Mozilla/5.0 (compatible; Konqueror/3.0.0-10; Linux)

Description of problem:
I've consistently had a problem with pcmcia startup hangs on several laptops running 7.3 after ungraceful shutdowns, and final figured it out I think.  When /var/lib/pcmcia/stab exists at boot time left over from the previous boot, /etc/init.d/pcmcia start tries to execute:

cat $RUN/stab | cleanup

which runs /etc/pcmcia/$CLASS stop $DEV

Tracing through, /sbin/ifdown line 50 checks to see if the device
is down, but for some reason doesn't believe this if DHCP is specified as $BOOTPROTO (can't figure out why this check is made?).
Execution therefore continues, even though eth0 is down, and line 53 executes "ip -o link show", which fails with "no such device".  The variable $FOUNDMACADDR isn't checked for a null result, and the script execs itself in the next if block at line 58 and loops with "no such device", but this output is suppressed in /etc/init.d/pcmcia, so startup just sees a hang.


Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. ungraceful shutdown while pcmcia network up, or manually create /var/lib/pcmcia/stab (with $BOOTPROTO set to dhcp)
2. /etc/init.d/pcmcia start or reboot

Actual Results:  System hangs if being booted at PCMCIA startup.
If system is already booted and /etc/init.d/pcmcia startup is being executed manually, ^C frees this up (presumably by breaking into looped exec's of /sbin/ifdown).


Expected Results:  System should cope with erroneous presence of /var/lib/pcmcia/stab by testing properly for network status of eth0 and recover.

Additional info:

Classing this as severity "high" as it prevents successful boot (and I've seen it lots of times on several machines) - please reassign if this is inappropriate.

Suggested possible solutions:

1) Check for eth0 in /etc/init.d/pcmcia startup and only "cleanup" if really up (not a good solution)

2) In /sbin/ifdown:
#    if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then
    if [ ! -z "$FOUNDMACADDR" -a "${FOUNDMACADDR}" != "${HWADDR}" ]; then

(better, but not completely clean)

3) Fix the call above in /sbin/ifdown to check_device_down to still discontinue execution even if $BOOTPROTO is dhcp (best solution?).