Hi,

I have a xircom CBE2-100 ethernet card that I know(as a matter of fact) is
faulty. The warranty on the card expired and couldn't take it back to
the manufacturer. Anyway, I hotplugged it into the sock with no problem at
all. However, when I try to bring up the interface, the kernel hangs. If I
unplug the card, the kernel comes back to life and resumes. 

I broke to kdb(attached as kdb.txt) and noticed that the kernel was alive
but overwhelmed by the unacked interrupts(11) from the card. Here's what 
it looks like on the /proc interface:

root@darkstar:/home/labo# cat /proc/interrupts; ifconfig eth1 up; cat
/proc/interrupts

           CPU0
  0:      93211          XT-PIC  timer
  1:       3905          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  Maestro3(i)
  9:       7212          XT-PIC  orinoco_cs
 11:     142006          XT-PIC  Texas Instruments PCI1225, Texas 
Instruments PCI1225 (#2), usb-uhci
 12:       3426          XT-PIC  PS/2 Mouse
 14:       3016          XT-PIC  ide0
 15:          5          XT-PIC  ide1
NMI:          0
ERR:          0

           CPU0
  0:      93692          XT-PIC  timer
  1:       3906          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:          0          XT-PIC  Maestro3(i)
  9:       7213          XT-PIC  orinoco_cs
 11:     203826          XT-PIC  Texas Instruments PCI1225, Texas
Instruments PCI1225 (#2), usb-uhci, eth1
 12:       3426          XT-PIC  PS/2 Mouse
 14:       3016          XT-PIC  ide0
 15:          5          XT-PIC  ide1
NMI:          0
ERR:          0


The symptoms of the problem show at
drivers/net/pcmcia/xircom_tulip_cb: xircom_interrupt() where the interrupt
is never acknowledge(due to flawed hardware). 

I have attached the kernel logs(as dmesg.txt) pertaining to this
operation along with lspci, ver_linux, etc(hw.txt) .

Shouldn't the driver graciously filter/diagnose this anomaly before it
gets out of hands?

thank you for your time,

Youssef Hmamouche