I have determined that if the LAN cable is removed prior to a shutdown of a 
Toshiba Portege Z930, the system will hang.  With the cable plugged in, the 
system shuts down fine.  If I unload the e1000e ethernet driver prior to the 
shutdown request, the platform will shut down successfully.   I am using the 
linux kernel 3.2.23.  Are there any known issues with this driver?  How can I 
go about debugging this?  What files in particular should I instrument to help 
me understand what is going on?


Thanks
Roger R. Cruz
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