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None Well, I guess that's progress 

Forum: Xircom PCMCIA Ethernet Adapter Issues
Re: None Machine Lockup with high network traffic (Mark Harvey)
Re: Sad Total lockup with xircom in promiscuous mode (Mark Harvey)
Date: 1999, Dec 09
From: David Hinds <>

The "RX drop" messages will be turned off in 3.1.6, since they are
"normal": this card cannot possibly keep up with a 100baseT traffic
stream, because the data path between the card and the CPU is only
about 2MB/sec.  It works ok in non-promiscuous mode because a sender
will automatically throttle down its data rate when packets are
dropped.  In promiscuous mode, if the segment is loaded, you'll
just soak up 100% of your CPU time servicing receive interrupts. 

The system still shouldn't totally freeze.  Since you can recreate the
problem outside of VMWare, you should be able to use the instructions
in the PCMCIA-HOWTO for tracking down a kernel lock-up (i.e., direct
kernel messages to the console, cause the problem, see if you get a
kernel trap or can get a location for the freeze using alt-sysrq-P).

-- Dave

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