I was beating my machine with 8139 NICs (and a slow CPU and only 128MB
RAM) by running a lot of UDP and TCP connections through it... I usually
set my socket buffers quite large, so they may be consuming too much of
the vital kernel RAM.
After a while, I saw this repeated over and over on the console:
eth: Memory squeeze, dropping packet.
Now, that is the only thing I can see on this machine. I cannot
get a bash prompt and changing virtual terminals does not work.
I did not see the OOM handler kick in, though it's possible it
scrolled off the screen. At the least, it may be worthwhile to
throttle the squeeze messages...
As a caveat: I'm running some of my own hacked up networking
code, and it's possible its leaking memory or doing something else
bad. I have not seen this problem on my other machine with different
NIC (and faster CPU and more RAM), though.
Take it easy,
Ben Greear <greearb@xxxxxxxxxxxxxxx> <Ben_Greear AT excite.com>
President of Candela Technologies Inc http://www.candelatech.com
ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear