Hi Jefferson,

I usually see you on the tcpdump-workers list, but as it happens we are 
apparently both on this list, and what's more, have both run into this 
problem.

You write:
> Boot is fine; I have access to the console over IPMI/SOL during boot, 
> all the way to getting an agetty login banner and prompt. But once I 
> disconnect my IPMI/SOL session, after some delay, the BMC enters a kind 
> of feedback loop where the banner text is fed back into agetty. agetty 
> then logs a lot of failed login attempts, and eventually init pauses 
> spawning agetty for 5 minutes because of excessive restarts.

The problem here is that the BMC is treating the serial port as a 
potential source of IPMI or shell commands (at least, when it is not 
running SoL over the serial port.  Follow the instructions I gave in the 
most recent thread about this to disable IPMI serial access and you 
should be good.

http://www.mail-archive.com/[email protected]/msg00029.html

@alex

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