Re: [PATCH] serial: remove "too much work for irq" printk

[H. Peter Anvin]

Alan Cox wrote:
> > This is going to put trouble in other places unless, at least, it can be 
> > turned off.  The UART serial interface is heavily emulated as a console 
> > interface without an actual serial port behind it, both in hardware and 
> > software.  Rates will typically vastly exceed real serial port rates, 
>
> Yes Dell do it, HP do it, IBM do it. Have done for years, never caused us
> a problem. Its only KVM tripping it.
>
> As to bit rate we support up to about 1 to 1.5 Mbit.

FWIW, the highest rate I've seen in hardware is a FIFO about 4K deep 
that can be polled at about 25 MHz when all the overhead is accounted for.

	-hpa
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