On Mon, Nov 26, 2001 at 01:26:35PM -0700, Ronald G Minnich wrote: > It looks like interrupts. I'm up with init=/bin/bash, and I can type > commands, but it runs way behind and output is groups of about 8 characters > followed by long pauses. Input overrun occurs if I type more than 16 > characters too fast.
If you just want the system to work for the time being, the serial driver (at least in 2.2) goes into a polling mode if you tell it to use IRQ "0". I used to use this, and at 9600 baud you can't even tell it's polling. So you can at least get a useable system to debug. There is also a setting to get the kernel to "autoprobe" for the serial port IRQ, which is a nice way to find out if your serial port is configured to use the wrong IRQ. But for the life of me I can't remember how to actually set these from the kernel parameters :(
