Serial Port Speed Change, 2.4.10->2.4.16
Probably a dumb question, but I have a MIPS-based system that I'm running Linux on, and when moving from 2.4.10 kernel to 2.4.16 kernel, the # of characters per second on the serial console has dropped significantly.
The serial port used is a 16450 clone (it's built in to the processor, so no, I can't upgrade it). It's programmed to run at 9600 baud, 8N1. There's clearly no problem with the characters themselves. But while I can push ~1000 CPS under 2.4.10, I can only push ~100 CPS under 2.4.16. I've noticed that the CPS of the console is constant in 2.4.16, regardless of serial port speed.
Can anyone lend any insight into why I would've lost 90% of my serial port throughput moving between these two revs of the kernel?
Signature · 4 lines
------------------------------------------------- Justin Wojdacki [email protected] (408) 350-5032 Communications Processors Group -- Analog Devices