RE: 2.5.x and 8250 UART problems

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Shouldn't it be fixed, it should work normally anyway.

Cheers, Dean McEwan. Currently hacking KGI, which I don't understand, oh and ask me about OpenModemTalk...

On 	Sat, 5 Oct 2002 16:18:39 +0100 (BST) 	[e-mail] wrote:

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Subject: Re: 2.5.x and 8250 UART problems
To:	[e-mail] (bert hubert)
Date:	Sat, 5 Oct 2002 16:18:39 +0100 (BST)
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> > I've noticed that 8250 UART based serial port performance is poorer in
> > 2.5.x than 2.4.x and 2.2.x, on a couple of my machines.
> > 
> > The 486 SX-20 with 4 MB RAM, running 2.2.21 reliably achieves about 650
> > BPS download from another machine, with the port runnnig at 9600 bps. 
> > With 2.5.40, many characters are lost at 9600, making, e.g. a ZModem
> > transfer retry for almost every block.
> 
> Have you tried 'hdparm -u'?

Hmmm, I can do, but I thought it was a Bad Thing (tm) for ISA based controllers?  I could be wrong...

John.