Re: Problems with disk + network on 2.6.25.11-60.fc8

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From: Alan Cox
Date: Thursday, August 7, 2008 - 3:36 am

> It occurs to me that you might be implying there is some "chip config" 

There are two things you can play with. One is the UDMA burst mode on the
chip which should be getting set, the other is PCI latencies (which the
BIOS should have set up but you can play with)


Probably a good idea

Next things to try are

1.	edit drivers/ata/pata_pdc202xx_old.c
	after the line

	iowrite8(burst | 0x01, bmdma + 0x1f);

add

	printk(KERN_ERR "BURST was %02X\n", burst);

build/install/boot that kernel and see what it says.

The second (sledgehammer) approach would be to use setpci to set the
LATENCY_TIMER value on the pdc202xx_old and network card differently.

Alan
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Messages in current thread:
Problems with disk + network on 2.6.25.11-60.fc8, David Stuart, (Mon Aug 4, 10:39 am)
Re: Problems with disk + network on 2.6.25.11-60.fc8, David Stuart, (Mon Aug 4, 1:31 pm)
Re: Problems with disk + network on 2.6.25.11-60.fc8, David Stuart, (Mon Aug 4, 4:27 pm)
Re: Problems with disk + network on 2.6.25.11-60.fc8, David Stuart, (Mon Aug 4, 4:58 pm)
Re: Problems with disk + network on 2.6.25.11-60.fc8, David Stuart, (Wed Aug 6, 6:43 pm)
Re: Problems with disk + network on 2.6.25.11-60.fc8, Alan Cox, (Thu Aug 7, 3:36 am)