Re: linux 2.4.19-rc1 i845e workaround udma fix

[Gunther Mayer <gunther.mayer@gmx.net>]

Alan Cox wrote:

> Complain to your BIOS vendor
>
> A workaround for this BIOS flaw will be in the -ac tree in a week or so

Or try this patch today:

--- linux-2.4.19-rc1/arch/i386/kernel/pci-i386.c        Sat Jun 29 20:39:05
2002
+++ linux/arch/i386/kernel/pci-i386.c   Sat Jun 29 20:37:25 2002
@@ -314,8 +314,8 @@
        for(idx=0; idx<6; idx++) {
                r = &dev->resource[idx];
                if (!r->start && r->end) {
-                       printk(KERN_ERR "PCI: Device %s not available because
of resource collisions\n", dev->slot_name);
-                       return -EINVAL;
+                       printk(KERN_ERR "PCI: Device %s not available because
of resource collisions on idx=%d %x %x\n",
dev->slot_name,idx,r->start,r->end);
+                       printk("Temporary Workaround for 845E/845G:
ignoring.\n");
                }
                if (r->flags & IORESOURCE_IO)
                        cmd |= PCI_COMMAND_IO;

This increases hdparm -t from 3MB/sec to 41MB/sec.
-
Gunther