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SubjectRe: BUG: 2.4.18 & ALI15X3 DMA hang on boot
John Langford wrote:
> I went nuts with printk statements and managed to isolate the hang to
> one particular line of code. The final printk in this code fragment
> never gets executed.
>
> } else if (m5229_revision >= 0xC3) {
> /*
> * 1553/1535 (m1533, 0x79, bit 1)
> */
> printk("ata66_ali15x3 } else if (m5229_revisi\on >= 0xC3) {\n");
> pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);

^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

pci_write_config to isa_dev???? This looks at least suspicious.
You may very well check whatever isa_dev is trully a PCI device
handle or just some random IO base for ISA bus!

> }
> printk("ata66_ali15x3 endif\n");
>
> Art, Dave, and Ben may or may not have the same problem. It would be
> interesting to know if they get a hang here.
>
> Any ideas for fixing?

See above :-)

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