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SubjectRe: BUG: 2.4.18 & ALI15X3 DMA hang on boot
On Sat, Mar 23, 2002 at 02:11:21PM +0100, Martin Dalecki wrote:
> 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!

You may wanted to check yourself:

isa_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);

so the command is valid.

> > 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 :-)

--
Vojtech Pavlik
SuSE Labs
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