RE: [Xen-devel] Re: Lockup at boot with nFroce SATA

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> > My guess would be that there's some code in the driver that 
> is taking 
> > liberties with treating physical and bus addresses as the 
> same. If you 
> > can add some tracing to the driver to narrow things down we may be 
> > able to help you.
> 
> I have very similar problem with sata_via (SCSI) driver.
> Can you give me pointers to track down the problem ?

Are you getting a hang or a kernel oops?

See if the driver has any debug tracing you can enable. If not, just sprinkle 
some printk's around. Pay particular attention to any 'virt_to_phy' or similar 
functions - they should probably be virt_to_bus.

I suspect the problem is localised to the driver, as the sata_promise driver 
works for us just fine.

Ian


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