Re: [PATCH] I2O: mark i2o_config broken on 64-bit

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Hello,

Roland Dreier wrote:
 > -			//TODO 64bit fix
 > +			//FIXME: broken on 64-bit
 >  			sg[i].addr_bus = (u32) p->phys;
This looks worse than just broken on 64 bit.  I didn't even attempt to
understand what's going on here, but would this even work on 32 bit
systems that have physical addresses above 4 gigs (eg i386 with PAE)?

It's a kind of user-space driver :-D This part of the driver just send the data generated in the user-space program 1:1 to the controller. It works on 64-bit, but i doubt it works with 64-bit DMA addresses. This part of the code was copied from "drivers/scsi/dpt_i2o.c". I already tried to replace it with an IMHO nicer sysfs solution, but because this also required an "workaround" it was dropped again.



Best regards,


Markus Lidel
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Markus Lidel (Senior IT Consultant)

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