Roland Fehrenbacher wrote:
> Hi,
> 
> when building 2.4.28 or 2.4.27 on x86_64 with IOMMU and SWIOTLB support
> enabled I get unresolved symbol for 3 modules:
> 
> depmod: *** Unresolved symbols in /lib/modules/2.4.28/kernel/drivers/net/e1000/e1000.o
> depmod: *** Unresolved symbols in /lib/modules/2.4.28/kernel/drivers/usb/host/uhci.o
> depmod: *** Unresolved symbols in /lib/modules/2.4.28/kernel/drivers/usb/host/usb-uhci.o
> 
> When modprobing any of the modules I get:
> unresolved symbol swiotlb
> 
> The kernel boots fine on Opterons and EM64T Xeons otherwise.
> 
> Any ideas.

Looks like it just needs 'swiotlb' exported (as in 2.6.x).
Can you test the attached patch?
I don't have 2.4.x booting on x8-64 yet.

-- 
~Randy