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SubjectRe: Trouble with swiotlb
Roland Fehrenbacher wrote:
>>>>>>"Randy" == Randy Dunlap <Randy.Dunlap> writes:
>
>
> Randy> 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.
>
> Randy> Looks like it just needs 'swiotlb' exported (as in 2.6.x).
> Randy> Can you test the attached patch? I don't have 2.4.x
> Randy> booting on x8-64 yet.
>
> Hi Randy,
>
> thanks for the fast reply. Your patch solved the problem. I can boot
> Opterons and EM64T Xeons now without any problems.

Thanks for the results. Marcelo, can you rip out my garbaged patch
header/description before applying it? :)


> Roland
>
> linux-2428-work
> <description>
>
> Signed-off-by: Your Name <email@domain.tld>
>
> diffstat:=
> arch/x86_64/kernel/setup.c | 1 +
> 1 files changed, 1 insertion(+)
>
> diff -Naurp ./arch/x86_64/kernel/setup.c~swiotlb ./arch/x86_64/kernel/setup.c
> --- ./arch/x86_64/kernel/setup.c~swiotlb 2004-08-07 16:26:04.000000000 -0700
> +++ ./arch/x86_64/kernel/setup.c 2004-12-03 11:54:07.000000000 -0800
> @@ -52,6 +52,7 @@ int acpi_disabled;
> EXPORT_SYMBOL(acpi_disabled);
>
> int swiotlb;
> +EXPORT_SYMBOL(swiotlb);
>
> extern int phys_proc_id[NR_CPUS];


--
~Randy
-
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