Re: Trouble with swiotlb

[Roland Fehrenbacher]

>>>>> "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.

Roland
 
linux-2428-work
<description>

Signed-off-by: Your Name <email@xxxxxxxxxx>

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];
 

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