Re: unresolved symbols for drm module on sparc64

[Adrian Bunk <bunk@stusta.de>]

On Wed, Apr 05, 2006 at 03:30:00PM +0200, Per Øyvind Karlsen wrote:
> When building 2.6.17-rc1 on sparc64 I run into this problem:
> if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F System.map 
> -b /root/RPM/BUILD/kernel-linus-2.6/temp-root -r 2.6.17-rc1.16mdksmp; fi
> WARNING: /root/RPM/BUILD/kernel-linus-2.6/temp-root/lib/modules/2.6.17-rc1.16mdksmp/kernel/drivers/char/drm/drm.ko 
> needs unknown symbol dma_alloc_coherent
> WARNING: /root/RPM/BUILD/kernel-linus-2.6/temp-root/lib/modules/2.6.17-rc1.16mdksmp/kernel/drivers/char/drm/drm.ko 
> needs unknown symbol dma_free_coherent
> make: *** [_modinst_post] Error 1
> 
> I'm not subscribed to the list, just thought that I should report since it 
> recently broke, so CC me if any more info is needed.
> I'm also attaching my .config in case it might be of help:)
>...

Thanks for your report.

This is a known bug, and a fix is available at
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc1/2.6.17-rc1-mm1/broken-out/drm_pci-needs-dma-mappingh.patch
 
cu
Adrian

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