Re: [Dri-devel] PPC Lockup (ati-pcigart-branch)

Roman Zippel wrote:

quoted

quoted

[drm] drm_sg_alloc
i: ca292000
pgd: c014dca0
pmd: c014dca0
pte: 00000a48
Oops: kernel access of bad area, sig: 11

Looking at pgd/pmd, pte seems fishy for a pointer. Any reason why this
code shouldn't work on PPC?

There is no pte table and so there is nothing mapped at that address, you
can use (pgd|pmd|pte)_present() to test for that.

You are saying we should use *_present() to check each of these before using
*_offset to get the pointer? And what if *_present() is false?


Michel


--
Earthling Michel Dänzer (MrCooper)    \   Debian GNU/Linux (powerpc) developer
CS student, Free Software enthusiast   \        XFree86 and DRI project member

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