Re: fix swapping on 8xx?

In message [off-list ref] you wrote:

quoted

Please do not remove stuff that is needed and used to work (in 2.4).

Note the bug in question exists in 2.4, and I think really even 2.2.

Hm... as far as I can remember (and see in the change logs) the  only
fix  we  implemented  for our 2.4.25 tree to get swapping on a MPC8xx
working was a set of bad offsets in include/asm-ppc/pgtable.h - see
http://www.denx.de/cgi-bin/gitweb.cgi?p=linuxppc_2_4_devel.git;a=commit;h=e6d7a1c83f9fd5820cdb85389d6a8f2207f3641d

With this change swapping works fine for us - some of  our  customers
have been using this code in production for over two years now.

Best regards,

Wolfgang Denk

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On Nov 8, 2005, at 5:46 PM, Wolfgang Denk wrote:

Hm... as far as I can remember ....

Yes, your patch looks correct.  I'll just map these changes
on top of the PTEs to verify there aren't some status
bits that we may still incorrectly update.  When I originally
selected the bit positions for the PTEs I didn't properly
consider the usage of the PTE during swap (nor did
I always have the options I wanted :-))

Among everything else I promised, I'll try to get all of these
updates quickly sorted out.

Thanks for all of these pointers to old patches, saves
me time looking them up :-)


	-- Dan