Re: [2/2] 2.6.22-rc4: known regressions v3

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On Thu, Jun 14, 2007 at 03:57:25PM +0100, Mark Fortescue wrote:
> Benh's ptep_set_access_flags() patch needs to be applied in order to get 
> anyware with sun4c for all kernels >= linux-2.6.15. If not applied, you 
> will be lucky to get sash running as your init and even that will have 
> very limitit capabilities before it locks up the processor (power up 
> reset required).
> It has been applied to both the kernels I used for testing so this 
> problem is independent of the ptep_set_access_flags patch but that 
> does not mean that it is not a related issue.
> I will try to get some testing done over the weekend to narrow down 
> when the random illegal instructions first occour.
> If I start with 2.6.21 then if that is OK, then I should be able to narow 
> the issue down without too much trouble. If it is between 2.6.20 and 
> 2.6.21 then it will be a right pig as there are a large number of commits 
> that don't compile for sun4c between these two. What I am hoping is that 
> it occours in the 2.6.22-rc2 as per the x86_64.

Sounds like I'll be digging through my hardware stockpiles this weekend
to find a functional sun4c box.

-- wli
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