Re: [PATCH] Re: Sparc32: random invalid instruction occourances on sparc32 (sun4c)

[Mark Fortescue <mark@mtfhpc.demon.co.uk>]

Hi David,

Another related point that may also need to be considered is that I think 
I am correct in saying that on ARM and on the 64bit platforms, sizeof 
(unsigned long long) is 16 (128bits).

Should the RedZone words be specified as __u64 not the unsigned long long 
used or does the alignment need to be that of unsigned long long ?

Regards
 	Mark Fortescue.

  On Tue, 3 Jul 2007, David Woodhouse wrote:

> On Wed, 2007-07-04 at 04:27 +0100, Mark Fortescue wrote:
>> I tried the previous patch and it looks like it fixes the issue however
>> one of the test builds I did caused depmod to use up all available memory
>> (40M - kernel memory) before taking out the kernel with the oom killer.
>> At present, I do not know if it is a depmod issue or a kernel issue.
>> I will have to do some more tests later on to day.
>
> That's almost certain to be an unrelated issue.
>
>> I have looked at the latest patch below and am I am still not sure about
>> two areas. Please take a look at my offering based on your latest
>> patch (included here to it will probably get mangled).
>>
>> Note the change to lines 2178 to 2185. I have also changed/moved the
>> alignment of size (see lines 2197 to 2206) based on your changes.
>
> The first looks correct; well spotted. The second is just cosmetic but
> also seems correct. I might be inclined to make the #define
> 'RED_ZONE_ALIGN' and use it in the other places too.
>
> -- 
> dwmw2
>
> -
> To unsubscribe from this list: send the line "unsubscribe sparclinux" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>