Re: threads and fork on machine with VIPT-WB cache

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On Thu, Apr 8, 2010 at 6:44 PM, John David Anglin
<dave@xxxxxxxxxxxxxxxxxx> wrote:
>> On Thu, 08 Apr 2010, Helge Deller wrote:
>
>> > I tested your patch today on one of my machines with plain kernel 2.6.33 (32bit, SMP, B2000 I think).
>> > Sadly I still did see the minifail bug.
>> >
>> > Are you sure, that the patch fixed this bug for you?
>>
>> Seemed to, but I have a bunch of other changes installed.  Possibly,
>> the change to cacheflush.h is important.  It affects all PA8000.
>
> I also think the change suggested by James
>
> +       if (pte_dirty(old_pte))
>
> is important for SMP.  With the patch set that I sent, my rp3440 and
> gsyprf11 seem reasonably stable running 2.6.33.2 SMP.  I doubt all
> problems are solved but things are a lot better than before.

I have trimmed the CC a bit.

We need to start splitting up your giant "stability" patch into
manageable chunks.

For example, are the futex fixes anywhere for Kyle to pickup?

I could test those independently and submit to Kyle after testing.

Cheers,
Carlos.
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