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    SubjectRe: Memory corruption & SCSI in 2.6.15
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    On Mon, 2005-12-12 at 12:51 -0800, Linus Torvalds wrote:
    > [ I applied Brian's patch, so hopefully it was the same issue, and current
    > git doesn't show this problem any more ]

    I'll be able to test in about 1h.

    > On Tue, 13 Dec 2005, Benjamin Herrenschmidt wrote:
    > >
    > > > Also, enabling DEBUG_PAGEALLOC might help, but that's not available on
    > > > powerpc.
    > >
    > > Remind me what is needed to get that working ? Unmapping of linear
    > > mapping pages ? (I suppose I could do that if I also disable using large
    > > pages for it).
    >
    > Yes, basically you'd have to allow the kernel mapping being unmapped one
    > page at a time.
    >
    > And yes, it's inefficient. Don't use it for performance measurements ;)

    Ok, I'll look into it. It's doable though it will definitely not be
    fast :)

    Ben.


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