lkml.org 
[lkml]   [2006]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: 2.6.17-rc5-mm1
    From
    Date
    On Mon, 2006-06-05 at 11:43 -0700, Christoph Lameter wrote:
    > On Mon, 5 Jun 2006, Andy Whitcroft wrote:
    >
    > > Ok. Did a split search on -mm2 for this. With the full stack I was
    > > still tripping up on the bad thread hand-off trigger above. However,
    > > when split searching I seemed to get somewhat different panics pretty
    > > commonly in the allocator. My split search led me to the start of the
    > > swapless page migration patches:
    > >
    > > GOOD:page-migration-cleanup-pass-mapping-to-migration-functions.patch
    > > GOOD:page-migration-cleanup-move-fallback-handling-into-special-function.patch
    > > ----:swapless-pm-add-r-w-migration-entries.patch
    > > -BAD:swapless-pm-add-r-w-migration-entries-fix-2.patch
    >
    >
    > So it happens with r-w-migration-entries but not without fix-2? Or does
    > it require the fix-2 in order to happen? Without the fix page migration
    > is broken.
    >
    > Does LTP include any page migration tests? Guess not? If not then this
    > could be simply due to code rearrangement making the problem appear in a
    > different way.
    >
    > Which test did this?
    >
    > Swap migration uses the two higest numbers of swap types (30 and 31). If
    > those are generated by something then we could have trouble but I do not
    > see how the patches could hurt otherwise.
    ltp has many weird swap tests

    (and I assume you're not talking about the pte's that are swapped, but
    only the file type in the swap signature; since the higher bits in the
    pte are used by the non-linear vma feature afaik)


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-06-05 20:53    [W:0.020 / U:10.788 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site