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    SubjectRe: patch md-raid5-allow-for-more-than-2-31-chunks.patch added to 2.6.33-stable tree
    On Thu, 22 Apr 2010 20:11:00 -0700
    Greg KH <gregkh@suse.de> wrote:

    > On Thu, Apr 22, 2010 at 01:36:26PM +0200, Stefan Lippers-Hollmann wrote:
    > > Hi
    > >
    > > On Thursday 22 April 2010, Neil Brown wrote:
    > > > On Thu, 22 Apr 2010 04:08:30 +0200
    > > > "Stefan Lippers-Hollmann" <s.L-H@gmx.de> wrote:
    > > > > On Thursday 22 April 2010, gregkh@suse.de wrote:
    > > [...]
    > > > > > From 35f2a591192d0a5d9f7fc696869c76f0b8e49c3d Mon Sep 17 00:00:00 2001
    > > > > > From: NeilBrown <neilb@suse.de>
    > > > > > Date: Tue, 20 Apr 2010 14:13:34 +1000
    > > > > > Subject: md/raid5: allow for more than 2^31 chunks.
    > > > > >
    > > > > > From: NeilBrown <neilb@suse.de>
    > > > > >
    > > > > > commit 35f2a591192d0a5d9f7fc696869c76f0b8e49c3d upstream.
    > > > > >
    > > > > > With many large drives and small chunk sizes it is possible
    > > > > > to create a RAID5 with more than 2^31 chunks. Make sure this
    > > > > > works.
    > > > > >
    > > > > > Reported-by: Brett King <king.br@gmail.com>
    > > > > > Signed-off-by: NeilBrown <neilb@suse.de>
    > > > > > Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
    > > > >
    > > > > This patch, as part of the current 2.6.33 stable queue, breaks compiling
    > > > > on i386 (CONFIG_LBDAF=y) for me (amd64 builds fine):
    > > > >
    > > > > [...]
    > > > > BUILD arch/x86/boot/bzImage
    > > > > Root device is (254, 6)
    > > > > Setup is 12700 bytes (padded to 12800 bytes).
    > > > > System is 2415 kB
    > > > > CRC db6fa5fa
    > > > > Kernel: arch/x86/boot/bzImage is ready (#1)
    > > > > ERROR: "__umoddi3" [drivers/md/raid456.ko] undefined!
    > > > >
    > > > > reverting just this patch fixes the problem for me.
    > > >
    > > > Thanks for testing and reporting.
    > > >
    > > > If you could verify that this additional patch fixes the compile error I
    > > > would really appreciate it.
    > >
    > > I can confirm that this patch on top of the original
    > > md-raid5-allow-for-more-than-2-31-chunks.patch fixes the build problem on
    > > i386 for me (amd64 continues to build fine as well).
    > >
    > > Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
    >
    > Neil, care to push this to Linus?

    I've sent him a request to pull it from git://neil.brown.name/md for-linus

    Thanks.
    NeilBrown


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