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    SubjectRe: [PATCH 4.9 00/63] 4.9.161-stable review
    On Tue, Feb 26, 2019 at 09:41:09AM -0800, Guenter Roeck wrote:
    > On Mon, Feb 25, 2019 at 10:11:00PM +0100, Greg Kroah-Hartman wrote:
    > > This is the start of the stable review cycle for the 4.9.161 release.
    > > There are 63 patches in this series, all will be posted as a response
    > > to this one. If anyone has any issues with these being applied, please
    > > let me know.
    > >
    > > Responses should be made by Wed Feb 27 19:50:06 UTC 2019.
    > > Anything received after that time might be too late.
    > >
    > Build results:
    > total: 172 pass: 170 fail: 2
    > Failed builds:
    > powerpc:defconfig
    > powerpc:ppc6xx_defconfig
    > Qemu test results:
    > total: 315 pass: 315 fail: 0
    >
    > Same build error as with v4.4.y, plus:
    >
    > arch/powerpc/platforms/pseries/hotplug-memory.c: In function ‘dlpar_memory’:
    > arch/powerpc/platforms/pseries/hotplug-memory.c:782:9: error:
    > ‘rc’ may be used uninitialized in this function
    >
    > which I completely fail to understand. It doesn't seeem to affect
    > any other kernel version, and it looks like it is another compiler bug.
    > I'll see if I can find out how to avoid it (other than reverting
    > to an older version of gcc). Not a concern for now.
    >
    The problem seems to be related to dependencies. It is addressed upstream
    with commit 2b800f7c0c6c ("powerpc/cell: Drop select of MEMORY_HOTPLUG").
    After this patch is applied, MEMORY_HOTPLUG is no longer enabled with
    powerpc:defconfig, and the problem is no longer seen.

    Copying Michael to see if there is any concern about having this patch
    applied to v4.9.y.

    Guenter

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