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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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