Re: stable-rc build: 0 warnings 2 failures (stable-rc/v4.4.63-29-ge636782)

Re: stable-rc build: 0 warnings 2 failures (stable-rc/v4.4.63-29-ge636782)

[Arnd Bergmann]

On Tue, Apr 25, 2017 at 7:08 PM, Olof's autobuilder <build@lixom.net> wrote:
>
> Failed defconfigs:
>         powerpc.pasemi_defconfig
>         powerpc.ppc64_defconfig
>
> -------------------------------------------------------------------------------
>
> Errors:
>
> /work/build/batch/arch/powerpc/kernel/misc_64.S:72: Error: .localentry expression for `flush_icache_range' does not evaluate to a constant

This is a regression in 4.4-stable-rc, caused by the backport of commit
8f5f525d5b83f7d7 ("powerpc/64: Fix flush_(d|i)cache_range() called from
modules").

The patch was also backported into v4.9-stable-rc, but did not cause
problems there. The fixes tag suggests that the patch is needed on
every version from 3.16 up, but apparently the fix needs to be a little
different compared to newer kernels.

        Arnd

Re: stable-rc build: 0 warnings 2 failures (stable-rc/v4.4.63-29-ge636782)

[Michael Ellerman]

Arnd Bergmann <arnd@arndb.de> writes:

> On Tue, Apr 25, 2017 at 7:08 PM, Olof's autobuilder <build@lixom.net> wrote:
>>
>> Failed defconfigs:
>>         powerpc.pasemi_defconfig
>>         powerpc.ppc64_defconfig
>>
>> -------------------------------------------------------------------------------
>>
>> Errors:
>>
>> /work/build/batch/arch/powerpc/kernel/misc_64.S:72: Error: .localentry expression for `flush_icache_range' does not evaluate to a constant
>
> This is a regression in 4.4-stable-rc, caused by the backport of commit
> 8f5f525d5b83f7d7 ("powerpc/64: Fix flush_(d|i)cache_range() called from
> modules").
>
> The patch was also backported into v4.9-stable-rc, but did not cause
> problems there. The fixes tag suggests that the patch is needed on
> every version from 3.16 up, but apparently the fix needs to be a little
> different compared to newer kernels.

Yeah, the auto-backport failed, and then I sent a version for 4.4 which
fixed the bug but broke other configs (big endian).

I've asked Greg to drop it for now.

I'll try again when I'm less sleep deprived :)

cheers

Re: stable-rc build: 0 warnings 2 failures (stable-rc/v4.4.63-29-ge636782)

[gregkh]

On Wed, Apr 26, 2017 at 03:00:19PM +1000, Michael Ellerman wrote:
> Arnd Bergmann <arnd@arndb.de> writes:
> 
> > On Tue, Apr 25, 2017 at 7:08 PM, Olof's autobuilder <build@lixom.net> wrote:
> >>
> >> Failed defconfigs:
> >>         powerpc.pasemi_defconfig
> >>         powerpc.ppc64_defconfig
> >>
> >> -------------------------------------------------------------------------------
> >>
> >> Errors:
> >>
> >> /work/build/batch/arch/powerpc/kernel/misc_64.S:72: Error: .localentry expression for `flush_icache_range' does not evaluate to a constant
> >
> > This is a regression in 4.4-stable-rc, caused by the backport of commit
> > 8f5f525d5b83f7d7 ("powerpc/64: Fix flush_(d|i)cache_range() called from
> > modules").
> >
> > The patch was also backported into v4.9-stable-rc, but did not cause
> > problems there. The fixes tag suggests that the patch is needed on
> > every version from 3.16 up, but apparently the fix needs to be a little
> > different compared to newer kernels.
> 
> Yeah, the auto-backport failed, and then I sent a version for 4.4 which
> fixed the bug but broke other configs (big endian).
> 
> I've asked Greg to drop it for now.

It's now dropped, thanks.

greg k-h