v4.4.12 build: 0 failures 3 warnings (v4.4.12)

v4.4.12 build: 0 failures 3 warnings (v4.4.12)

[Build bot for Mark Brown]

Tree/Branch: v4.4.12
Git describe: v4.4.12
Commit: 351d2d4d31 Linux 4.4.12

Build Time: 139 min 58 sec

Passed:    9 / 9   (100.00 %)
Failed:    0 / 9   (  0.00 %)

Errors: 0
Warnings: 3
Section Mismatches: 0

-------------------------------------------------------------------------------
defconfigs with issues (other than build errors):
      1 warnings    0 mismatches  : arm64-allmodconfig
      2 warnings    0 mismatches  : arm-allmodconfig

-------------------------------------------------------------------------------

Warnings Summary: 3
	  1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=]
	  1 ../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function]
	  1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]



===============================================================================
Detailed per-defconfig build reports below:


-------------------------------------------------------------------------------
arm64-allmodconfig : PASS, 0 errors, 1 warnings, 0 section mismatches

Warnings:
	../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function]

-------------------------------------------------------------------------------
arm-allmodconfig : PASS, 0 errors, 2 warnings, 0 section mismatches

Warnings:
	../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=]
	../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
-------------------------------------------------------------------------------

Passed with no errors, warnings or mismatches:

arm64-allnoconfig
arm-multi_v5_defconfig
arm-multi_v7_defconfig
x86_64-defconfig
arm-allnoconfig
x86_64-allnoconfig
arm64-defconfig
close failed in file object destructor:
sys.excepthook is missing
lost sys.stderr

Re: v4.4.12 build: 0 failures 3 warnings (v4.4.12)

[Arnd Bergmann]

On Thursday, June 2, 2016 3:01:27 AM CEST Build bot for Mark Brown wrote:
> -------------------------------------------------------------------------------
> 
> Warnings Summary: 3
>           1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=]
>           1 ../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function]
>           1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]

That looks really nice! I hadn't noticed we were down that far with the
warnings.

The two stack warnings are fixed by c87bf431448b ("gcov: disable tree-loop-im
to reduce stack usage"), which is now in mainline. I think this warns about
a valid bug (gcc misoptimization leading to excessive stack usage).

Greg, would you consider that fix for backports?

The Xen warning unfortunately appeared with 58d378b24b7f ("xen/balloon: Fix
crash when ballooning on x86 32 bit PAE"), which was backported from mainline
into v4.4.10.
I made a fix that is in -next now, bdadcaf2a7c1 ("xen: remove incorrect
forward declaration"), but I don't know when that will get merged.

	Arnd

Re: v4.4.12 build: 0 failures 3 warnings (v4.4.12)

[Greg KH]

On Thu, Jun 02, 2016 at 09:38:16AM +0200, Arnd Bergmann wrote:
> On Thursday, June 2, 2016 3:01:27 AM CEST Build bot for Mark Brown wrote:
> > -------------------------------------------------------------------------------
> > 
> > Warnings Summary: 3
> >           1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=]
> >           1 ../drivers/xen/balloon.c:155:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function]
> >           1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
> 
> That looks really nice! I hadn't noticed we were down that far with the
> warnings.
> 
> The two stack warnings are fixed by c87bf431448b ("gcov: disable tree-loop-im
> to reduce stack usage"), which is now in mainline. I think this warns about
> a valid bug (gcc misoptimization leading to excessive stack usage).
> 
> Greg, would you consider that fix for backports?

Yes!  I keep trying to get this down to 0 to make it easier to notice
when backports go wrong.  In looking at my queue, it's still in there,
just haven't gotten to it yet...

> The Xen warning unfortunately appeared with 58d378b24b7f ("xen/balloon: Fix
> crash when ballooning on x86 32 bit PAE"), which was backported from mainline
> into v4.4.10.
> I made a fix that is in -next now, bdadcaf2a7c1 ("xen: remove incorrect
> forward declaration"), but I don't know when that will get merged.

See, I missed this getting added, not good on my part.  I'll watch out
for this to be merged, thanks.

greg k-h



> 
> 	Arnd
> --
> To unsubscribe from this list: send the line "unsubscribe stable" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html