build failure on linus' latest master branch

build failure on linus' latest master branch

[Steve Wise]

Hey Leon, I hit this trying to compile Linus' latest master branch.
 
 CC [M]  drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function
âreclaim_pages_cmd.clone.0â:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:347: error: call to
â__compiletime_assert_347â declared with attribute error: BUILD_BUG_ON failed:
__mlx5_bit_off(manage_pages_out, pas[i]) % 64
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function âgive_pagesâ:
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:290: error: call to
â__compiletime_assert_290â declared with attribute error: BUILD_BUG_ON failed:
__mlx5_bit_off(manage_pages_in, pas[i]) % 64
make[5]: *** [drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o] Error 1

Is there a fix for this?

Thanks,

Steve.

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Re: build failure on linus' latest master branch

[Leon Romanovsky]

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On Mon, Oct 10, 2016 at 10:41:09AM -0500, Steve Wise wrote:
> Hey Leon, I hit this trying to compile Linus' latest master branch.
>
>  CC [M]  drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function
> âreclaim_pages_cmd.clone.0â:
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:347: error: call to
> â__compiletime_assert_347â declared with attribute error: BUILD_BUG_ON failed:
> __mlx5_bit_off(manage_pages_out, pas[i]) % 64
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function âgive_pagesâ:
> drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:290: error: call to
> â__compiletime_assert_290â declared with attribute error: BUILD_BUG_ON failed:
> __mlx5_bit_off(manage_pages_in, pas[i]) % 64
> make[5]: *** [drivers/net/ethernet/mellanox/mlx5/core/pagealloc.o] Error 1
>
> Is there a fix for this?

We investigated a lot this failure and it appears on specific and very
old GCC 4.4.
http://www.spinics.net/lists/linux-rdma/msg39135.html
http://marc.info/?t=147614305200001&r=1&w=2

And the fix is http://marc.info/?l=linux-netdev&m=147615976207362&w=2

>
> Thanks,
>
> Steve.
>
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RE: build failure on linus' latest master branch

[Steve Wise]

> > Is there a fix for this?
> 
> We investigated a lot this failure and it appears on specific and very
> old GCC 4.4.
> http://www.spinics.net/lists/linux-rdma/msg39135.html
> http://marc.info/?t=147614305200001&r=1&w=2
> 
> And the fix is http://marc.info/?l=linux-netdev&m=147615976207362&w=2
> 

Thanks.  So was it ever merged?


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Re: build failure on linus' latest master branch

[Leon Romanovsky]

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On Tue, Oct 11, 2016 at 09:30:35AM -0500, Steve Wise wrote:
> > > Is there a fix for this?
> >
> > We investigated a lot this failure and it appears on specific and very
> > old GCC 4.4.
> > http://www.spinics.net/lists/linux-rdma/msg39135.html
> > http://marc.info/?t=147614305200001&r=1&w=2
> >
> > And the fix is http://marc.info/?l=linux-netdev&m=147615976207362&w=2
> >
>
> Thanks.  So was it ever merged?

Not yet, I hope that Dave or Doug will forward that patch to Linus
before -rc1 is released.

>
>
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Re: build failure on linus' latest master branch

[Doug Ledford]

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On 10/11/2016 3:36 PM, Leon Romanovsky wrote:
> On Tue, Oct 11, 2016 at 09:30:35AM -0500, Steve Wise wrote:
>>>> Is there a fix for this?
>>>
>>> We investigated a lot this failure and it appears on specific and very
>>> old GCC 4.4.
>>> http://www.spinics.net/lists/linux-rdma/msg39135.html
>>> http://marc.info/?t=147614305200001&r=1&w=2
>>>
>>> And the fix is http://marc.info/?l=linux-netdev&m=147615976207362&w=2
>>>
>>
>> Thanks.  So was it ever merged?
> 
> Not yet, I hope that Dave or Doug will forward that patch to Linus
> before -rc1 is released.

That patch isn't even on my radar.


-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
    GPG Key ID: 0E572FDD


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Re: build failure on linus' latest master branch

[Leon Romanovsky]

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On Tue, Oct 11, 2016 at 04:47:53PM -0400, Doug Ledford wrote:
> On 10/11/2016 3:36 PM, Leon Romanovsky wrote:
> > On Tue, Oct 11, 2016 at 09:30:35AM -0500, Steve Wise wrote:
> >>>> Is there a fix for this?
> >>>
> >>> We investigated a lot this failure and it appears on specific and very
> >>> old GCC 4.4.
> >>> http://www.spinics.net/lists/linux-rdma/msg39135.html
> >>> http://marc.info/?t=147614305200001&r=1&w=2
> >>>
> >>> And the fix is http://marc.info/?l=linux-netdev&m=147615976207362&w=2
> >>>
> >>
> >> Thanks.  So was it ever merged?
> >
> > Not yet, I hope that Dave or Doug will forward that patch to Linus
> > before -rc1 is released.
>
> That patch isn't even on my radar.

I had in mind to wait till v2 will be sent before asking you and/or Dave
forward it to Linus.
http://marc.info/?l=linux-netdev&m=147623786131380&w=2

Thanks

>
>
> --
> Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>     GPG Key ID: 0E572FDD
>




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