CentOS - Oct 2017 - Missing file in current kernel-devel package

Fred Smith wrote:
> On Thu, Oct 05, 2017 at 09:56:57AM -0400, m.roth at 5-cent.us wrote:
>> Ok, folks,
>>
>>    I've identified what my problem is, trying to install the NVidia
>> proprietary drivers: in kernel-devel-3.10.0-514.26.2.el7.x86_64, there
>> is a file
>> /usr/src/kernels/3.10.0-514.26.2.el7.x86_64/include/linux/fence.h
>>
>>    It does not exist in the kernel-devel-3.10.0-693.2.2.el7.x86_64
>> package. Is this something that got missed, or did HR drop it, or....?
>>
> I'm running that kernel with Nvidia 384.90, but I get the nvidia
> driver from elrepo. where do you get yours?
>
Proprietary NVidia. Still, why is fence.h suddenly not there?

     mark

> -----Original Message-----
> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of m.roth at
5-
> cent.us
> Sent: Thursday, October 05, 2017 10:58 AM
> To: CentOS mailing list <centos at centos.org>
> Subject: Re: [CentOS] Missing file in current kernel-devel package
> 
> Fred Smith wrote:
> > On Thu, Oct 05, 2017 at 09:56:57AM -0400, m.roth at 5-cent.us wrote:
> >> Ok, folks,
> >>
> >>    I've identified what my problem is, trying to install the
NVidia
> >> proprietary drivers: in kernel-devel-3.10.0-514.26.2.el7.x86_64,
there
> >> is a file
> >> /usr/src/kernels/3.10.0-514.26.2.el7.x86_64/include/linux/fence.h
> >>
> >>    It does not exist in the kernel-devel-3.10.0-693.2.2.el7.x86_64
> >> package. Is this something that got missed, or did HR drop it,
or....?
> >>
> > I'm running that kernel with Nvidia 384.90, but I get the nvidia
> > driver from elrepo. where do you get yours?
> >
> Proprietary NVidia. Still, why is fence.h suddenly not there?
While I'm running the Plus kernel, it has the same files. What I'm
seeing here is that fence.h has been renamed in the 693 kernel to dma-fence.h:

# locate fence.h

/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/fence.h
/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h
/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/trace/events/fence.h
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/dma-fence.h
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/trace/events/dma_fence.h

Looks like upstream renamed it for some reason.

--
Experience varies directly with equipment ruined.

Albert McCann
albert.mccann at outlook.com

Albert McCann wrote:
>> -----Original Message-----
>> From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of m.roth
at 5-
>> cent.us
>> Sent: Thursday, October 05, 2017 10:58 AM
>> To: CentOS mailing list <centos at centos.org>
>> Subject: Re: [CentOS] Missing file in current kernel-devel package
>>
>> Fred Smith wrote:
>> > On Thu, Oct 05, 2017 at 09:56:57AM -0400, m.roth at 5-cent.us
wrote:
>> >> Ok, folks,
>> >>
>> >>    I've identified what my problem is, trying to install
the NVidia
>> >> proprietary drivers: in
kernel-devel-3.10.0-514.26.2.el7.x86_64,
>> there
>> >> is a file
>> >>
/usr/src/kernels/3.10.0-514.26.2.el7.x86_64/include/linux/fence.h
>> >>
>> >>    It does not exist in the
kernel-devel-3.10.0-693.2.2.el7.x86_64
>> >> package. Is this something that got missed, or did HR drop it,
>> or....?
>> >>
>> > I'm running that kernel with Nvidia 384.90, but I get the
nvidia
>> > driver from elrepo. where do you get yours?
>> >
>> Proprietary NVidia. Still, why is fence.h suddenly not there?
>
> While I'm running the Plus kernel, it has the same files. What I'm
seeing
> here is that fence.h has been renamed in the 693 kernel to dma-fence.h:
>
> # locate fence.h
>
>
/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/fence.h
>
/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h
>
/usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/trace/events/fence.h
>
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/dma-fence.h
>
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h
>
/usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/trace/events/dma_fence.h
>
> Looks like upstream renamed it for some reason.
Not good - I did a diff of fence.h and dma_fence.h, it *appears* to be the
same structures, but all with different names. That's not going to
compile.

Sorry, but I really don't believe it is good, much less best practice to
do something like removing a kernel include file within one release. If
they'd made it go a away for 7.0, I would deal, but to suddenly drop it,
bad.

    mark

On Thu, Oct 05, 2017 at 10:58:18AM -0400, m.roth at 5-cent.us
wrote:
>
> Fred Smith wrote:
> > On Thu, Oct 05, 2017 at 09:56:57AM -0400, m.roth at 5-cent.us wrote:
> >> Ok, folks,
> >>
> >>    I've identified what my problem is, trying to install the
NVidia
> >> proprietary drivers: in kernel-devel-3.10.0-514.26.2.el7.x86_64,
there
> >> is a file
> >> /usr/src/kernels/3.10.0-514.26.2.el7.x86_64/include/linux/fence.h
> >>
> >>    It does not exist in the kernel-devel-3.10.0-693.2.2.el7.x86_64
> >> package. Is this something that got missed, or did HR drop it,
or....?
> >>
> > I'm running that kernel with Nvidia 384.90, but I get the nvidia
> > driver from elrepo. where do you get yours?
> >
> Proprietary NVidia. Still, why is fence.h suddenly not there?
Are you trying to build an older NVidia binary?  Newer versions of the
code should be updated to support the fact that the DRM kernel code
removed include/linux/fence.h (back in 2016).  Looks like the 7.4
kernels brought in newer video driver code, which is why you're seeing
it gone.

-- 
Jonathan Billings <billings at negate.org>