2.4.0 bug: file /proc/dri 4 times in ls listing

2.4.0 bug: file /proc/dri 4 times in ls listing

[Bobo Rajec]

Hi,

I'm running kernel 2.4.0 on Redhat 7.0. I tried to get direct
rendering running (it failed, but that's another story). Today I
noticed something strange in /proc: dri appears there 4 times.

ls /proc:
...
-r--r--r--    1 root     root            0 Jan 16 08:57 dma
dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
dr-xr-xr-x    2 root     root            0 Jan 16 08:57 driver
...

Chdir /proc/dri/0 works fine:

bobo:/proc/dri/0>ls
bufs  clients  histo  mem  name  queues  vm  vma

No dri modules, everything is linked in (I know I don't need all of
these, but I have lots of memory, so...).

...
CONFIG_AGP=y
CONFIG_AGP_INTEL=y
CONFIG_AGP_I810=y
CONFIG_AGP_VIA=y
CONFIG_AGP_AMD=y
CONFIG_AGP_SIS=y
CONFIG_AGP_ALI=y
CONFIG_DRM=y
CONFIG_DRM_TDFX=y
CONFIG_DRM_GAMMA=y
CONFIG_DRM_R128=y
CONFIG_DRM_I810=y
CONFIG_DRM_MGA=y
...

Regards,
	bobo
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Re: 2.4.0 bug: file /proc/dri 4 times in ls listing

[Tigran Aivazian]

Hi Bobo,

To fix this just link in only the support that corresponds to your
hardware. The design of dri is such that (one could paraphrase) each
driver-specific part includes its own copy of what should be
"driver-independent shared dri_core engine" (e.g. proc handling stuff).

Fixing this requires either a new filesystem type (drifs) or
(simpler!) redesigning dri to separate common things into a separate
dri_core thing shared amongst them.

Regards,
Tigran

On Tue, 16 Jan 2001, Bobo Rajec wrote:

> 
> Hi,
> 
> I'm running kernel 2.4.0 on Redhat 7.0. I tried to get direct
> rendering running (it failed, but that's another story). Today I
> noticed something strange in /proc: dri appears there 4 times.
> 
> ls /proc:
> ...
> -r--r--r--    1 root     root            0 Jan 16 08:57 dma
> dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> dr-xr-xr-x    2 root     root            0 Jan 16 08:57 driver
> ...
> 
> Chdir /proc/dri/0 works fine:
> 
> bobo:/proc/dri/0>ls
> bufs  clients  histo  mem  name  queues  vm  vma
> 
> No dri modules, everything is linked in (I know I don't need all of
> these, but I have lots of memory, so...).
> 
> ...
> CONFIG_AGP=y
> CONFIG_AGP_INTEL=y
> CONFIG_AGP_I810=y
> CONFIG_AGP_VIA=y
> CONFIG_AGP_AMD=y
> CONFIG_AGP_SIS=y
> CONFIG_AGP_ALI=y
> CONFIG_DRM=y
> CONFIG_DRM_TDFX=y
> CONFIG_DRM_GAMMA=y
> CONFIG_DRM_R128=y
> CONFIG_DRM_I810=y
> CONFIG_DRM_MGA=y
> ...
> 
> Regards,
> 	bobo
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> Please read the FAQ at http://www.tux.org/lkml/
> 

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Re: 2.4.0 bug: file /proc/dri 4 times in ls listing

[Tigran Aivazian]

On Tue, 16 Jan 2001, Tigran Aivazian wrote:
> Fixing this requires either a new filesystem type (drifs) or
> (simpler!) redesigning dri to separate common things into a separate
> dri_core thing shared amongst them.

just for completeness -- there is the 3rd option -- one could just fix the
hack which is there (or was there half a year ago when I looked at
it) which is supposed to detect that a file in /proc is already
present. It is just not esthetically pleasant (good to eyes :) so I
omitted this from the options...

> 
> Regards,
> Tigran
> 
> On Tue, 16 Jan 2001, Bobo Rajec wrote:
> 
> > 
> > Hi,
> > 
> > I'm running kernel 2.4.0 on Redhat 7.0. I tried to get direct
> > rendering running (it failed, but that's another story). Today I
> > noticed something strange in /proc: dri appears there 4 times.
> > 
> > ls /proc:
> > ...
> > -r--r--r--    1 root     root            0 Jan 16 08:57 dma
> > dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> > dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> > dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> > dr-xr-xr-x    3 root     root            0 Jan 16 08:57 dri
> > dr-xr-xr-x    2 root     root            0 Jan 16 08:57 driver
> > ...
> > 
> > Chdir /proc/dri/0 works fine:
> > 
> > bobo:/proc/dri/0>ls
> > bufs  clients  histo  mem  name  queues  vm  vma
> > 
> > No dri modules, everything is linked in (I know I don't need all of
> > these, but I have lots of memory, so...).
> > 
> > ...
> > CONFIG_AGP=y
> > CONFIG_AGP_INTEL=y
> > CONFIG_AGP_I810=y
> > CONFIG_AGP_VIA=y
> > CONFIG_AGP_AMD=y
> > CONFIG_AGP_SIS=y
> > CONFIG_AGP_ALI=y
> > CONFIG_DRM=y
> > CONFIG_DRM_TDFX=y
> > CONFIG_DRM_GAMMA=y
> > CONFIG_DRM_R128=y
> > CONFIG_DRM_I810=y
> > CONFIG_DRM_MGA=y
> > ...
> > 
> > Regards,
> > 	bobo
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.kernel.org
> > Please read the FAQ at http://www.tux.org/lkml/
> > 
> 
> 

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