2019-08-16 01:16:16

by Nathaniel Russell

[permalink] [raw]
Subject: Linux Kernel 5.2.8

I would really like help with the kernel error with my uvcvideo driver.


Attachments:
tx (53.21 kB)

2019-08-16 01:55:58

by Randy Dunlap

[permalink] [raw]
Subject: Re: Linux Kernel 5.2.8 (uvc or i915?)

On 8/15/19 6:15 PM, Nathaniel Russell wrote:
> I would really like help with the kernel error with my uvcvideo driver.
>

Hi again.

What makes you think that the problem is related to the uvcvideo driver?
Does some previous kernel version work correctly? If so, what version(s)?


Does this warning message only happen when the uvcvideo driver is being loaded?
Can you suppress loading of the uvcvideo driver to find out?

Most of the problems/errors/warnings that I see are related to the i915 driver:

[ 13.032341] timed out waiting for port C ready: got 0x20, expected 0xe0
[ 13.032872] WARNING: CPU: 1 PID: 239 at drivers/gpu/drm/i915/intel_display.c:1597 vlv_wait_port_ready+0x99/0xe0 [i915]
[ 13.033632] RIP: 0010:vlv_wait_port_ready+0x99/0xe0 [i915]

although there are a few uvcvideo warnings:
[ 13.039305] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was not initialized!
[ 13.039318] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was not initialized!
[ 13.039330] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was not initialized!
[ 13.039339] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not initialized!


Laurent, do you see any uvc issues here? Any ideas/suggestions?


@intel-gfx: any ideas about what is going on here with the i915 driver?



Original message to lkml:
https://lore.kernel.org/lkml/CAONH+Jm-O6=DQ+K2n5pNTNMg2Sq1KcVNFLuweVh6W82OPEFJoQ@mail.gmail.com/T/#u

Previous message for 5.1.21 kernel:
https://lore.kernel.org/lkml/CAONH+JkTFujY9vEyNNuem+9rJ2qBKkf-PbKk9=DBSVEp6kW=yw@mail.gmail.com/


thanks.
--
~Randy

2019-08-16 13:49:47

by Jani Nikula

[permalink] [raw]
Subject: Re: [Intel-gfx] Linux Kernel 5.2.8 (uvc or i915?)

On Thu, 15 Aug 2019, Randy Dunlap <[email protected]> wrote:
> On 8/15/19 6:15 PM, Nathaniel Russell wrote:
>> I would really like help with the kernel error with my uvcvideo driver.
>>
>
> Hi again.
>
> What makes you think that the problem is related to the uvcvideo driver?
> Does some previous kernel version work correctly? If so, what version(s)?
>
>
> Does this warning message only happen when the uvcvideo driver is being loaded?
> Can you suppress loading of the uvcvideo driver to find out?
>
> Most of the problems/errors/warnings that I see are related to the i915 driver:
>
> [ 13.032341] timed out waiting for port C ready: got 0x20, expected 0xe0
> [ 13.032872] WARNING: CPU: 1 PID: 239 at drivers/gpu/drm/i915/intel_display.c:1597 vlv_wait_port_ready+0x99/0xe0 [i915]
> [ 13.033632] RIP: 0010:vlv_wait_port_ready+0x99/0xe0 [i915]
>
> although there are a few uvcvideo warnings:
> [ 13.039305] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was not initialized!
> [ 13.039318] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was not initialized!
> [ 13.039330] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was not initialized!
> [ 13.039339] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not initialized!
>
>
> Laurent, do you see any uvc issues here? Any ideas/suggestions?
>
>
> @intel-gfx: any ideas about what is going on here with the i915 driver?

Please file a bug over at [1], add drm.debug=14 module parameter, attach
dmesg to the bug, all the way from boot to reproducing the issue.


BR,
Jani.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel




>
>
>
> Original message to lkml:
> https://lore.kernel.org/lkml/CAONH+Jm-O6=DQ+K2n5pNTNMg2Sq1KcVNFLuweVh6W82OPEFJoQ@mail.gmail.com/T/#u
>
> Previous message for 5.1.21 kernel:
> https://lore.kernel.org/lkml/CAONH+JkTFujY9vEyNNuem+9rJ2qBKkf-PbKk9=DBSVEp6kW=yw@mail.gmail.com/
>
>
> thanks.

--
Jani Nikula, Intel Open Source Graphics Center

2019-08-16 21:09:52

by Nathaniel Russell

[permalink] [raw]
Subject: Re: [Intel-gfx] Linux Kernel 5.2.8 (uvc or i915?)

Here is the file you requested with the debug information

On 8/16/19, Jani Nikula <[email protected]> wrote:
> On Thu, 15 Aug 2019, Randy Dunlap <[email protected]> wrote:
>> On 8/15/19 6:15 PM, Nathaniel Russell wrote:
>>> I would really like help with the kernel error with my uvcvideo driver.
>>>
>>
>> Hi again.
>>
>> What makes you think that the problem is related to the uvcvideo driver?
>> Does some previous kernel version work correctly? If so, what
>> version(s)?
>>
>>
>> Does this warning message only happen when the uvcvideo driver is being
>> loaded?
>> Can you suppress loading of the uvcvideo driver to find out?
>>
>> Most of the problems/errors/warnings that I see are related to the i915
>> driver:
>>
>> [ 13.032341] timed out waiting for port C ready: got 0x20, expected
>> 0xe0
>> [ 13.032872] WARNING: CPU: 1 PID: 239 at
>> drivers/gpu/drm/i915/intel_display.c:1597 vlv_wait_port_ready+0x99/0xe0
>> [i915]
>> [ 13.033632] RIP: 0010:vlv_wait_port_ready+0x99/0xe0 [i915]
>>
>> although there are a few uvcvideo warnings:
>> [ 13.039305] uvcvideo 1-5:1.0: Entity type for entity Extension 4 was
>> not initialized!
>> [ 13.039318] uvcvideo 1-5:1.0: Entity type for entity Extension 3 was
>> not initialized!
>> [ 13.039330] uvcvideo 1-5:1.0: Entity type for entity Processing 2 was
>> not initialized!
>> [ 13.039339] uvcvideo 1-5:1.0: Entity type for entity Camera 1 was not
>> initialized!
>>
>>
>> Laurent, do you see any uvc issues here? Any ideas/suggestions?
>>
>>
>> @intel-gfx: any ideas about what is going on here with the i915 driver?
>
> Please file a bug over at [1], add drm.debug=14 module parameter, attach
> dmesg to the bug, all the way from boot to reproducing the issue.
>
>
> BR,
> Jani.
>
> [1]
> https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
>
>
>
>
>>
>>
>>
>> Original message to lkml:
>> https://lore.kernel.org/lkml/CAONH+Jm-O6=DQ+K2n5pNTNMg2Sq1KcVNFLuweVh6W82OPEFJoQ@mail.gmail.com/T/#u
>>
>> Previous message for 5.1.21 kernel:
>> https://lore.kernel.org/lkml/CAONH+JkTFujY9vEyNNuem+9rJ2qBKkf-PbKk9=DBSVEp6kW=yw@mail.gmail.com/
>>
>>
>> thanks.
>
> --
> Jani Nikula, Intel Open Source Graphics Center
>


Attachments:
debug (124.92 kB)

2019-08-21 11:49:47

by Jani Nikula

[permalink] [raw]
Subject: Re: [Intel-gfx] Linux Kernel 5.2.8 (uvc or i915?)

On Fri, 16 Aug 2019, Nathaniel Russell <[email protected]> wrote:
> Here is the file you requested with the debug information

Please attach it to the bug you've hopefully created.

BR,
Jani.

--
Jani Nikula, Intel Open Source Graphics Center