4.2-rc4 kernel warnings on HSW laptop

4.2-rc4 kernel warnings on HSW laptop

[Takashi Iwai]

Hi,

I noticed that a HSW laptop gets a few new warnings since 4.2-rc
kernels.  One error messages pops at each boot time:

 Console: switching to colour dummy device 80x25
 [drm] Replacing VGA console driver
 [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 [drm] Driver supports precise vblank timestamp query.
 vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
 [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!


Then a warning when I start powertop:

 WARNING: CPU: 1 PID: 1674 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x232/0x2b0 [drm]()
 CPU: 1 PID: 1674 Comm: powertop Tainted: G        W       4.3.0-rc4-test+ #93
 Hardware name: Hewlett-Packard HP ProBook 430 G1/1946, BIOS L73 Ver. 08.05 2013/03/15
  ffffffffa005b289 ffff880059173ca8 ffffffff81346fa9 0000000000000000
  ffff880059173ce0 ffffffff81063232 ffff8800372bc028 ffff8800373f3740
  ffff8800372bc000 ffff880062ad37c0 0000000000000001 ffff880059173cf0
 Call Trace:
  [<ffffffff81346fa9>] dump_stack+0x4b/0x72
  [<ffffffff81063232>] warn_slowpath_common+0x82/0xc0
  [<ffffffff8106332a>] warn_slowpath_null+0x1a/0x20
  [<ffffffffa0047a12>] drm_atomic_get_property+0x232/0x2b0 [drm]
  [<ffffffffa00356dc>] drm_object_property_get_value+0x6c/0x70 [drm]
  [<ffffffffa003330f>] dpms_show+0x2f/0x70 [drm]
  [<ffffffff8145f090>] dev_attr_show+0x20/0x50
  [<ffffffff8124b48c>] sysfs_kf_seq_show+0xbc/0x130
  [<ffffffff81249d73>] kernfs_seq_show+0x23/0x30
  [<ffffffff811f3d8a>] seq_read+0xca/0x360
  [<ffffffff8124a7da>] kernfs_fop_read+0x10a/0x160
  [<ffffffff811d0888>] __vfs_read+0x28/0xd0
  [<ffffffff812cbe80>] ? security_file_permission+0xa0/0xc0
  [<ffffffff811d102f>] ? rw_verify_area+0x4f/0xe0
  [<ffffffff811d1143>] vfs_read+0x83/0x130
  [<ffffffff811d1df6>] SyS_read+0x46/0xa0
  [<ffffffff81001b40>] ? syscall_return_slowpath+0x50/0x130
  [<ffffffff81659636>] entry_SYSCALL_64_fastpath+0x16/0x75


Both don't look like serious issues, but not sexy to see at each time.


thanks,

Takashi
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Re: 4.2-rc4 kernel warnings on HSW laptop [regression]

[Daniel Vetter]

Another pile of regressions for Jairo to track ...

On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
> Hi,
> 
> I noticed that a HSW laptop gets a few new warnings since 4.2-rc
> kernels.  One error messages pops at each boot time:
> 
>  Console: switching to colour dummy device 80x25
>  [drm] Replacing VGA console driver
>  [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>  [drm] Driver supports precise vblank timestamp query.
>  vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
>  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!

There's patches for this one already, but I accidentally applied them for
-next, not -fixes. They should land for -rc6.

> Then a warning when I start powertop:
> 
>  WARNING: CPU: 1 PID: 1674 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x232/0x2b0 [drm]()
>  CPU: 1 PID: 1674 Comm: powertop Tainted: G        W       4.3.0-rc4-test+ #93
>  Hardware name: Hewlett-Packard HP ProBook 430 G1/1946, BIOS L73 Ver. 08.05 2013/03/15
>   ffffffffa005b289 ffff880059173ca8 ffffffff81346fa9 0000000000000000
>   ffff880059173ce0 ffffffff81063232 ffff8800372bc028 ffff8800373f3740
>   ffff8800372bc000 ffff880062ad37c0 0000000000000001 ffff880059173cf0
>  Call Trace:
>   [<ffffffff81346fa9>] dump_stack+0x4b/0x72
>   [<ffffffff81063232>] warn_slowpath_common+0x82/0xc0
>   [<ffffffff8106332a>] warn_slowpath_null+0x1a/0x20
>   [<ffffffffa0047a12>] drm_atomic_get_property+0x232/0x2b0 [drm]
>   [<ffffffffa00356dc>] drm_object_property_get_value+0x6c/0x70 [drm]
>   [<ffffffffa003330f>] dpms_show+0x2f/0x70 [drm]
>   [<ffffffff8145f090>] dev_attr_show+0x20/0x50
>   [<ffffffff8124b48c>] sysfs_kf_seq_show+0xbc/0x130
>   [<ffffffff81249d73>] kernfs_seq_show+0x23/0x30
>   [<ffffffff811f3d8a>] seq_read+0xca/0x360
>   [<ffffffff8124a7da>] kernfs_fop_read+0x10a/0x160
>   [<ffffffff811d0888>] __vfs_read+0x28/0xd0
>   [<ffffffff812cbe80>] ? security_file_permission+0xa0/0xc0
>   [<ffffffff811d102f>] ? rw_verify_area+0x4f/0xe0
>   [<ffffffff811d1143>] vfs_read+0x83/0x130
>   [<ffffffff811d1df6>] SyS_read+0x46/0xa0
>   [<ffffffff81001b40>] ? syscall_return_slowpath+0x50/0x130
>   [<ffffffff81659636>] entry_SYSCALL_64_fastpath+0x16/0x75
> 
> 
> Both don't look like serious issues, but not sexy to see at each time.

This should be fixed with

commit 621bd0f6982badd6483acb191eb7b6226a578328
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Sep 29 09:56:53 2015 +0200

    drm: Fix locking for sysfs dpms file

If not please scream.

Thanks, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: 4.2-rc4 kernel warnings on HSW laptop [regression]

[Takashi Iwai]

On Mon, 12 Oct 2015 09:04:20 +0200,
Daniel Vetter wrote:
> 
> Another pile of regressions for Jairo to track ...
> 
> On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
> > Hi,
> > 
> > I noticed that a HSW laptop gets a few new warnings since 4.2-rc
> > kernels.  One error messages pops at each boot time:
> > 
> >  Console: switching to colour dummy device 80x25
> >  [drm] Replacing VGA console driver
> >  [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> >  [drm] Driver supports precise vblank timestamp query.
> >  vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> >  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!
> 
> There's patches for this one already, but I accidentally applied them for
> -next, not -fixes. They should land for -rc6.

Could you point commit ids?


> > Then a warning when I start powertop:
> > 
> >  WARNING: CPU: 1 PID: 1674 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x232/0x2b0 [drm]()
> >  CPU: 1 PID: 1674 Comm: powertop Tainted: G        W       4.3.0-rc4-test+ #93
> >  Hardware name: Hewlett-Packard HP ProBook 430 G1/1946, BIOS L73 Ver. 08.05 2013/03/15
> >   ffffffffa005b289 ffff880059173ca8 ffffffff81346fa9 0000000000000000
> >   ffff880059173ce0 ffffffff81063232 ffff8800372bc028 ffff8800373f3740
> >   ffff8800372bc000 ffff880062ad37c0 0000000000000001 ffff880059173cf0
> >  Call Trace:
> >   [<ffffffff81346fa9>] dump_stack+0x4b/0x72
> >   [<ffffffff81063232>] warn_slowpath_common+0x82/0xc0
> >   [<ffffffff8106332a>] warn_slowpath_null+0x1a/0x20
> >   [<ffffffffa0047a12>] drm_atomic_get_property+0x232/0x2b0 [drm]
> >   [<ffffffffa00356dc>] drm_object_property_get_value+0x6c/0x70 [drm]
> >   [<ffffffffa003330f>] dpms_show+0x2f/0x70 [drm]
> >   [<ffffffff8145f090>] dev_attr_show+0x20/0x50
> >   [<ffffffff8124b48c>] sysfs_kf_seq_show+0xbc/0x130
> >   [<ffffffff81249d73>] kernfs_seq_show+0x23/0x30
> >   [<ffffffff811f3d8a>] seq_read+0xca/0x360
> >   [<ffffffff8124a7da>] kernfs_fop_read+0x10a/0x160
> >   [<ffffffff811d0888>] __vfs_read+0x28/0xd0
> >   [<ffffffff812cbe80>] ? security_file_permission+0xa0/0xc0
> >   [<ffffffff811d102f>] ? rw_verify_area+0x4f/0xe0
> >   [<ffffffff811d1143>] vfs_read+0x83/0x130
> >   [<ffffffff811d1df6>] SyS_read+0x46/0xa0
> >   [<ffffffff81001b40>] ? syscall_return_slowpath+0x50/0x130
> >   [<ffffffff81659636>] entry_SYSCALL_64_fastpath+0x16/0x75
> > 
> > 
> > Both don't look like serious issues, but not sexy to see at each time.
> 
> This should be fixed with
> 
> commit 621bd0f6982badd6483acb191eb7b6226a578328
> Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> Date:   Tue Sep 29 09:56:53 2015 +0200
> 
>     drm: Fix locking for sysfs dpms file
> 
> If not please scream.

OK, I'll give a shot.


thanks,

Takashi
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Re: 4.2-rc4 kernel warnings on HSW laptop [regression]

[Takashi Iwai]

On Mon, 12 Oct 2015 14:29:19 +0200,
Takashi Iwai wrote:
> 
> > > Then a warning when I start powertop:
> > > 
> > >  WARNING: CPU: 1 PID: 1674 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x232/0x2b0 [drm]()
> > >  CPU: 1 PID: 1674 Comm: powertop Tainted: G        W       4.3.0-rc4-test+ #93
> > >  Hardware name: Hewlett-Packard HP ProBook 430 G1/1946, BIOS L73 Ver. 08.05 2013/03/15
> > >   ffffffffa005b289 ffff880059173ca8 ffffffff81346fa9 0000000000000000
> > >   ffff880059173ce0 ffffffff81063232 ffff8800372bc028 ffff8800373f3740
> > >   ffff8800372bc000 ffff880062ad37c0 0000000000000001 ffff880059173cf0
> > >  Call Trace:
> > >   [<ffffffff81346fa9>] dump_stack+0x4b/0x72
> > >   [<ffffffff81063232>] warn_slowpath_common+0x82/0xc0
> > >   [<ffffffff8106332a>] warn_slowpath_null+0x1a/0x20
> > >   [<ffffffffa0047a12>] drm_atomic_get_property+0x232/0x2b0 [drm]
> > >   [<ffffffffa00356dc>] drm_object_property_get_value+0x6c/0x70 [drm]
> > >   [<ffffffffa003330f>] dpms_show+0x2f/0x70 [drm]
> > >   [<ffffffff8145f090>] dev_attr_show+0x20/0x50
> > >   [<ffffffff8124b48c>] sysfs_kf_seq_show+0xbc/0x130
> > >   [<ffffffff81249d73>] kernfs_seq_show+0x23/0x30
> > >   [<ffffffff811f3d8a>] seq_read+0xca/0x360
> > >   [<ffffffff8124a7da>] kernfs_fop_read+0x10a/0x160
> > >   [<ffffffff811d0888>] __vfs_read+0x28/0xd0
> > >   [<ffffffff812cbe80>] ? security_file_permission+0xa0/0xc0
> > >   [<ffffffff811d102f>] ? rw_verify_area+0x4f/0xe0
> > >   [<ffffffff811d1143>] vfs_read+0x83/0x130
> > >   [<ffffffff811d1df6>] SyS_read+0x46/0xa0
> > >   [<ffffffff81001b40>] ? syscall_return_slowpath+0x50/0x130
> > >   [<ffffffff81659636>] entry_SYSCALL_64_fastpath+0x16/0x75
> > > 
> > > 
> > > Both don't look like serious issues, but not sexy to see at each time.
> > 
> > This should be fixed with
> > 
> > commit 621bd0f6982badd6483acb191eb7b6226a578328
> > Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Date:   Tue Sep 29 09:56:53 2015 +0200
> > 
> >     drm: Fix locking for sysfs dpms file
> > 
> > If not please scream.
> 
> OK, I'll give a shot.

This one was confirmed to work.  Feel free to my tested-by tag if you
can still add.
  Tested-by: Takashi Iwai <tiwai@suse.de>


thanks,

Takashi
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Re: [Intel-gfx] 4.2-rc4 kernel warnings on HSW laptop [regression]

[Daniel Vetter]

On Mon, Oct 12, 2015 at 02:29:19PM +0200, Takashi Iwai wrote:
> On Mon, 12 Oct 2015 09:04:20 +0200,
> Daniel Vetter wrote:
> > 
> > Another pile of regressions for Jairo to track ...
> > 
> > On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
> > > Hi,
> > > 
> > > I noticed that a HSW laptop gets a few new warnings since 4.2-rc
> > > kernels.  One error messages pops at each boot time:
> > > 
> > >  Console: switching to colour dummy device 80x25
> > >  [drm] Replacing VGA console driver
> > >  [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> > >  [drm] Driver supports precise vblank timestamp query.
> > >  vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> > >  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!
> > 
> > There's patches for this one already, but I accidentally applied them for
> > -next, not -fixes. They should land for -rc6.
> 
> Could you point commit ids?

It was wishful thinking on my side, mixed them up with other patches. I
think this one's still open :(
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: 4.2-rc4 kernel warnings on HSW laptop [regression]

[Ville Syrjälä]

On Tue, Oct 13, 2015 at 10:24:58AM +0200, Daniel Vetter wrote:
> On Mon, Oct 12, 2015 at 02:29:19PM +0200, Takashi Iwai wrote:
> > On Mon, 12 Oct 2015 09:04:20 +0200,
> > Daniel Vetter wrote:
> > > 
> > > Another pile of regressions for Jairo to track ...
> > > 
> > > On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
> > > > Hi,
> > > > 
> > > > I noticed that a HSW laptop gets a few new warnings since 4.2-rc
> > > > kernels.  One error messages pops at each boot time:
> > > > 
> > > >  Console: switching to colour dummy device 80x25
> > > >  [drm] Replacing VGA console driver
> > > >  [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> > > >  [drm] Driver supports precise vblank timestamp query.
> > > >  vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
> > > >  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!
> > > 
> > > There's patches for this one already, but I accidentally applied them for
> > > -next, not -fixes. They should land for -rc6.
> > 
> > Could you point commit ids?
> 
> It was wishful thinking on my side, mixed them up with other patches. I
> think this one's still open :(

7f4c628 drm/i915: Assign hwmode after encoder state readout
0f64614 drm/i915: Fix clock readout when pipes are enabled w/o ports

not enough?

-- 
Ville Syrjälä
Intel OTC
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Re: [Intel-gfx] 4.2-rc4 kernel warnings on HSW laptop [regression]

[Jani Nikula]

On Tue, 13 Oct 2015, Ville Syrjälä <ville.syrjala@linux.intel.com> wrote:
> On Tue, Oct 13, 2015 at 10:24:58AM +0200, Daniel Vetter wrote:
>> On Mon, Oct 12, 2015 at 02:29:19PM +0200, Takashi Iwai wrote:
>> > On Mon, 12 Oct 2015 09:04:20 +0200,
>> > Daniel Vetter wrote:
>> > > 
>> > > Another pile of regressions for Jairo to track ...
>> > > 
>> > > On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
>> > > > Hi,
>> > > > 
>> > > > I noticed that a HSW laptop gets a few new warnings since 4.2-rc
>> > > > kernels.  One error messages pops at each boot time:
>> > > > 
>> > > >  Console: switching to colour dummy device 80x25
>> > > >  [drm] Replacing VGA console driver
>> > > >  [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
>> > > >  [drm] Driver supports precise vblank timestamp query.
>> > > >  vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
>> > > >  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!
>> > > 
>> > > There's patches for this one already, but I accidentally applied them for
>> > > -next, not -fixes. They should land for -rc6.
>> > 
>> > Could you point commit ids?
>> 
>> It was wishful thinking on my side, mixed them up with other patches. I
>> think this one's still open :(
>
> 7f4c628 drm/i915: Assign hwmode after encoder state readout
> 0f64614 drm/i915: Fix clock readout when pipes are enabled w/o ports
>
> not enough?

The relevant bug is [1], everyone please let's track this there.

BR,
Jani.


[1] https://bugs.freedesktop.org/show_bug.cgi?id=91428

>
> -- 
> Ville Syrjälä
> Intel OTC
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center
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Re: 4.2-rc4 kernel warnings on HSW laptop [regression]

[Miramontes Caton, Jairo Daniel]

Created the following bug --> https://bugs.freedesktop.org/show_bug.cgi?id=92451  to follow up this regression

Regards

-----Original Message-----
From: Daniel Vetter [mailto:daniel.vetter@ffwll.ch] On Behalf Of Daniel Vetter
Sent: Monday, October 12, 2015 2:04 AM
To: Takashi Iwai
Cc: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; Miramontes Caton, Jairo Daniel
Subject: Re: [Intel-gfx] 4.2-rc4 kernel warnings on HSW laptop [regression]

Another pile of regressions for Jairo to track ...

On Sat, Oct 10, 2015 at 11:46:29AM +0200, Takashi Iwai wrote:
> Hi,
> 
> I noticed that a HSW laptop gets a few new warnings since 4.2-rc 
> kernels.  One error messages pops at each boot time:
> 
>  Console: switching to colour dummy device 80x25  [drm] Replacing VGA 
> console driver  [drm] Supports vblank timestamp caching Rev 2 
> (21.10.2013).
>  [drm] Driver supports precise vblank timestamp query.
>  vgaarb: device changed decodes: 
> PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
>  [drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 21: Can't calculate constants, dotclock = 0!

There's patches for this one already, but I accidentally applied them for -next, not -fixes. They should land for -rc6.

> Then a warning when I start powertop:
> 
>  WARNING: CPU: 1 PID: 1674 at drivers/gpu/drm/drm_atomic.c:889 drm_atomic_get_property+0x232/0x2b0 [drm]()
>  CPU: 1 PID: 1674 Comm: powertop Tainted: G        W       4.3.0-rc4-test+ #93
>  Hardware name: Hewlett-Packard HP ProBook 430 G1/1946, BIOS L73 Ver. 08.05 2013/03/15
>   ffffffffa005b289 ffff880059173ca8 ffffffff81346fa9 0000000000000000
>   ffff880059173ce0 ffffffff81063232 ffff8800372bc028 ffff8800373f3740
>   ffff8800372bc000 ffff880062ad37c0 0000000000000001 ffff880059173cf0  
> Call Trace:
>   [<ffffffff81346fa9>] dump_stack+0x4b/0x72
>   [<ffffffff81063232>] warn_slowpath_common+0x82/0xc0
>   [<ffffffff8106332a>] warn_slowpath_null+0x1a/0x20
>   [<ffffffffa0047a12>] drm_atomic_get_property+0x232/0x2b0 [drm]
>   [<ffffffffa00356dc>] drm_object_property_get_value+0x6c/0x70 [drm]
>   [<ffffffffa003330f>] dpms_show+0x2f/0x70 [drm]
>   [<ffffffff8145f090>] dev_attr_show+0x20/0x50
>   [<ffffffff8124b48c>] sysfs_kf_seq_show+0xbc/0x130
>   [<ffffffff81249d73>] kernfs_seq_show+0x23/0x30
>   [<ffffffff811f3d8a>] seq_read+0xca/0x360
>   [<ffffffff8124a7da>] kernfs_fop_read+0x10a/0x160
>   [<ffffffff811d0888>] __vfs_read+0x28/0xd0
>   [<ffffffff812cbe80>] ? security_file_permission+0xa0/0xc0
>   [<ffffffff811d102f>] ? rw_verify_area+0x4f/0xe0
>   [<ffffffff811d1143>] vfs_read+0x83/0x130
>   [<ffffffff811d1df6>] SyS_read+0x46/0xa0
>   [<ffffffff81001b40>] ? syscall_return_slowpath+0x50/0x130
>   [<ffffffff81659636>] entry_SYSCALL_64_fastpath+0x16/0x75
> 
> 
> Both don't look like serious issues, but not sexy to see at each time.

This should be fixed with

commit 621bd0f6982badd6483acb191eb7b6226a578328
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Sep 29 09:56:53 2015 +0200

    drm: Fix locking for sysfs dpms file

If not please scream.

Thanks, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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