[Bug 73053] dpm hangs with BTC parts

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=73053

almos  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

--- Comment #46 from almos  ---
(In reply to comment #45)
> (In reply to comment #44)
> > 3.14.12 also panics after a few hours. It seems I have to return to the 3.12
> > series.
> 
> I'm not sure this panic has anything to do with the GPU driver.

Me neither, but it makes testing a bit difficult. Not to mention daily work.

Anyway, I'm closing the bug, because the fix for the hang has been found, and
it's already landed in most of the stable branches. A big thanks to everyone
who contributed.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #45 from Alex Deucher  ---
(In reply to comment #44)
> 3.14.12 also panics after a few hours. It seems I have to return to the 3.12
> series.

I'm not sure this panic has anything to do with the GPU driver.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #44 from almos  ---
3.14.12 also panics after a few hours. It seems I have to return to the 3.12
series.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #43 from Alexandre Demers  ---
(In reply to comment #41)
> (In reply to comment #40)
> > (In reply to comment #38)
> > > The new problem is that I get kernel panic after a few hours if dpm is
> > > enabled. With the good old profile method the system is stable.
> > 
> > Can you get a copy of the panic?  I think it may be related to the page
> > flipping changes in the last couple kernels.  It's not likely dpm would
> > cause a panic.
> 
> It seems I spoke too soon. 3.15.4 panics even without dpm.

So it is a different bug from the current one. Alex Deucher may be able to tell
you if your screeshot confirms his suspicions. However, if everything still
runs fine about dpm with the patch applied, I suggest you close the current bug
and, if needed, you open a new one.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #42 from almos  ---
Created attachment 102669
  --> https://bugs.freedesktop.org/attachment.cgi?id=102669=edit
image of panic.jpg

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--- Comment #41 from almos  ---
(In reply to comment #40)
> (In reply to comment #38)
> > The new problem is that I get kernel panic after a few hours if dpm is
> > enabled. With the good old profile method the system is stable.
> 
> Can you get a copy of the panic?  I think it may be related to the page
> flipping changes in the last couple kernels.  It's not likely dpm would
> cause a panic.

It seems I spoke too soon. 3.15.4 panics even without dpm.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #40 from Alex Deucher  ---
(In reply to comment #38)
> The new problem is that I get kernel panic after a few hours if dpm is
> enabled. With the good old profile method the system is stable.

Can you get a copy of the panic?  I think it may be related to the page
flipping changes in the last couple kernels.  It's not likely dpm would cause a
panic.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #39 from Alexandre Demers  ---
(In reply to comment #38)
> Attachment 102081 [details] fixes the "hard lockup with small vertical blue
> stripes" issue, when applied to 3.15.4, and AFAICS dpm works fine.
> 
> The new problem is that I get kernel panic after a few hours if dpm is
> enabled. With the good old profile method the system is stable.

Could you test with latest kernel 3.16 RC (the patch is already included)? I
have been running kernel 3.16-RC4 with this patch for Cayman and I don't get
any lockups anymore. I've been running my system for a few days (games, movies
and so on) without problem.

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--- Comment #38 from almos  ---
Attachment 102081 fixes the "hard lockup with small vertical blue stripes"
issue, when applied to 3.15.4, and AFAICS dpm works fine.

The new problem is that I get kernel panic after a few hours if dpm is enabled.
With the good old profile method the system is stable.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #37 from Rpnpif  ---
(In reply to comment #36)
> You have an APU.  This bug is specifically about dpm on BTC discrete GPUs. 
> It sounds like you are seeing bug 72921.  Please try the patch on that bug.

You are right and the last patch of bug 72921 fixes my bug issue.
Thank you very much.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #36 from Alex Deucher  ---
(In reply to comment #34)
> Hi,
> Same issue with my system on motherboard MSI A78M-E35 with AMD APU A4-5300.
> But my system reboots some 3 seconds after initramfs is loaded. So no Xorg
> and no logs.
> 

You have an APU.  This bug is specifically about dpm on BTC discrete GPUs.  It
sounds like you are seeing bug 72921.  Please try the patch on that bug.

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--- Comment #35 from Rpnpif  ---
(In reply to comment #34)

I have trying some minutes ago 3.14.12 kernel that have your patches included,
I think. But same issue : the system reboots early in the sequence boot.

Or my bug is different or it is the same and your patches does not fix it. Only
radeon.dpm=0 on the kernel command line fix it.

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[Bug 73053] dpm hangs with BTC parts

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Rpnpif  changed:

   What|Removed |Added

 CC||rpnpif at free.fr

--- Comment #34 from Rpnpif  ---
Hi,
Same issue with my system on motherboard MSI A78M-E35 with AMD APU A4-5300.
But my system reboots some 3 seconds after initramfs is loaded. So no Xorg and
no logs.

00:00.2 IOMMU: Advanced Micro Devices [AMD] Family 15h (Models 10h-1fh) I/O
Memory Management Unit
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 40
Capabilities: [40] Secure device 
Capabilities: [54] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [64] HyperTransport: MSI Mapping Enable+ Fixed+

00:01.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Device
9993 (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 49
Memory at c000 (32-bit, prefetchable) [size=256M]
I/O ports at f000 [size=256]
Memory at feb0 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at  [disabled]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 
Kernel driver in use: radeon

I wrote a bug issue on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=748615
Same issue on linux 3.13 to 3.15.1.
radeon.dpm=0 fix it.

I does not yet try your last patch.

Regards.

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #33 from Stan Trzmiel  ---
Patch applied to 3.15.3 from fedora testing fixed issues with Radeon 7600M (AMD
Turks).
Tested on  glxgears, schorched3d and flightgear.

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--- Comment #32 from Juan Orti Alcaine  ---
(In reply to comment #31)
> Created attachment 102081 [details] [review]
> possible fix
> 
> Does this patch fix the issues?

Great! it works very well, I've been using it for an hour, playing 3D games
with no stability problems. The temperature also is 10-20 ?C lower than before.

This kernel is your branch drm-next-3.16 at commit
4366f3b5f5a971cf348c298716b2cb29aab6ef4f + patch 102081

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[Bug 73053] dpm hangs with BTC parts

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--- Comment #31 from Alex Deucher  ---
Created attachment 102081
  --> https://bugs.freedesktop.org/attachment.cgi?id=102081=edit
possible fix

Does this patch fix the issues?

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--- Comment #30 from Juan Orti Alcaine  ---
(In reply to comment #29)
> (In reply to comment #28)
> > Created attachment 95246 [details] [review] [review]
> > possible fix
> > 
> > Does this patch help?
> 
> I checked out the newest state of your drm-next-3.14 git branch (at
> 78fe9e545), and applied the patch. I still get the vertical stripes and
> complete lockup.


The same here with a Radeon HD 6870. I can start KDE, but it crashes with
vertical white strips over a dark background.

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--- Comment #29 from almos  ---
(In reply to comment #28)
> Created attachment 95246 [details] [review]
> possible fix
> 
> Does this patch help?

I checked out the newest state of your drm-next-3.14 git branch (at 78fe9e545),
and applied the patch. I still get the vertical stripes and complete lockup.

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--- Comment #28 from Alex Deucher  ---
Created attachment 95246
  --> https://bugs.freedesktop.org/attachment.cgi?id=95246=edit
possible fix

Does this patch help?

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--- Comment #27 from almos  ---
(In reply to comment #18)
> Are things any better with my 3.14 branch?
> http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-3.14

I don't know if this helps, but I tried your branch (at 4a8ee429cab), and it
fails different. For some reason it calls itself 3.13-rc4+, and it defaults to
dpm=0, I hope these are not a problem. When I enable dpm, the screen doesn't
turn off when the radeon module is loaded, but as X starts, the screen goes
black with 1px blue vertical lines at every 8th pixel. I tried 3 times, the
same result.

I don't have glamor now, when I'll have some time I'll try with it.

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--- Comment #26 from Alex Deucher  ---
Does using glamor for acceleration help?  Make sure you have an glamor enabled
ddx (xf86-video-ati), and then add:
Option "AccelMethod" "glamor"
to the device section of your xorg config.

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--- Comment #25 from Juan Orti  ---
(In reply to comment #24)
> Does disabling hyperZ help?  E.g., set env var R600_DEBUG=nohyperz in
> /etc/environment or however your distro handles global env vars.

With that variable set the behaviour is the same. I can log in KDE, but crash
in a few minutes.

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--- Comment #24 from Alex Deucher  ---
Does disabling hyperZ help?  E.g., set env var R600_DEBUG=nohyperz in
/etc/environment or however your distro handles global env vars.

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Alex Deucher  changed:

   What|Removed |Added

Summary|HD6850 cannot boot with dpm |dpm hangs with BTC parts

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