Nouveau - Dec 2010 - [Bug 32494] New: [NV46] GPU lockup, switching to software fbcon at startup

https://bugs.freedesktop.org/show_bug.cgi?id=32494

           Summary: [NV46] GPU lockup, switching to software fbcon at
                    startup
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: patmandin at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=41232)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41232)
kernel log

Having switched to a 7300 GS card to replace my NV30, it was a bit unpleasant
to see the NV46 not working with nouveau.

"GPU lockup - switching to software fbcon" happens at startup time,
long before
X is started.

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--- Comment #1 from Patrice Mandin <patmandin at gmail.com> 2010-12-18
12:03:32 PST ---
It works with "nouveau.noaccel=1" as kernel parameter

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #41232|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #2 from Patrice Mandin <patmandin at gmail.com> 2010-12-20
12:03:59 PST ---
Uploaded mmio trace to mmio.dumps at gmail.com account, of loading the blob and
then starting X.

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--- Comment #3 from Francesco Marella <francesco.marella at gmail.com>
2010-12-27 07:27:01 PST ---
Created an attachment (id=41474)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41474)
lockup nv46

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--- Comment #4 from Francesco Marella <francesco.marella at gmail.com>
2010-12-27 07:28:29 PST ---
Same here. I see the following message in kernel log:

[drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 31 Get 0x19851600 Put
0x0cc4a444 State 0xd0840105 Push 0x00000000
[drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00010000 - Ch 31

-- fm (fmarl on irc)

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--- Comment #5 from Patrice Mandin <patmandin at gmail.com> 2010-12-27
10:04:18 PST ---
There is another bug that may look like yours:
https://bugs.freedesktop.org/show_bug.cgi?id=23445

I opened this one because I thought it was different enough, but they may have
the same cause.

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--- Comment #6 from Patrice Mandin <patmandin at gmail.com> 2011-01-14
04:45:25 PST ---
Created an attachment (id=42021)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=42021)
Kernel log, from drm-nouveau-staging branch

With git repo from drm-nouveau-staging branch, I now get PFIFO_CACHE_ERROR
which was not the case with master.

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Patrice Mandin <patmandin at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #42021|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #7 from Alexander Koryushkin <madcored at gmail.com>
2011-04-08 05:29:33 PDT ---
Created an attachment (id=45417)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=45417)
Kernel log

0000:00:10.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 440
Go 64M] (rev a3)

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EoD <EoD at xmw.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |EoD at xmw.de

--- Comment #8 from EoD <EoD at xmw.de> 2011-04-24 11:58:26 PDT ---
This sounds very much like Bug 35374 . Can you try it with the current
2.6.39-rc4 kernel?

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--- Comment #9 from Patrice Mandin <patmandin at gmail.com> 2011-05-25
12:59:42 PDT ---
Created an attachment (id=47161)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=47161)
2.6.39 kernel log on nv15

Just tested 2.6.39 (official, linus release) on my old box that has an nv15. It
also triggers some PFIFO_DMA_PUSHER errors.

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--- Comment #10 from Patrice Mandin <patmandin at gmail.com> 2011-07-30
02:11:57 PDT ---
Tested again my NV46 with current nouveau git (3.0.0-rc6), and still get
'GPU
lockup, switching to software fbcon at startup'. The same thing happens with
my
NVA5.

With both cards, I have some crash when X is started, and garbage is displayed
on screen. I'm starting to think my problems are not related to the cards
per
se, but maybe by wrong/faulty PCI-E management, as my motherboard has both an
AGP and PCI-E connector.

I'll try to grab some kernel log through serial port.

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Patrice Mandin <patmandin at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #11 from Patrice Mandin <patmandin at gmail.com> 2011-12-06
11:56:01 PST ---


*** This bug has been marked as a duplicate of bug 39988 ***

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