Nouveau - Mar 2008 - [Bug 14961] New: NV30: random dma queue hang

http://bugs.freedesktop.org/show_bug.cgi?id=14961

           Summary: NV30: random dma queue hang
           Product: xorg
           Version: 7.3
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: pmandin at caramail.com
         QAContact: xorg-team at lists.x.org


Sometimes I got this in the kernel logs:

[drm] PGRAPH_ERROR - nSource: LIMIT_ZETA, nStatus: PROTECTION_FAULT
[drm] PGRAPH_ERROR - Ch 2/2 Class 0x009f Mthd 0x0308 Data 0x00000007:0x011c0130

I checked every calls in DDX driver that set data to method 0x308 for class
0x9f (NV12_IMAGE_BLIT), and did not find anything that may cause the error. It
happens either at start time (heavy bus usage, to load everything from disk),
when I move a big window (opaque mode), or sometimes more randomly.

I notice some big lags just before it triggers, and X crashes with DMA queue
hang error. It's like the fifo data has been overwritten. Enabling
NOUVEAU_DMA_DEBUG in DDX did not show anything wrong.

Card is 0x10de:0x0309, NV30GL


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http://bugs.freedesktop.org/show_bug.cgi?id=14961





--- Comment #1 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-13
15:20:55 PST ---
Still seeing this?


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--- Comment #2 from Patrice Mandin <patmandin at gmail.com>  2009-01-17
02:45:52 PST ---
It does not happen anymore since I bought a new PC to use the NV30.

Maybe it was simply the old motherboard that could not handle it, but I suppose
the Nvidia blob driver has some checks to avoid this.

I think you can close this bug now, but it may still happen on old boxes.


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Pekka Paalanen <pq at iki.fi> changed:

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




--- Comment #3 from Pekka Paalanen <pq at iki.fi>  2009-11-19 13:42:46 PST
---
You could have closed this as a hardware failure yourself ;-)


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