[Nouveau] [Bug 87819] [NVAC] EQ overflowing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87819

--- Comment #3 from Etienne URBAH <eurbah at free.fr> ---
In Firefox, I was NOT doing anything in particular.

I am NOT able to compile a Linux kernel, nor compile a custom module and
include it inside a Linux Kernel.

The machine equipped with NVAC is an iMac 9,1 used in production under Ubuntu
with package 'nvidia-331-updates'.
So, I am just able to test from time to time, at night, an upstream Linux
Kernel published as an Ubuntu package at
http://kernel.ubuntu.com/~kernel-ppa/mainline

Concerning the correct quantity of stolen memory to be used as VRAM :
Using the graphical driver coming from Ubuntu package 'nvidia-331-updates' :

The command 'nvidia-settings -q VideoRam -q GPUMemoryInterface' provides :
-  VideoRam           = 262144
-  GPUMemoryInterface = 128

$ sudo lspci -nn -vv -s 03:00
03:00.0 VGA compatible controller [0300]: NVIDIA Corporation C79 [GeForce 9400]
[10de:0867] (rev b1) (prog-if 00 [VGA controller])
    Subsystem: Apple Inc. iMac 9,1 [106b:00ad]
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 46
    Region 0: Memory at d2000000 (32-bit, non-prefetchable) [size=16M]
    Region 1: Memory at c0000000 (64-bit, prefetchable) [size=256M]
    Region 3: Memory at d0000000 (64-bit, prefetchable) [size=32M]
    Region 5: I/O ports at 1000 [size=128]
    [virtual] Expansion ROM at d3000000 [disabled] [size=128K]
    Capabilities: [60] Power Management version 2
        Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
        Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Address: 00000000fee0300c  Data: 4192
    Kernel driver in use: nvidia

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