https://bugs.freedesktop.org/show_bug.cgi?id=103467

            Bug ID: 103467
           Summary: [NVC0/GF108] fifo: read fault at cd90f4d000 engine 07
                    [PFIFO] client 07 [BAR_READ] reason 00
                    [PT_NOT_PRESENT] on channel 1 [003fe11000 DRM]
           Product: xorg
           Version: 7.7 (2012.06)
          Hardware: PowerPC
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: erhard_f-cl+VPiYnx/1AfugRpC6u6w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 135065
  --> https://bugs.freedesktop.org/attachment.cgi?id=135065&action=edit
dmesg output

In my PowerMac G5 11,2 I am running a Geforce 6600 MAC Edition (which works),
and added a GeForce GT 430 as a 2nd card. It seems this card does not get
initialized properly:

[...]
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: PBDMA0: 00004000 [] ch
1 [003fe11000 DRM] subc 0 mthd 0000 data 44dc3569
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: PBDMA0: 00204000
[ILLEGAL_MTHD] ch 1 [003fe11000 DRM] subc 0 mthd 0004 data 39e65d54
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: PBDMA0: 00204000
[ILLEGAL_MTHD] ch 1 [003fe11000 DRM] subc 0 mthd 000c data 2bd98280
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: PBDMA0: 00004000 [] ch
1 [003fe11000 DRM] subc 0 mthd 0018 data e384a768
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: PBDMA0: 00004000 [] ch
1 [003fe11000 DRM] subc 0 mthd 001c data 8e86bf68
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: read fault at
cd90f4d000 engine 07 [PFIFO] client 07 [BAR_READ] reason 00 [PT_NOT_PRESENT] on
channel 1 [003fe11000 DRM]
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: fifo: fifo engine fault on
channel 1, recovering...
Okt 26 15:46:33 T801 kernel: nouveau 0001:06:00.0: DRM: channel 1 killed!

# lspci -vv -s 0001:06:00.0
0001:06:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT
430] (rev a1) (prog-if 00 [VGA controller])
        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, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 65
        Region 0: Memory at 81000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at 88000000 (64-bit, prefetchable) [size=128M]
        Region 3: Memory at 82000000 (64-bit, prefetchable) [size=32M]
        Region 5: I/O ports at 0000 [size=128]
        Expansion ROM at 80180000 [disabled] [size=512K]
        Capabilities: [60] Power Management version 3
                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: 0000000000000000  Data: 0000
        Capabilities: [78] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s
unlimited, L1 <64us
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
SlotPowerLimit 0.000W
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
                        RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq- AuxPwr-
TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit
Latency L0s <1us, L1 <4us
                        ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
                LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-,
OBFF Not Supported
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-,
OBFF Disabled
                LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range,
EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB,
EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-,
LinkEqualizationRequest-
        Capabilities: [b4] Vendor Specific Information: Len=14 <?>
        Kernel driver in use: nouveau
        Kernel modules: nouveau

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