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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Nouveau does DMA to/from unexpected address"
href="https://bugs.freedesktop.org/show_bug.cgi?id=66696">66696</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Nouveau does DMA to/from unexpected address
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>xorg-team@lists.x.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>major
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stijn+bugs@linux-ipv6.be
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Driver/nouveau
</td>
</tr>
<tr>
<th>Product</th>
<td>xorg
</td>
</tr></table>
<p>
<div>
<pre>It appears that on my GeForce 7600 GS (G73), nouveau is doing DMA to/from
unexpected addresses. This gives a lot of warnings, and eventually a system
freeze. This is similar to <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Nouveau does DMA to/from unexpected address"
href="show_bug.cgi?id=27063">https://bugs.freedesktop.org/show_bug.cgi?id=27063</a> /
<a href="https://bugzilla.redhat.com/show_bug.cgi?id=561267">https://bugzilla.redhat.com/show_bug.cgi?id=561267</a>. This was fixed for nv50 in
<a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4eb3033c72099fab3536ed8ac54a5dc99f0832d7">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4eb3033c72099fab3536ed8ac54a5dc99f0832d7</a>
but with the G73 I am seeing this problem in a 3.10 kernel.
[ 1.499379] [drm] Initialized drm 1.1.0 20060810
[ 1.504059] MXM: GUID detected in BIOS
[ 1.508111] nouveau [ DEVICE][0000:01:00.0] BOOT0 : 0x04b200a2
[ 1.514207] nouveau [ DEVICE][0000:01:00.0] Chipset: G73 (NV4B)
[ 1.520301] nouveau [ DEVICE][0000:01:00.0] Family : NV40
[ 1.527097] nouveau [ VBIOS][0000:01:00.0] checking PRAMIN for image...
[ 1.575254] nouveau [ VBIOS][0000:01:00.0] ... appears to be valid
[ 1.581696] nouveau [ VBIOS][0000:01:00.0] using image from PRAMIN
[ 1.588216] nouveau [ VBIOS][0000:01:00.0] BIT signature found
[ 1.594305] nouveau [ VBIOS][0000:01:00.0] version 05.73.22.16.02
[ 1.600858] nouveau [ PFB][0000:01:00.0] RAM type: DDR2
[ 1.606516] nouveau [ PFB][0000:01:00.0] RAM size: 256 MiB
[ 1.612436] nouveau [ PFB][0000:01:00.0] ZCOMP: 379904 tags
[ 1.652901] nouveau [ PTHERM][0000:01:00.0] FAN control: toggle
[ 1.658996] nouveau [ PTHERM][0000:01:00.0] fan management: disabled
[ 1.665521] nouveau [ PTHERM][0000:01:00.0] internal sensor: yes
[ 1.691750] [TTM] Zone kernel: Available graphics memory: 16478742 kiB
[ 1.698366] [TTM] Zone dma32: Available graphics memory: 2097152 kiB
[ 1.704892] [TTM] Initializing pool allocator
[ 1.709254] [TTM] Initializing DMA pool allocator
[ 1.713964] mtrr: type mismatch for 80000000,10000000 old: write-back new:
write-combining
[ 1.722226] nouveau [ DRM] VRAM: 251 MiB
[ 1.726584] nouveau [ DRM] GART: 512 MiB
[ 1.730945] nouveau [ DRM] TMDS table version 1.1
[ 1.736082] nouveau W[ DRM] TMDS table script pointers not stubbed
[ 1.742608] nouveau [ DRM] DCB version 3.0
[ 1.747143] nouveau [ DRM] DCB outp 00: 01000300 00000028
[ 1.752974] nouveau [ DRM] DCB outp 01: 03000302 00000000
[ 1.758807] nouveau [ DRM] DCB outp 02: 04011310 00000028
[ 1.764641] nouveau [ DRM] DCB outp 03: 04011312 00c00000
[ 1.770471] nouveau [ DRM] DCB outp 04: 020223f1 0000c080
[ 1.776304] nouveau [ DRM] DCB conn 00: 1030
[ 1.781037] nouveau [ DRM] DCB conn 01: 2130
[ 1.785765] nouveau [ DRM] DCB conn 02: 0210
[ 1.790492] nouveau [ DRM] DCB conn 03: 0211
[ 1.795224] nouveau [ DRM] DCB conn 04: 0213
[ 1.801402] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[ 1.808018] [drm] No driver support for vblank timestamp query.
[ 1.813978] nouveau [ DRM] 0xD1A1: Parsing digital output script table
[ 1.870947] nouveau [ DRM] 0xD1F1: Parsing digital output script table
[ 1.928298] nouveau [ DRM] 1 available performance level(s)
[ 1.934308] nouveau [ DRM] 0: core 400MHz shader 400MHz memory 400MHz
voltage 1050mV fanspeed 100%
[ 1.943694] nouveau [ DRM] c: core 400MHz shader 400MHz memory 405MHz
fanspeed 100%
[ 1.955321] nouveau [ DRM] MM: using M2MF for buffer copies
[ 1.961340] nouveau [ DRM] Setting dpms mode 3 on TV encoder (output 4)
[ 2.060713] nouveau [ DRM] allocated 1920x1200 fb: 0x9000, bo
ffff8808528bf800
[ 2.068437] fbcon: nouveaufb (fb0) is primary device
[ 2.078765] nouveau [ DRM] 0xD1A1: Parsing digital output script table
[ 2.139034] nouveau [ DRM] 0xD1F1: Parsing digital output script table
[ 2.189610] dmar: DRHD: handling fault status reg 2
[ 2.189612] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.189612] DMAR:[fault reason 06] PTE Read access is not set
[ 2.190017] dmar: DRHD: handling fault status reg 102
[ 2.190019] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.190019] DMAR:[fault reason 06] PTE Read access is not set
[ 2.190120] Console: switching to colour frame buffer device 240x75
[ 2.190254] dmar: DRHD: handling fault status reg 202
[ 2.190255] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.190255] DMAR:[fault reason 06] PTE Read access is not set
[ 2.190672] dmar: DRHD: handling fault status reg 302
[ 2.190674] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.190674] DMAR:[fault reason 06] PTE Read access is not set
[ 2.191081] dmar: DRHD: handling fault status reg 402
[ 2.191083] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.191083] DMAR:[fault reason 06] PTE Read access is not set
[ 2.203182] dmar: DRHD: handling fault status reg 502
[ 2.203184] dmar: DMAR:[DMA Read] Request device [01:00.0] fault addr 0
[ 2.203184] DMAR:[fault reason 06] PTE Read access is not set
[ 2.321167] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[ 2.327527] nouveau 0000:01:00.0: registered panic notifier
[ 2.333109] [drm] Initialized nouveau 1.1.1 20120801 for 0000:01:00.0 on
minor 0
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G73 [GeForce 7600
GS] [10de:0392] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. NX7600GS-T2D256EH
[1462:0622]
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 32
Region 0: Memory at 91000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at 80000000 (64-bit, prefetchable) [size=256M]
Region 3: Memory at 90000000 (64-bit, non-prefetchable) [size=16M]
Region 5: I/O ports at e000 [size=128]
Expansion ROM at 92000000 [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: 0000000000000000 Data: 0000
Capabilities: [78] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <256ns,
L1 <4us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
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, Latency
L0 <256ns, L1 <4us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain-
CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x8, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
Capabilities: [128 v1] Power Budgeting <?>
Kernel driver in use: nouveau
Kernel modules: nvidia</pre>
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