radeon: screen garbled after page allocator change, was: Re: [patch v2 3/3] mm: page_alloc: fair zone allocator policy

Christian König christian.koenig at amd.com
Mon Apr 28 00:30:10 PDT 2014


> +	/* We are living in a monstruous world in which you can have the pci
> +	 * root complex behind an hypertransport link which can not address
> +	 * anything above 32bit (well hypertransport specification says 40bits
> +	 * but hardware such as SIS761 only support 32bits).
That looks more like a problem with this specific chipset rather than 
something that needs a general solution like this.

Maybe we should rather add the PCI-ID(s) of the thing to some kind of 
quirks table for now so that the patch isn't so invasive and we can CC 
stable as well?

Just a thought,
Christian.

Am 27.04.2014 21:55, schrieb Jerome Glisse:
> On Sat, Apr 26, 2014 at 11:31:11PM -0400, Jerome Glisse wrote:
>> On Thu, Apr 24, 2014 at 09:37:22AM -0400, Johannes Weiner wrote:
>>> Hi Thomas,
>>>
>>> On Wed, Apr 02, 2014 at 04:26:08PM +0200, Thomas Schwinge wrote:
>>>> Hi!
>>>>
>>>> On Fri,  2 Aug 2013 11:37:26 -0400, Johannes Weiner <hannes at cmpxchg.org> wrote:
>>>>> Each zone that holds userspace pages of one workload must be aged at a
>>>>> speed proportional to the zone size.  [...]
>>>>> Fix this with a very simple round robin allocator.  [...]
>>>> This patch, adding NR_ALLOC_BATCH, eventually landed in mainline as
>>>> commit 81c0a2bb515fd4daae8cab64352877480792b515 (2013-09-11).
>>>>
>>>> I recently upgraded a Debian testing system from a 3.11 kernel to 3.12,
>>>> and it started to exhibit "strange" issues, which I then bisected to this
>>>> patch.  I'm not saying that the patch is faulty, as it seems to be
>>>> working fine for everyone else, so I rather assume that something in a
>>>> (vastly?) different corner of the kernel (or my hardware?) is broken.
>>>> ;-)
>>>>
>>>> The issue is that when X.org/lightdm starts up, there are "garbled"
>>>> section on the screen, for example, rectangular boxes that are just black
>>>> or otherwise "distorted", and/or sets of glyphs (corresponding to a set
>>>> of characters; but not all characters) are displayed as rectangular gray
>>>> or black boxes, and/or icons in a GNOME session are not displayed
>>>> properly, and so on.  (Can take a snapshot if that helps?)  Switching to
>>>> a Linux console, I can use that one fine.  Switching back to X, in the
>>>> majority of all cases, the screen will be completely black, but with the
>>>> mouse cursor still rendered properly (done in hardware, I assume).
>>>>
>>>> Reverting commit 81c0a2bb515fd4daae8cab64352877480792b515, for example on
>>>> top of v3.12, and everything is back to normal.  The problem also
>>>> persists with a v3.14 kernel that I just built.
>>>>
>>>> I will try to figure out what's going on, but will gladly take any
>>>> pointers, or suggestions about how to tackle such a problem.
>>>>
>>>> The hardware is a Fujitsu Siemens Esprimo E5600, mainboard D2264-A1, CPU
>>>> AMD Sempron 3000+.  There is a on-board graphics thingy, but I'm not
>>>> using that; instead I put in a Sapphire Radeon HD 4350 card.
>>> I went over this code change repeatedly but I could not see anything
>>> directly that would explain it.  However, this patch DOES change the
>>> way allocations are placed (while still respecting zone specifiers
>>> like __GFP_DMA etc.) and so it's possible that they unearthed a
>>> corruption, or a wrongly set dma mask in the drivers.
>>>
>>> Ccing the radeon driver guys.  Full quote follows.
>>>
>>>>      $ cat < /proc/cpuinfo
>>>>      processor       : 0
>>>>      vendor_id       : AuthenticAMD
>>>>      cpu family      : 15
>>>>      model           : 47
>>>>      model name      : AMD Sempron(tm) Processor 3000+
>>>>      stepping        : 2
>>>>      cpu MHz         : 1000.000
>>>>      cache size      : 128 KB
>>>>      physical id     : 0
>>>>      siblings        : 1
>>>>      core id         : 0
>>>>      cpu cores       : 1
>>>>      apicid          : 0
>>>>      initial apicid  : 0
>>>>      fpu             : yes
>>>>      fpu_exception   : yes
>>>>      cpuid level     : 1
>>>>      wp              : yes
>>>>      flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow rep_good nopl pni lahf_lm
>>>>      bogomips        : 2000.20
>>>>      TLB size        : 1024 4K pages
>>>>      clflush size    : 64
>>>>      cache_alignment : 64
>>>>      address sizes   : 40 bits physical, 48 bits virtual
>>>>      power management: ts fid vid ttp tm stc
>>>>      $ sudo lspci -nn -k -vv
>>>>      00:00.0 Host bridge [0600]: Silicon Integrated Systems [SiS] 761/M761 Host [1039:0761] (rev 01)
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 Motherboard [1734:1099]
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
>>>>              Latency: 64
>>>>              Region 0: Memory at f0000000 (32-bit, non-prefetchable) [size=32M]
>>>>              Capabilities: [a0] AGP version 3.0
>>>>                      Status: RQ=32 Iso- ArqSz=2 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3+ Rate=x4,x8
>>>>                      Command: RQ=1 ArqSz=0 Cal=0 SBA+ AGP- GART64- 64bit- FW- Rate=<none>
>>>>              Capabilities: [d0] HyperTransport: Slave or Primary Interface
>>>>                      Command: BaseUnitID=0 UnitCnt=17 MastHost- DefDir- DUL-
>>>>                      Link Control 0: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
>>>>                      Link Config 0: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
>>>>                      Link Control 1: CFlE- CST- CFE- <LkFail+ Init- EOC+ TXO+ <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
>>>>                      Link Config 1: MLWI=N/C DwFcIn- MLWO=N/C DwFcOut- LWI=N/C DwFcInEn- LWO=N/C DwFcOutEn-
>>>>                      Revision ID: 1.05
>>>>                      Link Frequency 0: 800MHz
>>>>                      Link Error 0: <Prot- <Ovfl- <EOC- CTLTm-
>>>>                      Link Frequency Capability 0: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz+ 1.2GHz+ 1.4GHz- 1.6GHz- Vend-
>>>>                      Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA+ UIDRD-
>>>>                      Link Frequency 1: 200MHz
>>>>                      Link Error 1: <Prot- <Ovfl- <EOC- CTLTm-
>>>>                      Link Frequency Capability 1: 200MHz- 300MHz- 400MHz- 500MHz- 600MHz- 800MHz- 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
>>>>                      Error Handling: PFlE- OFlE- PFE- OFE- EOCFE- RFE- CRCFE- SERRFE- CF- RE- PNFE- ONFE- EOCNFE- RNFE- CRCNFE- SERRNFE-
>>>>                      Prefetchable memory behind bridge Upper: 00-00
>>>>                      Bus Number: 00
>>>>              Capabilities: [f0] HyperTransport: Interrupt Discovery and Configuration
>>>>              Capabilities: [5c] HyperTransport: Revision ID: 1.05
>>>>              Kernel driver in use: agpgart-amd64
>>>>      
>>>>      00:01.0 PCI bridge [0604]: Silicon Integrated Systems [SiS] PCI-to-PCI bridge [1039:0004] (prog-if 00 [Normal decode])
>>>>              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
>>>>              Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
>>>>              I/O behind bridge: 00002000-00002fff
>>>>              Memory behind bridge: f2100000-f21fffff
>>>>              Prefetchable memory behind bridge: e0000000-efffffff
>>>>              Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
>>>>              BridgeCtl: Parity+ SERR+ NoISA+ VGA+ MAbort- >Reset- FastB2B-
>>>>                      PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>>>>              Capabilities: [d0] Express (v1) Root Port (Slot+), MSI 00
>>>>                      DevCap: MaxPayload 128 bytes, PhantFunc 0
>>>>                              ExtTag+ RBE-
>>>>                      DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>>>                              RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
>>>>                              MaxPayload 128 bytes, MaxReadReq 128 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 <2us
>>>>                              ClockPM- Surprise- LLActRep+ BwNot-
>>>>                      LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>>>                              ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>>                      LnkSta: Speed 2.5GT/s, Width x16, TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
>>>>                      SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
>>>>                              Slot #0, PowerLimit 75.000W; Interlock- NoCompl-
>>>>                      SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
>>>>                              Control: AttnInd Off, PwrInd Off, Power- Interlock-
>>>>                      SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
>>>>                              Changed: MRL- PresDet- LinkState-
>>>>                      RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
>>>>                      RootCap: CRSVisible-
>>>>                      RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>>>>              Capabilities: [bc] HyperTransport: MSI Mapping Enable- Fixed+
>>>>              Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit-
>>>>                      Address: 00000000  Data: 0000
>>>>              Capabilities: [f4] 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-
>>>>              Kernel driver in use: pcieport
>>>>      
>>>>      00:02.0 ISA bridge [0601]: Silicon Integrated Systems [SiS] SiS965 [MuTIOL Media IO] [1039:0965] (rev 48)
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>>>>              Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
>>>>              Latency: 0
>>>>      
>>>>      00:02.5 IDE interface [0101]: Silicon Integrated Systems [SiS] 5513 IDE Controller [1039:5513] (rev 01) (prog-if 80 [Master])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 Motherboard [1734:1095]
>>>>              Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 128
>>>>              Interrupt: pin ? routed to IRQ 16
>>>>              Region 0: I/O ports at 01f0 [size=8]
>>>>              Region 1: I/O ports at 03f4
>>>>              Region 2: I/O ports at 0170 [size=8]
>>>>              Region 3: I/O ports at 0374
>>>>              Region 4: I/O ports at 1c80 [size=16]
>>>>              Capabilities: [58] 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-
>>>>              Kernel driver in use: pata_sis
>>>>      
>>>>      00:02.7 Multimedia audio controller [0401]: Silicon Integrated Systems [SiS] SiS7012 AC'97 Sound Controller [1039:7012] (rev a0)
>>>>              Subsystem: Fujitsu Technology Solutions Device [1734:109c]
>>>>              Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 173 (13000ns min, 2750ns max)
>>>>              Interrupt: pin C routed to IRQ 18
>>>>              Region 0: I/O ports at 1400 [size=256]
>>>>              Region 1: I/O ports at 1000 [size=128]
>>>>              Capabilities: [48] Power Management version 2
>>>>                      Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
>>>>                      Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>>>>              Kernel driver in use: snd_intel8x0
>>>>      
>>>>      00:03.0 USB controller [0c03]: Silicon Integrated Systems [SiS] USB 1.1 Controller [1039:7001] (rev 0f) (prog-if 10 [OHCI])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 Motherboard [1734:1095]
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64 (20000ns max)
>>>>              Interrupt: pin A routed to IRQ 20
>>>>              Region 0: Memory at f2000000 (32-bit, non-prefetchable) [size=4K]
>>>>              Kernel driver in use: ohci-pci
>>>>      
>>>>      00:03.1 USB controller [0c03]: Silicon Integrated Systems [SiS] USB 1.1 Controller [1039:7001] (rev 0f) (prog-if 10 [OHCI])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 Motherboard [1734:1095]
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64 (20000ns max)
>>>>              Interrupt: pin B routed to IRQ 21
>>>>              Region 0: Memory at f2001000 (32-bit, non-prefetchable) [size=4K]
>>>>              Kernel driver in use: ohci-pci
>>>>      
>>>>      00:03.2 USB controller [0c03]: Silicon Integrated Systems [SiS] USB 1.1 Controller [1039:7001] (rev 0f) (prog-if 10 [OHCI])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 Motherboard [1734:1095]
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64 (20000ns max)
>>>>              Interrupt: pin C routed to IRQ 22
>>>>              Region 0: Memory at f2002000 (32-bit, non-prefetchable) [size=4K]
>>>>              Kernel driver in use: ohci-pci
>>>>      
>>>>      00:03.3 USB controller [0c03]: Silicon Integrated Systems [SiS] USB 2.0 Controller [1039:7002] (prog-if 20 [EHCI])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 [1734:1095]
>>>>              Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64 (20000ns max)
>>>>              Interrupt: pin D routed to IRQ 23
>>>>              Region 0: Memory at f2003000 (32-bit, non-prefetchable) [size=4K]
>>>>              Capabilities: [50] Power Management version 2
>>>>                      Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
>>>>                      Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>>>>              Kernel driver in use: ehci-pci
>>>>      
>>>>      00:05.0 IDE interface [0101]: Silicon Integrated Systems [SiS] 182 SATA/RAID Controller [1039:0182] (rev 01) (prog-if 8f [Master SecP SecO PriP PriO])
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 [1734:1095]
>>>>              Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64
>>>>              Interrupt: pin A routed to IRQ 17
>>>>              Region 0: I/O ports at 1cb0 [size=8]
>>>>              Region 1: I/O ports at 1ca4 [size=4]
>>>>              Region 2: I/O ports at 1ca8 [size=8]
>>>>              Region 3: I/O ports at 1ca0 [size=4]
>>>>              Region 4: I/O ports at 1c90 [size=16]
>>>>              Region 5: I/O ports at 1c00 [size=128]
>>>>              Capabilities: [58] 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-
>>>>              Kernel driver in use: sata_sis
>>>>      
>>>>      00:06.0 PCI bridge [0604]: Silicon Integrated Systems [SiS] PCI-to-PCI bridge [1039:000a] (prog-if 00 [Normal decode])
>>>>              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
>>>>              Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
>>>>              Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
>>>>              BridgeCtl: Parity+ SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
>>>>                      PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
>>>>              Capabilities: [b0] Subsystem: Silicon Integrated Systems [SiS] Device [1039:0000]
>>>>              Capabilities: [c0] MSI: Enable+ Count=1/1 Maskable- 64bit-
>>>>                      Address: fee0100c  Data: 4181
>>>>              Capabilities: [d0] Express (v1) Root Port (Slot+), MSI 00
>>>>                      DevCap: MaxPayload 128 bytes, PhantFunc 0
>>>>                              ExtTag+ RBE-
>>>>                      DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>>>                              RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
>>>>                              MaxPayload 128 bytes, MaxReadReq 128 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 <2us
>>>>                              ClockPM- Surprise- LLActRep- BwNot-
>>>>                      LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
>>>>                              ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>>                      LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
>>>>                      SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
>>>>                              Slot #0, PowerLimit 0.000W; Interlock- NoCompl-
>>>>                      SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
>>>>                              Control: AttnInd Off, PwrInd Off, Power- Interlock-
>>>>                      SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
>>>>                              Changed: MRL- PresDet- LinkState-
>>>>                      RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
>>>>                      RootCap: CRSVisible-
>>>>                      RootSta: PME ReqID 0000, PMEStatus- PMEPending-
>>>>              Capabilities: [f4] 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: [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=ff
>>>>                              Status: NegoPending- InProgress-
>>>>              Capabilities: [130 v1] Advanced Error Reporting
>>>>                      UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>>>                      UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
>>>>                      UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
>>>>                      CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
>>>>                      CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
>>>>                      AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
>>>>              Kernel driver in use: pcieport
>>>>      
>>>>      00:09.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8169 PCI Gigabit Ethernet Controller [10ec:8169] (rev 10)
>>>>              Subsystem: Fujitsu Technology Solutions D2030-A1 [1734:1091]
>>>>              Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
>>>>              Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
>>>>              Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 32 bytes
>>>>              Interrupt: pin A routed to IRQ 19
>>>>              Region 0: I/O ports at 1800 [size=256]
>>>>              Region 1: Memory at f2004000 (32-bit, non-prefetchable) [size=256]
>>>>              Capabilities: [dc] Power Management version 2
>>>>                      Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
>>>>                      Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>>>>              Kernel driver in use: r8169
>>>>      
>>>>      00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration [1022:1100]
>>>>              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-
>>>>              Capabilities: [80] HyperTransport: Host or Secondary Interface
>>>>                      Command: WarmRst+ DblEnd- DevNum=0 ChainSide- HostHide+ Slave- <EOCErr- DUL-
>>>>                      Link Control: CFlE- CST- CFE- <LkFail- Init+ EOC- TXO- <CRCErr=0 IsocEn- LSEn- ExtCTL- 64b-
>>>>                      Link Config: MLWI=16bit DwFcIn- MLWO=16bit DwFcOut- LWI=16bit DwFcInEn- LWO=16bit DwFcOutEn-
>>>>                      Revision ID: 1.02
>>>>                      Link Frequency: 800MHz
>>>>                      Link Error: <Prot- <Ovfl- <EOC- CTLTm-
>>>>                      Link Frequency Capability: 200MHz+ 300MHz- 400MHz+ 500MHz- 600MHz+ 800MHz+ 1.0GHz- 1.2GHz- 1.4GHz- 1.6GHz- Vend-
>>>>                      Feature Capability: IsocFC- LDTSTOP+ CRCTM- ECTLT- 64bA- UIDRD- ExtRS- UCnfE-
>>>>      
>>>>      00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Address Map [1022:1101]
>>>>              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-
>>>>      
>>>>      00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] DRAM Controller [1022:1102]
>>>>              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-
>>>>              Kernel driver in use: amd64_edac
>>>>      
>>>>      00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] K8 [Athlon64/Opteron] Miscellaneous Control [1022:1103]
>>>>              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-
>>>>              Kernel driver in use: k8temp
>>>>      
>>>>      01:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] RV710/M92 [Mobility Radeon HD 4530/4570/545v] [1002:9553] (prog-if 00 [VGA controller])
>>>>              Subsystem: PC Partner Limited / Sapphire Technology Device [174b:3092]
>>>>              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 42
>>>>              Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
>>>>              Region 2: Memory at f2100000 (64-bit, non-prefetchable) [size=64K]
>>>>              Region 4: I/O ports at 2000 [size=256]
>>>>              [virtual] Expansion ROM at f2120000 [disabled] [size=128K]
>>>>              Capabilities: [50] 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: [58] Express (v2) Legacy Endpoint, MSI 00
>>>>                      DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
>>>>                              ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>>>                      DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>>>                              RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
>>>>                              MaxPayload 128 bytes, MaxReadReq 128 bytes
>>>>                      DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
>>>>                      LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
>>>>                              ClockPM- Surprise- LLActRep- BwNot-
>>>>                      LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>>>                              ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>>                      LnkSta: Speed 2.5GT/s, Width x16, 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: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>>                      Address: 00000000fee0100c  Data: 41e1
>>>>              Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
>>>>              Kernel driver in use: radeon
>>>>      
>>>>      01:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] RV710/730 HDMI Audio [Radeon HD 4000 series] [1002:aa38]
>>>>              Subsystem: PC Partner Limited / Sapphire Technology Device [174b:aa38]
>>>>              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 B routed to IRQ 41
>>>>              Region 0: Memory at f2110000 (64-bit, non-prefetchable) [size=16K]
>>>>              Capabilities: [50] 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: [58] Express (v2) Legacy Endpoint, MSI 00
>>>>                      DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
>>>>                              ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>>>                      DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
>>>>                              RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
>>>>                              MaxPayload 128 bytes, MaxReadReq 128 bytes
>>>>                      DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
>>>>                      LnkCap: Port #0, Speed 2.5GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
>>>>                              ClockPM- Surprise- LLActRep- BwNot-
>>>>                      LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>>>                              ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>>                      LnkSta: Speed 2.5GT/s, Width x16, 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
>>>>                      LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
>>>>                               EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
>>>>              Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>>                      Address: 00000000fee0100c  Data: 41d1
>>>>              Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
>>>>              Kernel driver in use: snd_hda_intel
>>>>
>>>>
>>>> Grüße,
>>>>   Thomas
>> Thomas can you provide output of lspci -t
>>
>> Also did you had a chance to test my ugly patch ?
>>
>> Cheers,
>> Jérôme
> If my ugly patch works does this quirk also work ?
>



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