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

From: Deucher, Alexander
Date: Mon Apr 28 2014 - 08:52:38 EST

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> -----Original Message-----
> From: Deucher, Alexander
> Sent: Monday, April 28, 2014 8:50 AM
> To: Koenig, Christian; Jerome Glisse; Thomas Schwinge
> Cc: Bjorn Helgaas; linux-pci@xxxxxxxxxxxxxxx; Johannes Weiner; Mel Gorman;
> Rik van Riel; Andrea Arcangeli; Zlatko Calusic; Minchan Kim; linux-
> mm@xxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Andrew Morton; dri-
> devel@xxxxxxxxxxxxxxxxxxxxx
> Subject: RE: radeon: screen garbled after page allocator change, was: Re:
> [patch v2 3/3] mm: page_alloc: fair zone allocator policy
>
> > -----Original Message-----
> > From: Koenig, Christian
> > Sent: Monday, April 28, 2014 3:30 AM
> > To: Jerome Glisse; Thomas Schwinge
> > Cc: Bjorn Helgaas; linux-pci@xxxxxxxxxxxxxxx; Johannes Weiner; Mel
> Gorman;
> > Rik van Riel; Andrea Arcangeli; Zlatko Calusic; Minchan Kim; linux-
> > mm@xxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Andrew Morton; Deucher,
> > Alexander; dri-devel@xxxxxxxxxxxxxxxxxxxxx
> > Subject: Re: radeon: screen garbled after page allocator change, was: Re:
> > [patch v2 3/3] mm: page_alloc: fair zone allocator policy
> >
> > > + /* 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?
>
> IIRC, there was someone on IRC with a similar problem with a similar SiS
> chipset a while back. These SiS chipsets seem to be generally problematic.

IIRC, in the IRC case, the fix was to limit the about of physical memory in the system.

Alex

>
> Alex
>
> >
> > 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@xxxxxxxxxxx> 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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