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Date: Fri, 30 Aug 2002 09:59:08 -0300
To: linux-kernel@vger.kernel.org
Subject: Re: PROBLEM: CD burning at 12x uses excessive CPU, although DMA is enabled
Message-ID: <20020830125908.GB18072@khazad-dum>
References: <20020830043346.GA5793@bruder.net> <Pine.LNX.4.10.10208292336130.7329-100000@master.linux-ide.org>
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From: hmh@debian.org (Henrique de Moraes Holschuh)
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On Thu, 29 Aug 2002, Andre Hedrick wrote:
> > lspci -vvv
> > 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03)
> > 	Subsystem: Elitegroup Computer Systems: Unknown device 0987
> > 	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> > 	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
> > 	Latency: 8
> ^^^^^^^^^^^^^^^^^^
> This tends to really roto-til things.
> 
> This needs to be "0" in may tests systems observed.

96 has worked well here, no weird crap happening to the burner in TAO or DAO
mode using cdrecord, and DAO recording of music CDs using cdrdao.  lspci
-v -v attached, just in case it is useful for something.

The default was 32, which definately caused trouble with VIA's utter shitty
PCI implementation.

Kernel is still 2.4.18, though.

> > 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode])
> > 	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
> > 	Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+
> > 	Latency: 0
> ^^^^^^^^^^^^^^^^^^
> 
> Bet you have nice video performance

Screwed up, ain't it?  The nvidia drivers do that too in my machine, and I
just gave up setpci'ng it back to a proper number.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 02)
	Subsystem: Asustek Computer, Inc. A7V Mainboard
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+
	Latency: 8
	Region 0: Memory at e6000000 (32-bit, prefetchable) [size=32M]
	Capabilities: [a0] AGP version 2.0
		Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
		Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+
	Latency: 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
	Memory behind bridge: d6000000-d7dfffff
	Prefetchable memory behind bridge: d7f00000-e5ffffff
	BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI+ D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
	Subsystem: Asustek Computer, Inc. A7V Mainboard
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 0

00:04.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 10) (prog-if 8a [Master SecP PriP])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 96
	Region 4: I/O ports at d800 [size=16]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.2 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00 [UHCI])
	Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32, cache line size 08
	Interrupt: pin D routed to IRQ 5
	Region 4: I/O ports at d400 [size=32]
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.3 USB Controller: VIA Technologies, Inc. USB (rev 10) (prog-if 00 [UHCI])
	Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32, cache line size 08
	Interrupt: pin D routed to IRQ 5
	Region 4: I/O ports at d000 [size=32]
	Capabilities: [80] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:04.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
	Subsystem: Asustek Computer, Inc. A7V Mainboard
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin ? routed to IRQ 9
	Capabilities: [68] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C (rev 10)
	Subsystem: Realtek Semiconductor Co., Ltd. RT8139
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (8000ns min, 16000ns max)
	Interrupt: pin A routed to IRQ 5
	Region 0: I/O ports at a400 [size=256]
	Region 1: Memory at d5800000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:0a.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
	Subsystem: KYE Systems Corporation: Unknown device 7003
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 32 (1000ns min, 6000ns max)
	Interrupt: pin A routed to IRQ 5
	Region 0: Memory at d5000000 (32-bit, non-prefetchable) [size=4K]
	Region 1: Memory at d4800000 (32-bit, non-prefetchable) [size=1M]
	Capabilities: [40] Power Management version 2
		Flags: PMEClk+ DSI+ D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

00:11.0 Unknown mass storage controller: Promise Technology, Inc. 20265 (rev 02)
	Subsystem: Promise Technology, Inc. Ultra100
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 96
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at a000 [size=8]
	Region 1: I/O ports at 9800 [size=4]
	Region 2: I/O ports at 9400 [size=8]
	Region 3: I/O ports at 9000 [size=4]
	Region 4: I/O ports at 8800 [size=64]
	Region 5: Memory at d4000000 (32-bit, non-prefetchable) [size=128K]
	Expansion ROM at <unassigned> [disabled] [size=128K]
	Capabilities: [58] Power Management version 1
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX] (rev b2) (prog-if 00 [VGA])
	Subsystem: Asustek Computer, Inc. V7100 Pro with TV output
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
	Latency: 248 (1250ns min, 250ns max)
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at d6000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at d8000000 (32-bit, prefetchable) [size=128M]
	Expansion ROM at d7ff0000 [disabled] [size=64K]
	Capabilities: [60] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [44] AGP version 2.0
		Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2,x4
		Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>


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