What motherboard/chipset do you have? I have a
SuperMicro P4DCE+ with dual Xeon 2.2ghz with an
SMP/SMT kernel, 8kstacks preempt and everything has
been working swimmingly.

Like with the KT333 issue that I had, it might be good
to find a commonality with these things... If maybe
there's a dma handling bug somewhere that we or the
kernel people should work around...?

Jason

--- Paul Check <[EMAIL PROTECTED]> wrote:

> Hey Rich: I have similar DMA problems on a dual
> Xeon, with varying 
> degrees depending on what version of the ivtv driver
> I use. It has been 
> suggested that running with a single proc kernel
> without HT would solve 
> it, but I'm waiting for a better solution :).
> 
> --Paul
> 
> Rich wrote:
> 
> >Any good ideas on what I can try to resolve these
> DMA errors?
> >
> >Current result:
> >   Master server:
> >      Stops after ~30 seconds
> >      Errors in messages
> >          ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR intr 1
> >          ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR intr 2
> >   Slave server:
> >      Runs but continually posts to messages
> >           ivtv: Timeout waiting for data!
> >           ivtv: ENC: REG_DMAXFER wait failed
> messages
> >
> >Configuration:
> >   Master Myth Server:
> >      Dual AMD, Tyan Tiger MP S2460, V 1.05
> (Latest)
> >      Power Supply: Thermaltake Silent X 480W
> >      Two WinTV PVR 350 cards, iTVC15 based chip,
> tuner 47
> >          ivtv version 0.2.0 (rc3h)
> >          Encoder revision: 0x02040011
> >          Decoder revision: 0x02020023
> >      2.6.10-1.770_FC3
> >
> >   Slave Myth Server:
> >      Single AMD (64), MSI K8N, v6.0 Award
> >      Power Supply: Thermaltake Silent X 480W
> >      One WinTV PVR 350 cards, iTVC15 based chip,
> tuner 47
> >          ivtv version 0.2.0 (rc3h)
> >          Encoder revision: 0x02040011
> >          Decoder revision: 0x02020023
> >      2.6.10-1.770_FC3
> >
> >
> >Master server /var/log/messages:
> >ivtv: ==================== START INIT IVTV
> ====================
> >ivtv: version 0.2.0 (rc3h) loading
> >ivtv: Linux version: 2.6.10-1.770_FC3.bladesmp SMP
> 686 REGPARM 4KSTACKS
> >gcc-3.4
> >ivtv: In case of problems please include the debug
> info
> >ivtv: between the START INIT IVTV and END INIT IVTV
> lines when
> >ivtv: mailing the ivtv-devel mailinglist.
> >ivtv: Autodetected WinTV PVR 350 card
> >ivtv: Found an iTVC15 based chip
> >ivtv: XXX PCI device: 0x700c vendor: 0x1022
> >tveeprom: Hauppauge: model = 48132, rev = K268,
> serial# = 2867009
> >tveeprom: tuner = LG TAPE H001F MK3 (idx = 68, type
> = 47)
> >tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2
> = 0x00001000)
> >tveeprom: audio_processor = MSP3440 (type = 11)
> >ivtv: i2c attach [client=tveeprom[0],ok]
> >ivtv: Tuner Type 47, Tuner formats 0x00001000,
> Radio: yes, Model
> >0x00ad2598,  Revision 0x00000001
> >ivtv: NTSC tuner detected
> >ivtv: Radio detected
> >tuner: chip found at addr 0xc2 i2c-bus ivtv i2c
> driver #0
> >ivtv: i2c attach [client=(tuner unset),ok]
> >saa7115: starting probe for adapter ivtv i2c driver
> #0 (0x10005)
> >saa7115: detecting saa7115 client on address 0x42
> >saa7115: writing init values
> >ivtv: i2c attach [client=saa7115[0],ok]
> >saa7115: status: (1E) 0x81, (1F) 0xb1
> >saa7127: video encoder driver version V 0.3 loaded
> >saa7127: Selecting NTSC video Standard
> >saa7127: Selecting S-Video+Composite
> >saa7127: Turn WSS off
> >saa7127: Widescreen Mode 4:3 Full Format
> >saa7127: Selecting Normal Encoder Input
> >saa7127: Enable Video Output
> >ivtv: i2c attach [client=saa7127[0],ok]
> >msp34xx: ivtv version
> >msp34xx: init: chip=MSP3448W-A2, has NICAM support,
> simple (D) mode,
> >simpler (G) no-thread mode
> >msp34xx: $Id$ compiled on: Mar 12 2005 17:23:53
> >ivtv: i2c attach [client=MSP3448W-A2,ok]
> >ivtv: Encoder revision: 0x02040011
> >ivtv: Decoder revision: 0x02020023
> >ivtv: Configuring WinTV PVR 350 card with 9 streams
> >ivtv: Create DMA stream 0 using 256 16384 byte
> buffers  4194304 kbytes total
> >ivtv: Registered v4l2 device, streamtype 0 minor 0
> >ivtv: Create DMA stream 1
> >ivtv: Registered v4l2 device, streamtype 1 minor 32
> >ivtv: Create stream 2 using 40 52224 byte buffers 
> 2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 2 minor
> 224
> >ivtv: Create DMA stream 3 using 455 4608 byte
> buffers  2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 3 minor 24
> >ivtv: Create stream 4
> >ivtv: Registered v4l2 device, streamtype 4 minor 64
> >ivtv: Create DMA stream 5 using 16 65536 byte
> buffers  1048576 kbytes total
> >ivtv: Registered v4l2 device, streamtype 5 minor 16
> >ivtv: Create stream 6 using 1024 2048 byte buffers 
> 262144 kbytes total
> >ivtv: Registered v4l2 device, streamtype 6 minor
> 228
> >ivtv: Create stream 7
> >ivtv: Registered v4l2 device, streamtype 7 minor
> 232
> >ivtv: Create DMA stream 8
> >ivtv: Registered v4l2 device, streamtype 8 minor 48
> >ivtv: Setting Tuner 47
> >tuner: type set to 47 (LG NTSC (TAPE series)) by
> ivtv i2c driver #0
> >ivtv: Setting audio matrix to input 3, output 1
> >ivtv: ivtv_enc_thread: pid = 2072, itv = 0xf8ae8620
> >ivtv: ivtv_dec_thread: pid = 2073, itv = 0xf8ae8620
> >ivtv: Switching standard to NTSC.
> >saa7115: decoder set norm NTSC
> >saa7115: set audio: 0x01
> >saa7127: Setting Encoder Video Standard
> >saa7127: Set NTSC Video Mode
> >saa7127: Selecting NTSC video Standard
> >ivtv: Initialized WinTV PVR 350, card #0
> >ivtv: Autodetected WinTV PVR 350 card
> >ivtv: Found an iTVC15 based chip
> >ivtv: XXX PCI device: 0x700c vendor: 0x1022
> >tveeprom: Hauppauge: model = 48132, rev = K268,
> serial# = 2867007
> >tveeprom: tuner = LG TAPE H001F MK3 (idx = 68, type
> = 47)
> >tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2
> = 0x00001000)
> >tveeprom: audio_processor = MSP3440 (type = 11)
> >ivtv: i2c attach [client=tveeprom[1],ok]
> >tuner: chip found at addr 0xc2 i2c-bus ivtv i2c
> driver #1
> >ivtv: i2c attach [client=(tuner unset),ok]
> >saa7115: starting probe for adapter ivtv i2c driver
> #1 (0x10005)
> >saa7115: detecting saa7115 client on address 0x42
> >saa7115: writing init values
> >ivtv: i2c attach [client=saa7115[1],ok]
> >saa7115: status: (1E) 0x81, (1F) 0xb1
> >saa7127: Selecting NTSC video Standard
> >saa7127: Selecting S-Video+Composite
> >saa7127: Turn WSS off
> >saa7127: Widescreen Mode 4:3 Full Format
> >saa7127: Selecting Normal Encoder Input
> >saa7127: Enable Video Output
> >ivtv: i2c attach [client=saa7127[1],ok]
> >msp34xx: ivtv version
> >msp34xx: init: chip=MSP3448W-A2, has NICAM support,
> simple (D) mode,
> >simpler (G) no-thread mode
> >msp34xx: $Id$ compiled on: Mar 12 2005 17:23:53
> >ivtv: i2c attach [client=MSP3448W-A2,ok]
> >ivtv: Tuner Type 47, Tuner formats 0x00001000,
> Radio: yes, Model
> >0x00ad2598, Revision 0x00000001
> >ivtv: NTSC tuner detected
> >ivtv: Radio detected
> >ivtv: Encoder revision: 0x02040011
> >ivtv: Decoder revision: 0x02020023
> >ivtv: Configuring WinTV PVR 350 card with 9 streams
> >ivtv: Create DMA stream 0 using 256 16384 byte
> buffers  4194304 kbytes total
> >ivtv: Registered v4l2 device, streamtype 0 minor 1
> >ivtv: Create DMA stream 1
> >ivtv: Registered v4l2 device, streamtype 1 minor 33
> >ivtv: Create stream 2 using 40 52224 byte buffers 
> 2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 2 minor
> 225
> >ivtv: Create DMA stream 3 using 455 4608 byte
> buffers  2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 3 minor 25
> >ivtv: Create stream 4
> >ivtv: Registered v4l2 device, streamtype 4 minor 65
> >ivtv: Create DMA stream 5 using 16 65536 byte
> buffers  1048576 kbytes total
> >ivtv: Registered v4l2 device, streamtype 5 minor 17
> >ivtv: Create stream 6 using 1024 2048 byte buffers 
> 262144 kbytes total
> >ivtv: Registered v4l2 device, streamtype 6 minor
> 229
> >ivtv: Create stream 7
> >ivtv: Registered v4l2 device, streamtype 7 minor
> 233
> >ivtv: Create DMA stream 8
> >ivtv: Registered v4l2 device, streamtype 8 minor 49
> >ivtv: Setting Tuner 47
> >tuner: type set to 47 (LG NTSC (TAPE series)) by
> ivtv i2c driver #1
> >ivtv: Setting audio matrix to input 3, output 1
> >ivtv: ivtv_enc_thread: pid = 2217, itv = 0xf8afc980
> >ivtv: ivtv_dec_thread: pid = 2218, itv = 0xf8afc980
> >ivtv: Switching standard to NTSC.
> >saa7115: decoder set norm NTSC
> >saa7115: set audio: 0x01
> >saa7127: Setting Encoder Video Standard
> >saa7127: Set NTSC Video Mode
> >saa7127: Selecting NTSC video Standard
> >ivtv: Initialized WinTV PVR 350, card #1
> >ivtv: ====================  END INIT IVTV 
> ====================
> >
> >ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR intr 1
> >ivtv: DMA Registers State: xfer: 0x00000000, state:
> 0x00000013 dec_addr:
> >0x00000000 enc_addr: 0x376e0000 control: 0x00000003
> >ivtv: DMA DEC Buffers:
> > 0x00000000:0x00000000:0x00000000
> >ivtv: DMA ENC Buffers:
> > 0x000ec2dc:0x372bc000:0x00004000
> > 0x000f02dc:0x372c0000:0x80004000
> > 0x000e3b1c:0x372b0000:0x80004000
> > 0x0011b2dc:0x37228000:0x00004000
> > 0x0011f2dc:0x3722c000:0x80004000
> > 0x000f1adc:0x37250000:0x80004000
> > 0x000f7adc:0x372c0000:0x80004000
> > 0x001452dc:0x37278000:0x00004000
> >ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR intr 2
> >ivtv: DMA Registers State: xfer: 0x00000000, state:
> 0x00000003 dec_addr:
> >0x00000000 enc_addr: 0x376e0000 control: 0x00000003
> >ivtv: DMA DEC Buffers:
> > 0x00000000:0x00000000:0x00000000
> >ivtv: DMA ENC Buffers:
> > 0x000ec2dc:0x372bc000:0x00004000
> > 0x000f02dc:0x372c0000:0x80004000
> > 0x000e3b1c:0x372b0000:0x80004000
> > 0x0011b2dc:0x37228000:0x00004000
> > 0x0011f2dc:0x3722c000:0x80004000
> > 0x000f1adc:0x37250000:0x80004000
> > 0x000f7adc:0x372c0000:0x80004000
> > 0x001452dc:0x37278000:0x00004000
> >ivtv: Checking FW at 22449 jiffies
> >
> >
> >Slave server /var/log/messages:
> >ivtv: ==================== START INIT IVTV
> ====================
> >ivtv: version 0.2.0 (rc3h) loading
> >ivtv: Linux version: 2.6.10-1.770_FC3.blade gcc-3.4
> >ivtv: In case of problems please include the debug
> info
> >ivtv: between the START INIT IVTV and END INIT IVTV
> lines when
> >ivtv: mailing the ivtv-devel mailinglist.
> >ivtv: Autodetected WinTV PVR 350 card
> >ivtv: Found an iTVC15 based chip
> >ACPI: PCI Interrupt Link [APC2] enabled at IRQ 17
> >ACPI: PCI interrupt 0000:02:07.0[A] -> GSI 17
> (level, low) -> IRQ 209
> >ivtv: Unreasonably low latency timer, setting to 64
> (was 32)
> >ivtv: XXX PCI device: 0x00e1 vendor: 0x10de
> >tveeprom: Hauppauge: model = 48132, rev = K268,
> serial# = 2867002
> >tveeprom: tuner = LG TAPE H001F MK3 (idx = 68, type
> = 47)
> >tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2
> = 0x00001000)
> >tveeprom: audio_processor = MSP3440 (type = 11)
> >ivtv: i2c attach [client=tveeprom[0],ok]
> >ivtv: Tuner Type 47, Tuner formats 0x00001000,
> Radio: yes, Model
> >0x00ad2598, Revision 0x00000001
> >ivtv: NTSC tuner detected
> >ivtv: Radio detected
> >tuner: chip found at addr 0xc2 i2c-bus ivtv i2c
> driver #0
> >ivtv: i2c attach [client=(tuner unset),ok]
> >saa7115: starting probe for adapter ivtv i2c driver
> #0 (0x10005)
> >saa7115: detecting saa7115 client on address 0x42
> >saa7115: writing init values
> >ivtv: i2c attach [client=saa7115[0],ok]
> >saa7115: status: (1E) 0x48, (1F) 0xc0
> >saa7127: video encoder driver version V 0.3 loaded
> >saa7127: Selecting NTSC video Standard
> >saa7127: Selecting S-Video+Composite
> >saa7127: Turn WSS off
> >saa7127: Widescreen Mode 4:3 Full Format
> >saa7127: Selecting Normal Encoder Input
> >saa7127: Enable Video Output
> >ivtv: i2c attach [client=saa7127[0],ok]
> >msp34xx: ivtv version
> >msp34xx: init: chip=MSP3448W-A2, has NICAM support,
> simple (D) mode,
> >simpler (G) no-thread mode
> >msp34xx: $Id$ compiled on: Mar 13 2005 07:47:36
> >ivtv: i2c attach [client=MSP3448W-A2,ok]
> >ivtv: Encoder revision: 0x02040011
> >ivtv: Decoder revision: 0x02020023
> >ivtv: Configuring WinTV PVR 350 card with 9 streams
> >ivtv: Create DMA stream 0 using 256 16384 byte
> buffers  4194304 kbytes total
> >ivtv: Registered v4l2 device, streamtype 0 minor 0
> >ivtv: Create DMA stream 1
> >ivtv: Registered v4l2 device, streamtype 1 minor 32
> >ivtv: Create stream 2 using 40 52224 byte buffers 
> 2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 2 minor
> 224
> >ivtv: Create DMA stream 3 using 455 4608 byte
> buffers  2097152 kbytes total
> >ivtv: Registered v4l2 device, streamtype 3 minor 24
> >ivtv: Create stream 4
> >ivtv: Registered v4l2 device, streamtype 4 minor 64
> >ivtv: Create DMA stream 5 using 16 65536 byte
> buffers  1048576 kbytes total
> >ivtv: Registered v4l2 device, streamtype 5 minor 16
> >ivtv: Create stream 6 using 1024 2048 byte buffers 
> 262144 kbytes total
> >ivtv: Registered v4l2 device, streamtype 6 minor
> 228
> >ivtv: Create stream 7
> >ivtv: Registered v4l2 device, streamtype 7 minor
> 232
> >ivtv: Create DMA stream 8
> >ivtv: Registered v4l2 device, streamtype 8 minor 48
> >ivtv: Setting Tuner 47
> >tuner: type set to 47 (LG NTSC (TAPE series)) by
> ivtv i2c driver #0
> >ivtv: Setting audio matrix to input 3, output 1
> >ivtv: Switching standard to NTSC.
> >ivtv: ivtv_enc_thread: pid = 2279, itv =
> 0xffffffffa0145ba0
> >ivtv: ivtv_dec_thread: pid = 2280, itv =
> 0xffffffffa0145ba0
> >saa7115: decoder set norm NTSC
> >saa7115: set audio: 0x01
> >saa7127: Setting Encoder Video Standard
> >saa7127: Set NTSC Video Mode
> >saa7127: Selecting NTSC video Standard
> >ivtv: Initialized WinTV PVR 350, card #0
> >ivtv: ====================  END INIT IVTV 
> ====================
> >
> >ivtv: ENC: REG_DMAXFER wait failed
> >ivtv: DMA Registers State: xfer: 0x00000000, state:
> 0x00000003 dec_addr:
> >0x00000000 enc_addr: 0x1e340060 control: 0x00000003
> >ivtv: DMA DEC Buffers:
> >kernel:  0x00000000:0x00000000:0x00000000
> >kernel: ivtv: DMA ENC Buffers:
> >kernel:  0x001002dc:0x1e308000:0x00004000
> >kernel:  0x001042dc:0x1dcf4000:0x80004000
> >kernel:  0x000f8adc:0x1f690000:0x80004000
> >kernel:  0x000e7b1c:0x1ded4000:0x00004000
> >kernel:  0x000ebb1c:0x1e8e0000:0x80004000
> >kernel:  0xcfc649b7:0xe6a73b25:0xda618cff
> >kernel:  0xa5ca6dd5:0xe5b05780:0x49a968d5
> >kernel:  0x771ed7d8:0x3bb3caf4:0xca2af6f8
> >
> >
> >
> >
>
>-------------------------------------------------------
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> >
> >  
> >
> 
> 
> 
>
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