First of all, I want to say that I'm getting similar errors, which are
causing lock-ups on my computers.  I'm not sure it's because of the
ivtv driver or my particular chipset (ATI).

Secondly, you have to realize that, by default, you don't get a copy
of the email you send to the mailing list yourself.

Xiaotian

On 5/16/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> I am getting repeated (10 a second or so) of this error message in my dmesg:
> 
> ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR
> ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR
> ivtv: IRQ: IVTV_IRQ_DEC_DMA_ERR
> 
> I have tried multiple versions of the driver, from the "stable" old releases
> to
> the newest 0.3.4q.  I have 2 PVR 250s.  I just added the
> second one two days ago.  I am unaware if the new one caused this as the
> recordings are still fine.  The only thing that tipped me off to
> these messages was a 4.2 Gig /var/log/messages file!!!  I do not have the
> second
> pvr 250 set up as I have directv and no second receiver to
> use yet.  I do not know enough about driver options and the ivtv driver
> itself,
> as i have never passed it any options and it has worked
> fine.  Now I am wondering what the cause of these messages is... If I start
> watching Live TV from a cold boot, I do not get these messages.
> When I start watching a recording, they start, and will not stop until another
> cold boot.  I am baffled because the messages will start even
> if I'm watching something in MythVideo, which should be completely isolated.
> Here is the output of my IVTV dmesg stuff:
> 
> May 15 12:03:28 mythtv ivtv: ==================== START INIT IVTV
> ====================
> May 15 12:03:28 mythtv ivtv: version 0.3.3 (t) loading
> May 15 12:03:28 mythtv ivtv: Linux version: 2.6.10-gentoo-r6 SMP preempt
> PENTIUM4 4KSTACKS gcc-3.3
> May 15 12:03:28 mythtv ivtv: In case of problems please include the debug info
> May 15 12:03:28 mythtv ivtv: between the START INIT IVTV and END INIT IVTV
> lines
> when
> May 15 12:03:28 mythtv ivtv: mailing the ivtv-devel mailinglist.
> May 15 12:03:28 mythtv ivtv: Autodetected WinTV PVR 250 card
> May 15 12:03:28 mythtv ivtv: Found an iTVC16 based chip
> May 15 12:03:28 mythtv ACPI: PCI interrupt 0000:00:08.0[A] -> GSI 11 (level,
> low) -> IRQ 11
> May 15 12:03:28 mythtv ivtv: Unreasonably low latency timer, setting to 64
> (was 32)
> May 15 12:03:28 mythtv ivtv: VIA PCI device: 0x3168 vendor: 0x1106
> May 15 12:03:28 mythtv tveeprom: Hauppauge: model = 32552, rev = C168, serial#
> =
> 7648526
> May 15 12:03:28 mythtv tveeprom: tuner = LG TAPE H001F MK3 (idx = 68, type =
> 47)
> May 15 12:03:28 mythtv tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 =
> 0x00001000)
> May 15 12:03:28 mythtv tveeprom: audio_processor = MSP3440 (type = 11)
> May 15 12:03:28 mythtv ivtv: i2c attach [client=tveeprom[50],ok]
> May 15 12:03:28 mythtv ivtv: Tuner Type 47, Tuner formats 0x00001000, Radio:
> yes, Model 0x008d1598, Revision 0x00000001
> May 15 12:03:28 mythtv ivtv: NTSC tuner detected
> May 15 12:03:28 mythtv ivtv: Radio detected
> May 15 12:03:28 mythtv tuner: Ignoring new-style parameters in presence of
> obsolete ones
> May 15 12:03:28 mythtv tuner: chip found at addr 0xc2 i2c-bus ivtv i2c driver
> #0
> May 15 12:03:28 mythtv ivtv: i2c attach [client=(tuner unset),ok]
> May 15 12:03:28 mythtv saa7115: starting probe for adapter ivtv i2c driver #0
> (0x10005)
> May 15 12:03:28 mythtv saa7115: detecting saa7115 client on address 0x42
> May 15 12:03:28 mythtv saa7115: writing init values
> May 15 12:03:28 mythtv ivtv: i2c attach [client=saa7115[50],ok]
> May 15 12:03:28 mythtv saa7115: status: (1E) 0x00, (1F) 0xc0
> May 15 12:03:28 mythtv msp34xx: ivtv version
> May 15 12:03:28 mythtv msp34xx: init: chip=MSP3448W-A2, has NICAM support,
> simple (D) mode, simpler (G) no-thread mode
> May 15 12:03:28 mythtv msp34xx: $Id$ compiled on: May 15 2005 10:54:54
> May 15 12:03:28 mythtv ivtv: i2c attach [client=MSP3448W-A2,ok]
> May 15 12:03:28 mythtv ivtv: Encoder revision: 0x02040024
> May 15 12:03:28 mythtv ivtv: Encoder Firmware may be buggy, use version
> 0x02040011
> May 15 12:03:28 mythtv ivtv: Configuring WinTV PVR 250 card with 5 streams
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 0 minor 0
> May 15 12:03:28 mythtv ivtv: Create DMA stream 0 using 1024 16384 byte buffers
> 0 kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 0 using 1024 16384 byte
> buffers
> 16777216 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 1 minor 32
> May 15 12:03:28 mythtv ivtv: Create DMA stream 1
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 1
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 2 minor 224
> May 15 12:03:28 mythtv ivtv: Create DMA stream 2 using 80 52224 byte buffers
> 0
> kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 2 using 80 52224 byte buffers
> 4194304 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 3 minor 24
> May 15 12:03:28 mythtv ivtv: Create DMA stream 3 using 455 4608 byte buffers
> 0
> kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 3 using 455 4608 byte buffers
> 2097152 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 4 minor 64
> May 15 12:03:28 mythtv ivtv: Create stream 4
> May 15 12:03:28 mythtv ivtv: Allocate stream 4
> May 15 12:03:28 mythtv ivtv: Setting Tuner 47
> May 15 12:03:28 mythtv tuner: type set to 47 (LG NTSC (TAPE series)) by ivtv
> i2c
> driver #0
> May 15 12:03:28 mythtv saa7115: decoder set input (4)
> May 15 12:03:28 mythtv saa7115: now setting Composite input
> May 15 12:03:28 mythtv ivtv: Setting audio matrix to input 3, output 1
> May 15 12:03:28 mythtv ivtv: Switching standard to NTSC.
> May 15 12:03:28 mythtv ivtv: ivtv_enc_thread: pid = 5256, itv = 0xe0ac3620
> May 15 12:03:28 mythtv saa7115: decoder set norm NTSC
> May 15 12:03:28 mythtv saa7115: set audio: 0x01
> May 15 12:03:28 mythtv ivtv: Initialized WinTV PVR 250, card #0
> May 15 12:03:28 mythtv ivtv: Autodetected WinTV PVR 250 card
> May 15 12:03:28 mythtv ivtv: Found an iTVC15 based chip
> May 15 12:03:28 mythtv ACPI: PCI interrupt 0000:00:09.0[A] -> GSI 11 (level,
> low) -> IRQ 11
> May 15 12:03:28 mythtv ivtv: Unreasonably low latency timer, setting to 64
> (was 32)
> May 15 12:03:28 mythtv ivtv: VIA PCI device: 0x3168 vendor: 0x1106
> May 15 12:03:28 mythtv tveeprom: Hauppauge: model = 48432, rev = I110, serial#
> =
> 6143256
> May 15 12:03:28 mythtv tveeprom: tuner = Philips FI1236 MK2 (idx = 10, type =
> 2)
> May 15 12:03:28 mythtv tveeprom: tuner fmt = NTSC(M) (eeprom = 0x08, v4l2 =
> 0x00001000)
> May 15 12:03:28 mythtv tveeprom: audio_processor = MSP3440 (type = 11)
> May 15 12:03:28 mythtv ivtv: i2c attach [client=tveeprom[50],ok]
> May 15 12:03:28 mythtv tuner: chip found at addr 0xc2 i2c-bus ivtv i2c driver
> #1
> May 15 12:03:28 mythtv ivtv: i2c attach [client=(tuner unset),ok]
> May 15 12:03:28 mythtv saa7115: starting probe for adapter ivtv i2c driver #1
> (0x10005)
> May 15 12:03:28 mythtv saa7115: detecting saa7115 client on address 0x42
> May 15 12:03:28 mythtv saa7115: writing init values
> May 15 12:03:28 mythtv ivtv: i2c attach [client=saa7115[50],ok]
> May 15 12:03:28 mythtv saa7115: status: (1E) 0x48, (1F) 0xc0
> May 15 12:03:28 mythtv msp34xx: ivtv version
> May 15 12:03:28 mythtv msp34xx: init: chip=MSP3448W-A2, has NICAM support,
> simple (D) mode, simpler (G) no-thread mode
> May 15 12:03:28 mythtv msp34xx: $Id$ compiled on: May 15 2005 10:54:54
> May 15 12:03:28 mythtv ivtv: i2c attach [client=MSP3448W-A2,ok]
> May 15 12:03:28 mythtv ivtv: Tuner Type 2, Tuner formats 0x00001000, Radio:
> yes,
> Model 0x00a51450, Revision 0x00000000
> May 15 12:03:28 mythtv ivtv: NTSC tuner detected
> May 15 12:03:28 mythtv ivtv: Radio detected
> May 15 12:03:28 mythtv ivtv: Encoder revision: 0x02040024
> May 15 12:03:28 mythtv ivtv: Encoder Firmware may be buggy, use version
> 0x02040011
> May 15 12:03:28 mythtv ivtv: Decoder revision: 0x02020023
> May 15 12:03:28 mythtv ivtv: Configuring WinTV PVR 250 card with 5 streams
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 0 minor 1
> May 15 12:03:28 mythtv ivtv: Create DMA stream 0 using 1024 16384 byte buffers
> 0 kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 0 using 1024 16384 byte
> buffers
> 16777216 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 1 minor 33
> May 15 12:03:28 mythtv ivtv: Create DMA stream 1
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 1
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 2 minor 225
> May 15 12:03:28 mythtv ivtv: Create DMA stream 2 using 80 52224 byte buffers
> 0
> kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 2 using 80 52224 byte buffers
> 4194304 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 3 minor 25
> May 15 12:03:28 mythtv ivtv: Create DMA stream 3 using 455 4608 byte buffers
> 0
> kbytes total
> May 15 12:03:28 mythtv ivtv: Allocate DMA stream 3 using 455 4608 byte buffers
> 2097152 kbytes total
> May 15 12:03:28 mythtv ivtv: Registered v4l2 device, streamtype 4 minor 65
> May 15 12:03:28 mythtv ivtv: Create stream 4
> May 15 12:03:28 mythtv ivtv: Allocate stream 4
> May 15 12:03:28 mythtv ivtv: Setting Tuner 2
> May 15 12:03:28 mythtv tuner: type set to 2 (Philips NTSC (FI1236,FM1236 and
> compatibles)) by ivtv i2c driver #1
> May 15 12:03:28 mythtv saa7115: decoder set input (4)
> May 15 12:03:28 mythtv saa7115: now setting Composite input
> May 15 12:03:28 mythtv ivtv: Setting audio matrix to input 3, output 1
> May 15 12:03:28 mythtv ivtv: ivtv_enc_thread: pid = 5277, itv = 0xe0ad7570
> May 15 12:03:28 mythtv ivtv: Switching standard to NTSC.
> May 15 12:03:28 mythtv spurious 8259A interrupt: IRQ7.
> May 15 12:03:28 mythtv saa7115: decoder set norm NTSC
> May 15 12:03:28 mythtv saa7115: set audio: 0x01
> May 15 12:03:28 mythtv ivtv: Initialized WinTV PVR 250, card #1
> May 15 12:03:28 mythtv ivtv: ====================  END INIT IVTV
> ====================
> 
> I believe the second tuner should be set to the LG TAPE tuner too, but am not
> positive, as the cards do differ slightly.  Another thing to
> note is that the second tuner does not have radio, but ivtv seems to detect
> one.
> 
> If anybody has any driver versions they think might work, or any
> suggestions/module options, etc. please let me know!
> 
> Chris, if you want me to try specific stuff/code, just let me know! Whatever I
> can do to help you out, you'd really be just helping me out in the long run!!!
> With close inspection of my 4.2 Gig log file, these errors definitely
> started upon adding the second pvr 250...  also, in the older driver version
> (marked stable...)
> 
> I have no idea what to try, and I can't find any solutions searching
> gossimer threads or google at all...  I have tried newer versions, like the
> recent thread spoke of where Chris was trying out new code, but that does
> nothing
> but change the 6 line error message to a 1 liner.  I have also tried adding
> pci=routing, and/or noapic to my kernel options, I have changed PnP OS in BIOS
> to
> no/yes, disabled/enabled different IRQ settings, disabled APIC in BIOS, etc.
> I
> cannot get anything to work... The closest thing to error-free is disabling
> IRQ
> 11 in BIOS as a reserved IRQ, then the two PVR250s go on different IRQs and
> when
> recording, I do not get any error messages.  Upon playback in MythTV, I start
> to
> get bombarded with the IRQ/DMA errors...
> 
> I hope somebody can help me!!!
> -Mat
> 
> P.S. If my gmail e-mails finally go through, I appologize for the multiple
> posts...
> 
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