I got the following messages when I prompted dmesg
Nov 17 14:36:07 luna This may result in reduced system performance.
Nov 17 14:36:07 luna unix: [ID 954099 kern.info] NOTICE: IRQ9 is being shared by drivers with different interrupt levels.
Nov 17 14:36:07 luna This may result in reduced system performance.
Nov 17 14:36:07 luna audioemu: [ID 216691 kern.info] AC97: primary codec, rev. 2.1 or earlier, vendor id1:0x8384,id2:0x7609, 18-bit DAC, 18-bit ADC, 3D-stereo mode 26, aux LNLVL_OUT
Nov 17 14:36:07 luna audioemu: [ID 885429 kern.info] AC97: extid 0x0200, powerdown status 0x000f
Nov 17 14:51:46 luna pseudo: [ID 129642 kern.info] pseudo-device: devinfo0
Nov 17 14:51:46 luna genunix: [ID 936769 kern.info] devinfo0 is /pseudo/devinfo@0
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
Nov 17 14:55:35 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
Nov 17 14:55:35 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
Nov 17 14:55:35 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
Nov 17 14:56:24 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
Nov 17 14:56:24 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
Nov 17 14:56:24 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
bash-2.05#
What's the problem and how to fix it ?
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
> I got the following messages when I prompted dmesg
> Nov 17 14:36:07 luna This may result in reduced system performance.
> Nov 17 14:36:07 luna unix: [ID 954099 kern.info] NOTICE: IRQ9 is being shared by drivers with different interrupt levels.
Hmmm, how about adjusting IRQ assignment in BIOS setting so that video
capture card monopolyze interrupt resource? But, I suppose this is
not so big problem. Video capture device generates "only" 30
interrupts in a second.
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
These message are harmless. I think this is side effect of having
aliases for capture card device. In fact, driver is loaded at system
and attempting to attach. So don't worry about this.
> Nov 17 14:55:35 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
> Nov 17 14:55:35 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
> Nov 17 14:55:35 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
Real problem is this... bt848x driver tries to allocate three DMA
buffers in kernel space, but it couldn't do it.
Do you have installed developing tools? If so, change drv/bt848x.h from
# define NR_FRAMES 3
to
# define NR_FRAMES 2
and rebuild driver. Viewers will work almost fine with this value.
By the way, how many memory in your system? If you use small memory
system, you may need to increase memory because bt848x requires 2700KB
as DMA buffer, this is considered _huge_ in kernel space. (My PC has
128~256MB memory and I can run bt848x driver on it)
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I got the following messages when I prompted dmesg
Nov 17 14:36:07 luna This may result in reduced system performance.
Nov 17 14:36:07 luna unix: [ID 954099 kern.info] NOTICE: IRQ9 is being shared by drivers with different interrupt levels.
Nov 17 14:36:07 luna This may result in reduced system performance.
Nov 17 14:36:07 luna audioemu: [ID 216691 kern.info] AC97: primary codec, rev. 2.1 or earlier, vendor id1:0x8384,id2:0x7609, 18-bit DAC, 18-bit ADC, 3D-stereo mode 26, aux LNLVL_OUT
Nov 17 14:36:07 luna audioemu: [ID 885429 kern.info] AC97: extid 0x0200, powerdown status 0x000f
Nov 17 14:51:46 luna pseudo: [ID 129642 kern.info] pseudo-device: devinfo0
Nov 17 14:51:46 luna genunix: [ID 936769 kern.info] devinfo0 is /pseudo/devinfo@0
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
Nov 17 14:55:35 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
Nov 17 14:55:35 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
Nov 17 14:55:35 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
Nov 17 14:56:24 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
Nov 17 14:56:24 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
Nov 17 14:56:24 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
Nov 17 14:56:24 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
bash-2.05#
What's the problem and how to fix it ?
Hi,
> I got the following messages when I prompted dmesg
> Nov 17 14:36:07 luna This may result in reduced system performance.
> Nov 17 14:36:07 luna unix: [ID 954099 kern.info] NOTICE: IRQ9 is being shared by drivers with different interrupt levels.
Hmmm, how about adjusting IRQ assignment in BIOS setting so that video
capture card monopolyze interrupt resource? But, I suppose this is
not so big problem. Video capture device generates "only" 30
interrupts in a second.
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36f
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,36e
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,351
> Nov 17 14:55:35 luna pci: [ID 642387 kern.warning] WARNING: cannot find reg property in pci109e,350
These message are harmless. I think this is side effect of having
aliases for capture card device. In fact, driver is loaded at system
and attempting to attach. So don't worry about this.
> Nov 17 14:55:35 luna bt848x: [ID 891789 kern.notice] #1 found Bt878 rev 2
> Nov 17 14:55:35 luna bt848x: [ID 105676 kern.warning] WARNING: btx_alloc_dma: DMA memory(gbuf at dfb7fccc)
> Nov 17 14:55:35 luna bt848x: [ID 727685 kern.warning] WARNING: btx_attach: allocated only 2 buffers
Real problem is this... bt848x driver tries to allocate three DMA
buffers in kernel space, but it couldn't do it.
Do you have installed developing tools? If so, change drv/bt848x.h from
# define NR_FRAMES 3
to
# define NR_FRAMES 2
and rebuild driver. Viewers will work almost fine with this value.
By the way, how many memory in your system? If you use small memory
system, you may need to increase memory because bt848x requires 2700KB
as DMA buffer, this is considered _huge_ in kernel space. (My PC has
128~256MB memory and I can run bt848x driver on it)
It really works !!! Thank You very much for driver and help !!!