[ivtv-devel] IVTV_IRQ_DEC_DMA_ERR

Jack Trout witmore1 at gmail.com
Tue Feb 21 06:07:39 CET 2006


On 2/20/06, Maksym Veremeyenko <verem at m1stereo.tv> wrote:
>
> Connecting USB flash device cause DMA error:
>
> Feb 21 02:13:49 dev-2 kernel: usb 1-1: new full speed USB device using
> uhci_hcd and address 2
> Feb 21 02:13:49 dev-2 kernel: ivtv0 warning: IRQ: IVTV_IRQ_DEC_DMA_ERR
> Feb 21 02:13:49 dev-2 kernel: ivtv0 warning: IRQ: IVTV_IRQ_DEC_DMA_ERR
> Feb 21 02:13:51 dev-2 kernel: SCSI subsystem initialized
> Feb 21 02:13:51 dev-2 kernel: Initializing USB Mass Storage driver...
>
> i use kernel 2.6.15.1 with ivtv trunk rev 3149



I got this error when I had my pvr250 sharing an IRQ with my other devices,
I only was able to fix it by moving the card slots the cards they were place
in to different slots, and then assigning those slots unused IRQs, probably
means your usb bus assigns the flash drive the same irq as your card
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