Jack Trout пишет:
> 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 <http://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
usb do not share IRQ with ivtv:
[EMAIL PROTECTED] ~]# cat /proc/interrupts
CPU0
0: 16534161 XT-PIC timer
1: 48 XT-PIC i8042
2: 0 XT-PIC cascade
8: 1 XT-PIC rtc
9: 6266144 XT-PIC ide3, ivtv0
10: 361 XT-PIC uhci_hcd:usb1
11: 5524375 XT-PIC eth0, [EMAIL PROTECTED]:0000:01:00.0, matroxfb
12: 138 XT-PIC i8042
14: 447180 XT-PIC ide0
15: 86 XT-PIC ide1
NMI: 0
ERR: 0
ide3 activity do not fails ivtv working...
--
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Maksym Veremeyenko
Senior System Administrator
IT Department
Ukrainian Music Television Channel "M1"
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Tel. +380 44 205-44-80
Fax. +380 44 205-44-82
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