Re: strange interaction between IDE and ieee1394 driver

From: Meelis Roos (mroos@linux.ee)
Date: Mon Nov 20 2000 - 15:36:24 EST

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AS> When I user the ieee1394 subsystem to transmit data from a camcorder to an
AS> IDE disk and the IDE driver is not using DMA, then there will be some data
AS> lost in the ieee1394 driver. If I turn on DMA in the IDE driver (hdparm -d1
AS> /dev/hda), I do not have any data loss in the ieee1394 driver. Also, on a

IDE is blocking interrupts for too long in non-DMA mode? Try hdparm -u 1
in non-dma mode - this may help if interrupt latency is the issue.

-- 
Meelis Roos (mroos@linux.ee)
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Next message: Brian 'fief' De Smet: "Promise Ultra66 boot troubles (lost interrupt and waiting for DMA timeout)"
Previous message: Horst von Brand: "Re: Defective Red Hat Distribution poorly represents Linux"
In reply to: Arne Schirmacher: "strange interaction between IDE and ieee1394 driver"
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