Re: Plextor DMA problem on Linux
>From: Helmut Jarausch <jarausch@igpm.rwth-aachen.de>
>I've a puzzling problem and hope someone's experience
>can help me.
>I have quite a recent Plextor 48/24/48 burner attached to my Linux
>system (currently 2.4.23-rc2)
>This drive has been running initially with my kernel which enables
>DMA by default.
>Now I cannot use the drive anymore under such a kernel.
>readcd dev=0,1,0 -f /dev/null works but that's special cased since
>readcd dev=0,1,0 -f - | cat >/dev/null DOESN'T work and even
>a normal 'mount' doesn't work. Always, I see a DMA timeout error on
>kern.log.
If you don't tell us what happens when you run readcd dev=0,1,0 -f - | cat
>/dev/null, there is few I can do.
It leads towards a defective sheduler in the kernel?
Jörg
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EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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