[MPlayer-DOCS] Some points for cd-dvd.xml

Jan Knutar jknutar at nic.fi
Thu Feb 17 02:01:08 CET 2005


On Thursday 17 February 2005 02:57, D Richard Felker III wrote:

> nope. another kernel bug: even if you use -k, dma will get disabled
> whenever there are io errors, even though these errors are, of course,
> caused by scratched media, not by anything related to dma. it's very
> evil. whoever put this broken crap in the kernel should be run over
> with an 18-wheeler full of cola.

Atleast it's somewhat better now than it used to be.

Someone calculated that before, by the amount of times Linux retried
a bad sector read, it would've taken a few hundred years to read a badly
scratched CD. It was retrying each broken sector a few hundred times,
and the drive firmware was trying it for 10 seconds itself too before giving
up....

But that's supposedly fixed now ... 




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