Re: Problems with reading DVD using 2.6.21.5

Robert Hancock
2007-07-28T16:29:21Z

Manuel Reimer wrote:
> Hello,
>
> I tried to reproduce this bug by mounting/unmounting the drive several
> times.
>
> It seems like this problem is caused, if the drive is at speed 0 after
> some time without access. In this situation, sometimes the drive seems
> to take a bit longer to speed up. Whenever it takes a bit longer, I get
> the error in dmesg and parts of the mounted disc are unreadable...
>
> Any chance to get this debugged?

It's not entirely clear to me whether the kernel is doing any retries or
not. It likely should be, but somebody more familiar with the block
layer would likely have to answer whether it will be or not..

Certainly if we are already retrying and the drive keeps saying "no seek
complete" there's not much the kernel can do about it..

--
Robert Hancock Saskatoon, SK, Canada
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