Re: NEC ND-4550A problems reading DVD-R

[Stephen Clark]

On 03/01/2011 08:48 AM, Mark Lord wrote:
> On 11-03-01 03:01 AM, Tejun Heo wrote:
> ..
>    
> > I think that's determined by drivers/scsi/sr.h::SR_TIMEOUT which is
> > hardcoded to be 30 seconds.  Maybe it's better to move it to use the
> > block parameter.  Anyways, the drive actually takes longer than 30secs
> > to recognize the media?
> >      
> That slow behaviour is not uncommon, especially as drives struggle
> to recognize various forms of copy-protected media (DVD-Video).
> A longer default, or tuneable timeout, would help.
>
> Cheers
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>
>    
I agree with Mark, this should be a user tuneable value. My 2006 LG 
dvd-rw frequently times out
trying to identify the media. But after numerous timeout error messages 
it usually suceeds.

--

"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety."  (Ben Franklin)

"The course of history shows that as a government grows, liberty
decreases."  (Thomas Jefferson)



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/