2.6.14-rc4: broken DVD-R recording [Re: Upgrade 2.6.12-rc4 -> 2.6.13.1 broke DVD-R writing (fails consistently in OPC phase)]

[Ville Herva <vherva@vianova.fi>]

On Sun, Sep 25, 2005 at 05:28:25PM +0300, you [Ville Herva] wrote:
> On Sun, Sep 25, 2005 at 04:04:36PM +0300, you [Ville Herva] wrote:
> > On Sun, Sep 25, 2005 at 02:46:39PM +0200, you [Simon Strandman] wrote:
> > > Ville Herva skrev:
> > > 
> > > >The .config from 2.6.12-rc4 and 2.6.13.1 is nearly identical, but with
> > > >2.6.13.1 I use HZ=250 (that being the default nowadays) and 
> > > >2.6.13.1 has CONFIG_PREEMPT_VOLUNTARY=y instead of 2.6.12-rc4's
> > > >CONFIG_PREEMPT=y and CONFIG_PREEMPT_BKL=y ².
> > > >
> > > >Any ideas?
> > >
> > > Have you tried with HZ=1000?
> > 
> > No yet. 
> > 
> > I did see the HZ=250 problem wrt DVD recording thread earlier, but I got the
> > impression it had to do with not being able to supply data fast enough to
> > the drive. 
> > 
> > In my case, it fails before it even write a single byte to the disc.
> > (Fortunately it means it doesn't ruin the disc each time I try to write.)
> 
> Recompiled the same 2.6.13.1 kernel with HZ=1000. DVD-R writing still fails
> with the exact same error.

Still happens with 2.6.14-rc4.

Peter Österlund's suggestion to kill hald and kded in the pktcdvd thread did
not help either. This is a Fedora rawhide installation, though.



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