Date: Sun, 25 Sep 2005 17:28:25 +0300
From: Ville Herva <vherva@vianova.fi>
To: Simon Strandman <simon.strandman@telia.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Upgrade 2.6.12-rc4 -> 2.6.13.1 broke DVD-R writing (fails consistenly in OPC phase)
Message-ID: <20050925142825.GB24742@viasys.com>
Reply-To: vherva@vianova.fi
References: <20050925123049.GA24760@viasys.com> <43369C2F.3050201@telia.com> <20050925130436.GD24719@viasys.com>
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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 ?.
> > >
> > >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.


-- v -- 

v@iki.fi

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