linux-kernel - Re: 2.6.19-rc1 regression: unable to read dvd's

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Message-ID: <874pu94gcd.fsf@sycorax.lbl.gov>
Date:	Thu, 12 Oct 2006 10:02:58 -0700
From:	Alex Romosan <romosan@...orax.lbl.gov>
To:	Mike Galbraith <efault@....de>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org,
	olaf@...fle.de
Subject: Re: 2.6.19-rc1 regression: unable to read dvd's

Mike Galbraith <efault@....de> writes:

> On Thu, 2006-10-12 at 08:47 -0700, Alex Romosan wrote:
>> Jens Axboe <jens.axboe@...cle.com> writes:
>> 
>> > Argh damn, it needs this on top of it as well. Your second problem
>> > likely stems from that missing bit, please retest with this one applied
>> > as well.
>> >
>> > diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
>> > index e7513e5..bddfebd 100644
>> > --- a/drivers/ide/ide-cd.c
>> > +++ b/drivers/ide/ide-cd.c
>> > @@ -716,7 +716,7 @@ static int cdrom_decode_status(ide_drive
>> >  		ide_error(drive, "request sense failure", stat);
>> >  		return 1;
>> >  
>> > -	} else if (blk_pc_request(rq)) {
>> > +	} else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) {
>> >  		/* All other functions, except for READ. */
>> >  		unsigned long flags;
>> >  
>> 
>> no more strange messages but, once again, i am not able to read movie
>> dvd's with the above patch applied.
>
> Hmm.  Xine still works fine here.
>
> I tried starting xine with no dvd in the drive for grins, and _without_
> this patch, I had to resort to SysRq-E to regain control of my box, and
> that still took quite a while.  I got no oops, but a zillion IO retries
> and sector blah messages.  DoSed me bigtime.  With this patch, I just
> got the expected can't open failure.

works fine for me too as i said in my next message (i initially forgot
to put the dvd in the drive). i guess this is what happens when i try
to test things before my morning espresso...

--alex--

-- 
| I believe the moment is at hand when, by a paranoiac and active |
|  advance of the mind, it will be possible (simultaneously with  |
|  automatism and other passive states) to systematize confusion  |
|  and thus to help to discredit completely the world of reality. |
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