Re: Recent 2.6 kernels can't read an entire ATAPI CD or DVD

[Jens Axboe <axboe@suse.de>]

On Wed, Jul 28 2004, Jens Axboe wrote:
> On Wed, Jul 28 2004, Arjan van de Ven wrote:
> > On Wed, Jul 28, 2004 at 03:52:28PM +0100, Dave Jones wrote:
> > > On Wed, Jul 28, 2004 at 08:53:19AM +0200, Jens Axboe wrote:
> > >  > On Wed, Jul 28 2004, Edward Angelo Dayao wrote:
> > >  > > yeah i get this kind of error in my logs as well from my liteon
> > >  > > dvd-rom at home. thats like 6 months old and happened on fc2 when i
> > >  > > had that installed on it. haven't noticed anything on mandrake 10 (the
> > >  > > current distro i use at home) with 2.6.7.
> > >  > > 
> > >  > > i got the same error on my old notebook, a compaq presario... that was
> > >  > > prior to the drive being sent to that big junk yard in the sky.  i
> > >  > > forget what model that was.  but i was running then...  rh9.
> > >  > > 
> > >  > > hope this bit helps guys resolve this. 
> > >  > 
> > >  > (dont top post!)
> > >  > 
> > >  > Sounds like something fc2 is doing, I'd suggest filing a bug report with
> > >  > them.
> > > 
> > > Curious. The relevant code should match mainline 1:1 there unless I'm
> > > mistaken. Arjan ?
> > 
> > we don't patch the ide layer, ide-cd or isofs... so really curious.
> 
> I meant that something from userspace is triggering these errors, it's
> not necessarily a kernel issue.

Sorry, I mixed up two different threads. On this thread, I agree it's
probably a kernel issue. Can you check what capacity isosize gives you
on the device, and what /proc/ide/hdc/capacity tells you?

-- 
Jens Axboe