Re: PROBLEM REMAINS: [sata_nv ADMA breaks ATAPI] Crash on accessing DVD-RAM

Robert Hancock
2008-01-12T19:26:06Z

Alexander wrote:
> Robert Hancock wrote:
>> There's this patch which was intended to fix it:
>>
>> http://lkml.org/lkml/2007/11/22/148
>
> I applied this patch to 2.6.24-rc7. Now at boot time my DVD-RW is
> normaly detected as:
>
> sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray
>
> But I cannot mount it. All my attempts failed with
>
> ISOFS: Unable to identify CD-ROM format.
>
> With mem<=4098M or sata_nv.adma=0 it still mounts and works ok.

As I wrote, it would appear that somehow the blk_queue_bounce_limit
setting that the driver has made is not being respected and the block
layer is still trying to feed it addresses over 4GB. Any ideas anyone?