On Sat, Apr 15 2000, Gérard Roudier wrote:
> > Trying to do a DVD_AUTH ioctl I get a SCSI command timeout and after
> > that a bus reset (see below) beginning with kernel 2.3.99-pre1 through
> > -pre5 . It works without a problem in kernel 2.2.14 and 2.3.51.
>
> What has changed in recent linux SCSI (and PCI related) is that the kernel
> allows applications to provide the data direction and requires low-level
> drivers to check that data is transferred in the right direction. The
> ncr53c8xx driver may lock up when actual data direction is wrong, but the
> sym53c8xx will gracefully eat the wrong data, throw them away, and report
> an error.
The command issues is REPORT_KEY and the data direction has been set
by the Uniform CD-ROM layer. So I don't think that is the problem.
-- * Jens Axboe <axboe@suse.de> * Linux CD/DVD-ROM, SuSE Labs * http://kernel.dk- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sat Apr 15 2000 - 21:00:26 EST