kern/103602: drive gets wedged on READ CD CAPACITY if no disc is in

[Josh Carroll]

> Now it would be interesting to test whether the scsi_cd and cam_xpt
> changes are still required in your configuration, or whether they were
> just working around the real underlying issue.
>
> You'll find attached to this message a patch against RELENG_6
> atapi-cam.c (which includes the DMA fix and also a related error
> handling fix from kern/112119). Could you please test whether
> a kernel with:
>   - just this patch;
>   - this patch + the cam_xpt change (CAM_QUIRK_NOSERIAL)
> works for you?

Hi Thomas,

The patch alone works great! There was no need for the cam_xpt change,
nor the scsi_cd change. I was able to blank and burn a CD-RW with the
new kernel just fine with cdrecord.

Thanks,
Josh