Re: BUG: CD driver sends command during host removal

Mike Anderson
2004-09-29T20:31:28Z

James Bottomley [James.Bottomley@SteelEye.com] wrote:
> Once you've called scsi_remove_host() the mid-layer will take control of
> your in-flight commands (if there are any) and error them back to the
> user. You need to take any actions to clean up internal structures
> belonging to the commands *before* you do a scsi_remove_host.
>

How do we address the problem we get into with the reordering in
scsi_remove_host (i.e. the call to scsi_forget_host prior to
scsi_host_cancel) if we possibly generate new io from sd_sync_cache
that will cause the error handler to fire up if the LLDD just lets the
command fall on the floor with no response.

-andmike
--
Michael Anderson
andmike@us.ibm.com