Re: Core scsi layer crashes in 2.6.8.1

James Bottomley
2004-10-05T16:07:46Z

On Tue, 2004-10-05 at 11:01, Oliver Neukum wrote:
> Why is it in any way difficult to decide whether to issue a command in the
> first place? The command is generated upon being notified by the lower layer.
> There is no issue of synchronisation here. It is simply stupid to give
> commands that are bound to fail, if the information is already available.

a) we don't know that they are ... for notified ejection they will
succeed.

b) The scsi bus is a scanned model ... drivers must be prepared to
accept commands for non-existent devices. How does the removal case
differ from the never present case?

James