rakesh rakesh wrote: > > Hi, > Does the sg driver in the lk-2.4 provide hooks to > issue device reset and bus reset.Or is the effort > going > on to incorporate it in the 2.5 ver. The sg driver has had the "hooks" to do SCSI bus resets since lk 2.2.14 . However those "hooks" are inoperable without a scsi mid level patch. lk 2.2 and 2.4 versions of that patch are available from the FAQ on the sg web site (and they have been posted to this list). Some linux distributions come with that mid level patch applied (e.g. RedHat 7.0). That mid level patch primarily addresses SCSI reservations and user initiated resets are required to break reservations in extreme situations. Concerns were raised that allowing users to do SCSI bus reset could interfere with normal error processing. I believe that the past reluctance to include that patch is now being reconsidered. More generally, there is currently a quite useful set of SCSI patches and fixes sitting (seemingly stranded) in Alan Cox's "ac" tree. Unfortunately only the most superficial of these seem to make it into the main kernel tree. The sooner the lk 2.5 tree starts the better :-) Doug Gilbert - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [EMAIL PROTECTED]
