On Thu, 02 Mar 2006, Douglas Gilbert wrote: > In 8 years of maintaining the sg driver I cannot remember > anybody contacting me regarding the way the sg driver ignored > the DISABLE_CLUSTERING flag; that was until Mike Christie raised > it yesterday with regard to iscsi_tcp ***. Gerard's post from > 2000 implied clustering was not a problem with U160 (SPI-3) > so perhaps it was for SPI-2 (1998) or SPI (1995) or SCSI-2 (1993). > If so those are pretty old symbios controllers. Why would any > storage manufacturer make a DMA element that was restricted > to Intel's i386 page size per transfer? Well, second-hand hardware like that isn't too uncommon for backups, U2W adaptors such as Tekram DC-390U2B/U2W (SYM53C895) can be had for a song, and so can U2W tape drives (Tandberg SLR6/SLR24, SLR32, SLR7). On the other hand, it's not like people would update their backup host kernels every week either, so the pain would spread slowly before becoming really prominent. (dropped linux-kernel@ from the cc: list, linux-scsi@ should be sufficient) -- Matthias Andree - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
