Matthew Wilcox wrote: > None of the other domain validation messages have a trailing full stop, > so I don't see why this one should. Speaking of domain validation messages I have noticed that either the sym53c8xx driver or scsi_transport_spi is getting noisier in this area. After "hot plugging" a U160 disk on a unpopulated bus and then scanning the bus there was lots of redundant noise on my console and log. The disk had autospin off so a START STOP UNIT command was needed followed by a wait for the disk to spin up. This is what I saw in my log after: # echo 1 > /sys/class/scsi_host/host0/scan Vendor: FUJITSU Model: MAM3184MP Rev: 0106 Type: Direct-Access ANSI SCSI revision: 03 target0:0:3: tagged command queuing enabled, command queue depth 16. target0:0:3: Beginning Domain Validation target0:0:3: asynchronous. target0:0:3: wide asynchronous. target0:0:3: Domain Validation skipping write tests target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: Ending Domain Validation target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 2 times sdb: Spinning up disk....<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .<6> target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) target0:0:3: FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62) last message repeated 7 times .ready SCSI device sdb: 35885344 512-byte hdwr sectors (18373 MB) SCSI device sdb: drive cache: write back SCSI device sdb: 35885344 512-byte hdwr sectors (18373 MB) SCSI device sdb: drive cache: write back sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 > sd 0:0:3:0: Attached scsi disk sdb Surely one "FAST-80 WIDE SCSI 160.0 MB/s DT (12.5 ns, offset 62)" message is sufficient? The READ CAPACITY/fetching the caching mode page sequence seems to be occurring twice. I also see this with scsi_debug so it isn't a spi or lldd problem. Doug Gilbert - : 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