Hello, Running kernel 2.6.20.1 Controller vt8251 Harddisks: sda Seagate Barracuda ES (ST3400620NS) SATA2 hdc Seagate ST3160021A IDE hdd ATAPI-CD ROM-DRIVE-56MAX That configuration runs correctly. Now I turns a Seagate Barracuda 7200.9 (ST3808110AS) on: Dmesg: Mar 6 13:17:55 server ata3: exception Emask 0x10 SAct 0x0 SErr 0x4060000 action 0x2 frozen Mar 6 13:17:55 server ata3: (irq_stat 0x00000040, connection status changed) Mar 6 13:17:55 server ata3: waiting for device to spin up (8 secs) Mar 6 13:18:03 server ata3: hard resetting port Mar 6 13:18:03 server ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Mar 6 13:18:03 server ata3.00: ATA-7, max UDMA/133, 156301488 sectors: LBA48 NCQ (depth 0/32) Mar 6 13:18:03 server ata3.00: configured for UDMA/133 Mar 6 13:18:03 server ata3: EH complete Mar 6 13:18:03 server scsi 2:0:0:0: Direct-Access ATA ST3808110AS 3.AA PQ: 0 ANSI: 5 Mar 6 13:18:03 server SCSI device sdb: 156301488 512-byte hdwr sectors (80026 MB) Mar 6 13:18:03 server sdb: Write Protect is off Mar 6 13:18:03 server sdb: Mode Sense: 00 3a 00 00 Mar 6 13:18:03 server SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Mar 6 13:18:03 server SCSI device sdb: 156301488 512-byte hdwr sectors (80026 MB) Mar 6 13:18:03 server sdb: Write Protect is off Mar 6 13:18:03 server sdb: Mode Sense: 00 3a 00 00 Mar 6 13:18:03 server SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Mar 6 13:18:04 server sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 > Mar 6 13:18:04 server sd 2:0:0:0: Attached scsi disk sdb Mar 6 13:18:04 server sd 2:0:0:0: Attached scsi generic sg1 type 0 Mar 6 13:18:29 server ata3: exception Emask 0x10 SAct 0x0 SErr 0x30000 action 0x2 frozen Mar 6 13:18:29 server ata3: (irq_stat 0x04400000, PHY RDY changed) Mar 6 13:18:30 server hdc: dma_timer_expiry: dma status == 0x61 Mar 6 13:18:31 server ata3: hard resetting port Mar 6 13:18:31 server ata3: SATA link down (SStatus 0 SControl 300) Mar 6 13:18:31 server ata3: failed to recover some devices, retrying in 5 secs Mar 6 13:18:37 server ata3: hard resetting port Mar 6 13:18:38 server ata3: SATA link down (SStatus 0 SControl 300) Mar 6 13:18:38 server ata3: failed to recover some devices, retrying in 5 secs Mar 6 13:18:40 server hdc: DMA timeout error Mar 6 13:18:40 server hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest } Mar 6 13:18:40 server ide: failed opcode was: unknown Mar 6 13:18:40 server hdc: status error: status=0x50 { DriveReady SeekComplete } Mar 6 13:18:40 server ide: failed opcode was: unknown Mar 6 13:18:40 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:18:40 server hdc: status timeout: status=0xd0 { Busy } Mar 6 13:18:40 server ide: failed opcode was: unknown Mar 6 13:18:40 server hdd: DMA disabled Mar 6 13:18:40 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:18:41 server ide1: reset: success Mar 6 13:18:43 server ata3: hard resetting port Mar 6 13:18:44 server ata3: SATA link down (SStatus 0 SControl 300) Mar 6 13:18:44 server ata3.00: disabled Mar 6 13:18:44 server ata3: EH complete Mar 6 13:18:44 server ata3.00: detaching (SCSI 2:0:0:0) Mar 6 13:18:44 server Synchronizing SCSI cache for disk sdb: Mar 6 13:18:44 server FAILED Mar 6 13:18:44 server status = 0, message = 00, host = 4, driver = 00 Mar 6 13:18:47 server login(pam_unix)[6667]: session opened for user root by (uid=0) Mar 6 13:18:47 server login[6789]: ROOT LOGIN on 'tty2' Mar 6 13:18:52 server shutdown[6792]: shutting down for system reboot Mar 6 13:19:01 server <4>hdc: dma_timer_expiry: dma status == 0x21 Mar 6 13:19:11 server hdc: DMA timeout error Mar 6 13:19:11 server hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest } Mar 6 13:19:11 server ide: failed opcode was: unknown Mar 6 13:19:11 server hdc: status error: status=0x50 { DriveReady SeekComplete } Mar 6 13:19:11 server ide: failed opcode was: unknown Mar 6 13:19:11 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:19:11 server hdc: status timeout: status=0xd0 { Busy } Mar 6 13:19:11 server ide: failed opcode was: unknown Mar 6 13:19:11 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:19:11 server ide1: reset: success Mar 6 13:19:31 server hdc: dma_timer_expiry: dma status == 0x21 Mar 6 13:19:41 server hdc: DMA timeout error Mar 6 13:19:41 server hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest } Mar 6 13:19:41 server ide: failed opcode was: unknown Mar 6 13:19:41 server hdc: status error: status=0x50 { DriveReady SeekComplete } Mar 6 13:19:41 server ide: failed opcode was: unknown Mar 6 13:19:41 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:19:41 server hdc: status timeout: status=0xd0 { Busy } Mar 6 13:19:41 server ide: failed opcode was: unknown Mar 6 13:19:41 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:19:41 server ide1: reset: success <snip deamon log> Mar 6 13:20:01 server hdc: dma_timer_expiry: dma status == 0x21 <snip deamon log> Mar 6 13:20:12 server hdc: DMA timeout error Mar 6 13:20:12 server hdc: dma timeout error: status=0x58 { DriveReady SeekComplete DataRequest } Mar 6 13:20:12 server ide: failed opcode was: unknown Mar 6 13:20:12 server hdc: status error: status=0x50 { DriveReady SeekComplete } Mar 6 13:20:12 server ide: failed opcode was: unknown Mar 6 13:20:12 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:20:12 server hdc: status timeout: status=0xd0 { Busy } Mar 6 13:20:12 server ide: failed opcode was: unknown Mar 6 13:20:12 server ide: failed opcode was: unknown Mar 6 13:20:12 server hdc: no DRQ after issuing MULTWRITE_EXT Mar 6 13:20:12 server ide1: reset: success As you see, when I turned on the Barracuda 7200.9 drive the ide channel will not work correctly. This also happens when I turned on the Barracuda ES drive. It doesn't sense setting the jumper on the drive on 1,5 Gb/s operation. This happens not with the Maxtor drive and a Barracuda 7200.10 drive I have. Aalderd. - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html