Tejun, I've been having good success using your patches from late September with a sil3124 pcix sata controller connected to 4 drives. Ive added another PM and 4 more drives and connected to port 2 on the card. However on these 4 additional drives I consistently get these errors when doing any disk IO (reading or write) (no errors on the first 4 drives of which all 8 part of a single software raid array). Ive tried 2 new eSATA cables, reseated the drives, etc, with no luck. Any ideas? Thanks, Jon ata2.15: exception Emask 0x100 SAct 0x0 SErr 0x200000 action 0x6 frozen ata2.15: irq_stat 0x02020002, PMP DMA CS errata ata2.00: exception Emask 0x0 SAct 0x48 SErr 0x0 action 0x2 frozen ata2.01: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x2 frozen ata2.02: exception Emask 0x1 SAct 0x1 SErr 0x0 action 0x2 frozen ata2.02: irq_stat 0x02020002, device error via SDB FIS ata2.02: cmd 60/50:00:6f:5b:02/00:00:00:00:00/40 tag 0 cdb 0x0 data 40960 in res 50/00:00:00:00:00/00:00:00:00:00/00 Emask 0x1 (device error) ata2.03: exception Emask 0x0 SAct 0x10 SErr 0x0 action 0x2 frozen ata2.15: hard resetting link ata2: controller in dubious state, performing PORT_RST ata2.15: SATA link up 3.0 Gbps (SStatus 123 SControl 0) ata2.00: hard resetting link ata2.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.01: hard resetting link ata2.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.02: hard resetting link ata2.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.03: hard resetting link ata2.03: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.04: hard resetting link ata2.04: SATA link down (SStatus 0 SControl 300) ata2.05: hard resetting link ata2.05: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata2.00: configured for UDMA/100 ata2.01: configured for UDMA/100 ata2.02: configured for UDMA/100 ata2.03: configured for UDMA/100 ata2: EH complete sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA ata2.00: exception Emask 0x0 SAct 0x20 SErr 0x0 action 0x0 ata2.02: exception Emask 0x0 SAct 0x8 SErr 0x380000 action 0x2 ata2.02: irq_stat 0x02020002, device error via SDB FIS ata2.02: cmd 60/78:18:47:6f:76/00:00:00:00:00/40 tag 3 cdb 0x0 data 61440 in res 41/84:07:b8:6f:76/00:00:00:00:00/40 Emask 0x410 (ATA bus error) <F> ata2.02: soft resetting link ata2.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.02: configured for UDMA/100 ata2: EH complete sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA ata2.02: exception Emask 0x0 SAct 0x80 SErr 0x380000 action 0x2 ata2.02: irq_stat 0x02020002, device error via SDB FIS ata2.02: cmd 60/80:38:3f:78:77/00:00:00:00:00/40 tag 7 cdb 0x0 data 65536 in res 41/84:6f:50:78:77/00:00:00:00:00/40 Emask 0x410 (ATA bus error) <F> ata2.02: soft resetting link ata2.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.02: configured for UDMA/100 ata2: EH complete sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA ata2.02: exception Emask 0x0 SAct 0x77060000 SErr 0x380000 action 0x2 ata2.02: irq_stat 0x02020002, device error via SDB FIS ata2.02: cmd 60/08:e0:7f:05:77/00:00:00:00:00/40 tag 28 cdb 0x0 data 4096 in res 41/84:00:86:05:77/00:00:00:00:00/40 Emask 0x410 (ATA bus error) <F> ata2.02: soft resetting link ata2.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.02: configured for UDMA/100 ata2: EH complete sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA ata2.02: limiting SATA link speed to 1.5 Gbps ata2.02: exception Emask 0x0 SAct 0x6 SErr 0x380000 action 0x6 ata2.02: irq_stat 0x02020002, device error via SDB FIS ata2.02: cmd 60/80:10:bf:54:79/00:00:00:00:00/40 tag 2 cdb 0x0 data 65536 in res 41/84:0f:30:55:79/0c:00:00:00:00/40 Emask 0x410 (ATA bus error) <F> ata2.02: hard resetting link ata2.02: SATA link up 1.5 Gbps (SStatus 113 SControl 310) ata2.02: configured for UDMA/100 ata2: EH complete sd 1:0:0:0: [sde] 976773168 512-byte hardware sectors (500108 MB) sd 1:0:0:0: [sde] Write Protect is off sd 1:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 1:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:1:0:0: [sdf] 976773168 512-byte hardware sectors (500108 MB) sd 1:1:0:0: [sdf] Write Protect is off sd 1:1:0:0: [sdf] Mode Sense: 00 3a 00 00 sd 1:1:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:2:0:0: [sdg] 976773168 512-byte hardware sectors (500108 MB) sd 1:2:0:0: [sdg] Write Protect is off sd 1:2:0:0: [sdg] Mode Sense: 00 3a 00 00 sd 1:2:0:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 1:3:0:0: [sdh] 976773168 512-byte hardware sectors (500108 MB) sd 1:3:0:0: [sdh] Write Protect is off sd 1:3:0:0: [sdh] Mode Sense: 00 3a 00 00 sd 1:3:0:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA - 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