Hi, I look after a server with a bunch of drives hooked up to two 8 port PCI-X sata cards, detected as above. The server was running 2.6.17.6 which has sata_mv version 0.7, which worked fine. I recently upgraded the kernel to 2.6.18 with version 1.24, and started getting ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen for several of the disks, and performance went through the floor because of multiple bus resets. Now, the system was running SMART monitoring, and in the course of some googling it was suggested that this perhaps was causing a timeout, however disabling the smartd made no difference. Reverting to 2.6.17.6 made the problem go away, suggesting something between 0.7 and 1.24 is causing some difficulty. Before I launch into trying to find out where in the interim the regression occurred, does anybody have any suggestions? Cheers, Eamonn System details : 00:00.0 Host bridge: Intel Corporation E7501 Memory Controller Hub (rev 01) 00:00.1 Class ff00: Intel Corporation E7500/E7501 Host RASUM Controller (rev 01) 00:03.0 PCI bridge: Intel Corporation E7500/E7501 Hub Interface C PCI-to-PCI Bridge (rev 01) 00:03.1 Class ff00: Intel Corporation E7500/E7501 Hub Interface C RASUM Controller (rev 01) 00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #1) (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #2) (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801CA/CAM USB (Hub #3) (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 42) 00:1f.0 ISA bridge: Intel Corporation 82801CA LPC Interface Controller (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801CA Ultra ATA Storage Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801CA/CAM SMBus Controller (rev 02) 01:04.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02) 01:0c.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) 02:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04) 02:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04) 02:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04) 02:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04) 03:02.0 SCSI storage controller: Marvell Technology Group Ltd. MV88SX5081 8-port SATA I PCI-X Controller (rev 03) 03:03.0 SCSI storage controller: Adaptec AIC-7901A U320 (rev 03) 04:02.0 SCSI storage controller: Marvell Technology Group Ltd. MV88SX5081 8-port SATA I PCI-X Controller (rev 03) disks :Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.02 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400833AS Rev: 3.AA Type: Direct-Access ANSI SCSI revision: 05 Host: scsi2 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.02 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD4000YR-01P Rev: 01.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi5 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.02 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi8 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.06 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi10 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.03 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi11 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400620NS Rev: 3.AE Type: Direct-Access ANSI SCSI revision: 05 Host: scsi13 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3400832AS Rev: 3.03 Type: Direct-Access ANSI SCSI revision: 05 SAIC Limited is a private limited company registered in England and Wales. Registered number 1396396. Registered office at 120 New Cavendish Street, London, W1W 6XX. VAT number 599 5474 64. This e-mail and any attachments are private and confidential. If you are not the intended recipient of this e-mail, any disclosure, copying, distribution or use of its contents is strictly prohibited. Please notify the sender immediately and then delete it (including any attachments) from your system. All emails and attachments are virus scanned. It is your responsibility to ensure that any onward transmission, opening or use of this message and any attachments will not adversely affect your or the onward recipients' systems or data. Please carry out such virus and other such checks as you consider appropriate. SAIC Limited may monitor email traffic data and, also, the content of email for the purposes of security, staff training and compliance with SAIC policies. -- 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
