Date:	Wed, 22 Apr 2009 12:55:52 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Thomas Lange <lange@...embedded.com>
Cc:	linux-kernel@...r.kernel.org,
	"Darrick J. Wong" <djwong@...ibm.com>, linux-scsi@...r.kernel.org
Subject: Re: aic94xx driver very low writing speed on sata-discs

(cc's added)

On Fri, 17 Apr 2009 13:43:06 +0200
Thomas Lange <lange@...embedded.com> wrote:

> Dear kernel hackers,
> 
> there was nothing I could find about this problem, neither on the kernel
> nor the scsi mailing list., therefore I ask you for help.
> We have a couple of supermicro servers in our company that have adaptec
> aic94xx onboard, and there is the following issue that
> the aic94xx writing speed is very low for sata disks connected (whereas
> the reading speed is perfect).
> writing speed 5-6MB/s
> (tested with dd if=/dev/zero of=/dev/partition on aic9410w)
> reading speed: above 70MB/s
> (tested with dd if=/dev/partition of=/dev/zero on aic9410w)
> 
> system:
> dual xeon 2,8Ghz, Supermicro-MB x6da3-g2 with onboard adaptec aic9410w
> controller
> tested with opensuse 10.3, opensuse 11.0 and opensuse 11.1
> kernels are standard kernel opensuse 10.3/11.0/11.1 and vanilla-Kernel
> 2.6.25/2.6.29 from kernel.org
> 
> Another interesting observation is that the LED showing disc activity
> continuously glows as soon as the driver has been loaded and that it
> does not stop to glow from then on. Also the hard disks connected to the
> aic9410w are not recognized every time after booting the system. In most
> cases a second boot resolves the issue. Needles to say, but with other
> operating sytem there is no such problem (i.e. hardware is okay).
> 
> I send the relevant output information of the aic94xx driver with this
> mail, if you need more information I would be most happy to help out
> with further testing the issue.
> Please CC answers to this post to me (langeATjc-embedded.com) as I'm not
> in the kernel-list.
> Thanks for any help,
> Regards
> 
> Thomas
> 
> 
> 
> Attachments
> ========
> 
> 
> output from boot.msg:
> 
> Inspecting /boot/System.map
> Loaded 34118 symbols from /boot/System.map.
> Symbols match kernel version 2.6.25.
> No module symbols loaded - kernel modules not enabled.
> 
> 5>aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.3 loaded
> <7>bus: 'pci': add driver aic94xx
> <7>device: 'event4': device_add
> <7>PM: Adding info for No Bus:event4
> <6>ACPI: Power Button (CM) [PWRB]
> <7>driver: 'PNP0C0C:00': driver_bound: bound to device 'button'
> <7>bus: 'acpi': really_probe: bound device PNP0C0C:00 to driver button
> <7>driver: '2-0:1.0': driver_bound: bound to device 'hub'
> <7>bus: 'usb': really_probe: bound device 2-0:1.0 to driver hub
> <7>device: 'usbdev2.1_ep81': device_add
> <7>PM: Adding info for No Bus:usbdev2.1_ep81
> <7>device: 'usbdev2.1': device_add
> <7>PM: Adding info for No Bus:usbdev2.1
> <7>driver: 'usb2': driver_bound: bound to device 'usb'
> <7>bus: 'usb': really_probe: bound device usb2 to driver usb
> <7>driver: '0000:00:1d.1': driver_bound: bound to device 'uhci_hcd'
> <7>bus: 'pci': really_probe: bound device 0000:00:1d.1 to driver uhci_hcd
> <7>bus: 'pci': driver_probe_device: matched device 0000:00:1d.2 with
> driver uhci_hcd
> <7>bus: 'pci': really_probe: probing driver uhci_hcd with device
> 0000:00:1d.2
> <6>ACPI: PCI Interrupt 0000:00:1d.2[C] -> <7>parport_pc 00:0d: driver
> attached
> <7>driver: '00:0d': driver_bound: bound to device 'parport_pc'
> <7>bus: 'pnp': really_probe: bound device 00:0d to driver parport_pc
> <7>Registering platform device 'parport_pc.956'. Parent at platform
> <7>device: 'parport_pc.956': device_add
> <7>PM: Adding info for platform:parport_pc.956
> <7>bus: 'platform': add device parport_pc.956
> <7>bus: 'platform': driver_probe_device: matched device parport_pc.956
> with driver parport_pc
> <7>bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.956
> <7>driver: 'parport_pc.956': driver_bound: bound to device 'parport_pc'
> <7>bus: 'platform': really_probe: bound device parport_pc.956 to driver
> parport_pc
> <7>PM: Removing info for platform:parport_pc.956
> <7>bus: 'platform': remove device parport_pc.956
> <7>Registering platform device 'parport_pc.888'. Parent at platform
> <7>device: 'parport_pc.888': device_add
> <7>PM: Adding info for platform:parport_pc.888
> <7>bus: 'platform': add device parport_pc.888
> <7>bus: 'platform': driver_probe_device: matched device parport_pc.888
> with driver parport_pc
> <7>bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.888
> <7>driver: 'parport_pc.888': driver_bound: bound to device 'parport_pc'
> <7>bus: 'platform': really_probe: bound device parport_pc.888 to driver
> parport_pc
> <7>PM: Removing info for platform:parport_pc.888
> <7>bus: 'platform': remove device parport_pc.888
> <7>Registering platform device 'parport_pc.632'. Parent at platform
> <7>device: 'parport_pc.632': device_add
> <7>PM: Adding info for platform:parport_pc.632
> <7>bus: 'platform': add device parport_pc.632
> <7>bus: 'platform': driver_probe_device: matched device parport_pc.632
> with driver parport_pc
> <7>bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.632
> <7>driver: 'parport_pc.632': driver_bound: bound to device 'parport_pc'
> <7>bus: 'platform': really_probe: bound device parport_pc.632 to driver
> parport_pc
> <7>PM: Removing info for platform:parport_pc.632
> <7>bus: 'platform': remove device parport_pc.632
> <7>bus: 'pci': add driver parport_pc
> <4>GSI 18 (level, low) -> IRQ 18
> <7>PCI: Setting latency timer of device 0000:00:1d.2 to 64
> <6>uhci_hcd 0000:00:1d.2: UHCI Host Controller
> <7>device: 'usb_host3': device_add
> <7>bus: 'i2c': add driver tveeprom
> <7>PM: Adding info for No Bus:usb_host3
> <6>uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
> <6>uhci_hcd 0000:00:1d.2: irq 18, io base 0x00001440
> <7>device: 'usb3': device_add
> <7>PM: Adding info for usb:usb3
> <7>bus: 'usb': add device usb3
> <7>bus: 'usb': driver_probe_device: matched device usb3 with driver usb
> <7>bus: 'usb': really_probe: probing driver usb with device usb3
> <7>device: 'usbdev3.1_ep00': device_add
> <7>PM: Adding info for No Bus:usbdev3.1_ep00
> <6>usb usb3: configuration #1 chosen from 1 choice
> <7>device: '3-0:1.0': device_add
> <7>PM: Adding info for usb:3-0:1.0
> <7>bus: 'usb': add device 3-0:1.0
> <7>bus: 'usb': driver_probe_device: matched device 3-0:1.0 with driver hub
> <7>bus: 'usb': really_probe: probing driver hub with device 3-0:1.0
> <6>hub 3-0:1.0: USB hub found
> <6>hub 3-0:1.0: 2 ports detected
> <7>bus: 'pci': add driver Emu10k1_gameport
> <7>bus: 'acpi': add driver thermal
> <7>bus: 'acpi': driver_probe_device: matched device LNXTHERM:00 with
> driver thermal
> <7>bus: 'acpi': really_probe: probing driver thermal with device LNXTHERM:00
> <7>device class 'ppdev': registering
> <7>device: 'parport0': device_add
> <7>PM: Adding info for No Bus:parport0
> <6>ppdev: user-space parallel port driver
> <7>driver: '3-0:1.0': driver_bound: bound to device 'hub'
> <7>bus: 'usb': really_probe: bound device 3-0:1.0 to driver hub
> <7>device: 'usbdev3.1_ep81': device_add
> <7>PM: Adding info for No Bus:usbdev3.1_ep81
> <7>device: 'usbdev3.1': device_add
> <7>PM: Adding info for No Bus:usbdev3.1
> <7>driver: 'usb3': driver_bound: bound to device 'usb'
> <7>bus: 'usb': really_probe: bound device usb3 to driver usb
> <7>driver: '0000:00:1d.2': driver_bound: bound to device 'uhci_hcd'
> <7>bus: 'pci': really_probe: bound device 0000:00:1d.2 to driver uhci_hcd
> <7>bus: 'pci': driver_probe_device: matched device 0000:00:1d.3 with
> driver uhci_hcd
> <7>bus: 'pci': really_probe: probing driver uhci_hcd with device
> 0000:00:1d.3
> <6>ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 16 (level, low) -> IRQ 16
> <7>PCI: Setting latency timer of device 0000:00:1d.3 to 64
> <6>uhci_hcd 0000:00:1d.3: UHCI Host Controller
> <7>device: 'usb_host4': device_add
> <7>PM: Adding info for No Bus:usb_host4
> <6>uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
> <6>uhci_hcd 0000:00:1d.3: irq 16, io base 0x00001460
> <7>device: 'usb4': device_add
> <7>PM: Adding info for usb:usb4
> <7>bus: 'usb': add device usb4
> <7>bus: 'usb': driver_probe_device: matched device usb4 with driver usb
> <7>bus: 'usb': really_probe: probing driver usb with device usb4
> <7>device: 'usbdev4.1_ep00': device_add
> <7>PM: Adding info for No Bus:usbdev4.1_ep00
> <6>usb usb4: configuration #1 chosen from 1 choice
> <7>device: '4-0:1.0': device_add
> <6>usb 2-2: new full speed USB device using uhci_hcd and address 2
> <7>PM: Adding info for usb:4-0:1.0
> <7>bus: 'usb': add device 4-0:1.0
> <7>bus: 'usb': driver_probe_device: matched device 4-0:1.0 with driver hub
> <7>bus: 'usb': really_probe: probing driver hub with device 4-0:1.0
> <6>hub 4-0:1.0: USB hub found
> <6>hub 4-0:1.0: 2 ports detected
> <7>driver: '4-0:1.0': driver_bound: bound to device 'hub'
> <7>bus: 'usb': really_probe: bound device 4-0:1.0 to driver hub
> <7>device: 'usbdev4.1_ep81': device_add
> <7>PM: Adding info for No Bus:usbdev4.1_ep81
> <7>device: 'usbdev4.1': device_add
> <7>PM: Adding info for No Bus:usbdev4.1
> <7>driver: 'usb4': driver_bound: bound to device 'usb'
> <7>bus: 'usb': really_probe: bound device usb4 to driver usb
> <7>driver: '0000:00:1d.3': driver_bound: bound to device 'uhci_hcd'
> <7>bus: 'pci': really_probe: bound device 0000:00:1d.3 to driver uhci_hcd
> <7>bus: 'pci': driver_probe_device: matched device 0000:00:1d.7 with
> driver ehci_hcd
> <7>bus: 'pci': driver_probe_device: matched device 0000:03:03.2 with
> driver ohci1394
> <7>bus: 'pci': really_probe: probing driver ohci1394 with device
> 0000:03:03.2
> <7>bus: 'pci': really_probe: probing driver ehci_hcd with device
> 0000:00:1d.7
> <6>ACPI: PCI Interrupt 0000:03:03.2[B] -> <6>ACPI: PCI Interrupt
> 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
> <7>PCI: Setting latency timer of device 0000:00:1d.7 to 64
> <6>ehci_hcd 0000:00:1d.7: EHCI Host Controller
> <7>device: 'usb_host5': device_add
> <7>PM: Adding info for No Bus:usb_host5
> <6>ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
> <6>ehci_hcd 0000:00:1d.7: debug port 1
> <7>PCI: cache line size of 128 is not supported by device 0000:00:1d.7
> <6>ehci_hcd 0000:00:1d.7: irq 23, io mem 0xc8000000
> <3>usb 2-2: unable to read config index 0 descriptor/all
> <3>usb 2-2: can't read configurations, error -71
> <6>ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> <7>device: 'usb5': device_add
> <7>PM: Adding info for usb:usb5
> <7>bus: 'usb': add device usb5
> <7>bus: 'usb': driver_probe_device: matched device usb5 with driver usb
> <7>bus: 'usb': really_probe: probing driver usb with device usb5
> <7>device: 'usbdev5.1_ep00': device_add
> <7>PM: Adding info for No Bus:usbdev5.1_ep00
> <6>usb usb5: configuration #1 chosen from 1 choice
> <7>device: '5-0:1.0': device_add
> <7>PM: Adding info for usb:5-0:1.0
> <7>bus: 'usb': add device 5-0:1.0
> <7>bus: 'usb': driver_probe_device: matched device 5-0:1.0 with driver hub
> <7>bus: 'usb': really_probe: probing driver hub with device 5-0:1.0
> <6>hub 5-0:1.0: USB hub found
> <6>hub 5-0:1.0: 8 ports detected
> <3>hub 2-0:1.0: unable to enumerate USB device on port 2
> <4>nvidia: module license 'NVIDIA' taints kernel.
> <4>nvidia: no version for "agp_bind_memory" found: kernel tainted.
> <4>GSI 29 (level, low) -> IRQ 29
> <7>device: 'fw-host0': device_add
> <7>driver: '5-0:1.0': driver_bound: bound to device 'hub'
> <7>bus: 'usb': really_probe: bound device 5-0:1.0 to driver hub
> <7>PM: Adding info for ieee1394:fw-host0
> <7>bus: 'ieee1394': add device fw-host0
> <7>device: 'usbdev5.1_ep81': device_add
> <7>driver: 'fw-host0': driver_bound: bound to device 'nodemgr'
> <7>device: 'fw-host0': device_add
> <7>PM: Adding info for No Bus:usbdev5.1_ep81
> <7>PM: Adding info for No Bus:fw-host0
> <7>device: 'usbdev5.1': device_add
> <7>PM: Adding info for No Bus:usbdev5.1
> <7>driver: 'usb5': driver_bound: bound to device 'usb'
> <7>bus: 'usb': really_probe: bound device usb5 to driver usb
> <7>driver: '0000:00:1d.7': driver_bound: bound to device 'ehci_hcd'
> <7>bus: 'pci': really_probe: bound device 0000:00:1d.7 to driver ehci_hcd
> <7>bus: 'pci': add driver nvidia
> <6>ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[29]
> MMIO=[c8204000-c82047ff]  Max Packet=[2048]  IR/IT contexts=[4/8]
> <7>driver: '0000:03:03.2': driver_bound: bound to device 'ohci1394'
> <7>bus: 'pci': really_probe: bound device 0000:03:03.2 to driver ohci1394
> <7>bus: 'pci': driver_probe_device: matched device 0000:03:02.0 with
> driver aic94xx
> <7>bus: 'pci': really_probe: probing driver aic94xx with device 0000:03:02.0
> <6>ACPI: PCI Interrupt 0000:03:02.0[A] -> GSI 32 (level, low) -> IRQ 32
> <5>aic94xx: found Adaptec AIC-9410W SAS/SATA Host Adapter, device
> 0000:03:02.0
> <6>scsi10 : aic94xx
> <7>device: 'host10': device_add
> <7>PM: Adding info for No Bus:host10
> <7>CLASS: registering class device: ID = 'host10'
> <7>class_uevent - name = host10
> <7>CLASS: registering class device: ID = 'host10'
> <7>class_uevent - name = host10
> <7>device: '0000:03:02.0': device_add
> <7>PM: Adding info for No Bus:0000:03:02.0
> <6>Linux video capture interface: v2.00
> <7>device class 'video4linux': registering
> <7>device: '0000:03:02.0': device_unregister
> <7>PM: Removing info for No Bus:0000:03:02.0
> <5>aic94xx: Found sequencer Firmware version 1.1 (V32)
> <5>aic94xx: device 0000:03:02.0: SAS addr 5003048000009260, PCBA SN ORG,
> 8 phys, 8 enabled phys, flash present, BIOS build 1665
> <7>device: 'phy-10:0': device_add
> <7>PM: Adding info for No Bus:phy-10:0
> <7>CLASS: registering class device: ID = 'phy-10:0'
> <7>class_uevent - name = phy-10:0
> <7>device: 'phy-10:1': device_add
> <7>PM: Adding info for No Bus:phy-10:1
> <7>CLASS: registering class device: ID = 'phy-10:1'
> <7>class_uevent - name = phy-10:1
> <7>device: 'phy-10:2': device_add
> <7>PM: Adding info for No Bus:phy-10:2
> <7>CLASS: registering class device: ID = 'phy-10:2'
> <7>class_uevent - name = phy-10:2
> <7>device: 'phy-10:3': device_add
> <7>PM: Adding info for No Bus:phy-10:3
> <7>CLASS: registering class device: ID = 'phy-10:3'
> <7>class_uevent - name = phy-10:3
> <7>device: 'phy-10:4': device_add
> <7>PM: Adding info for No Bus:phy-10:4
> <7>CLASS: registering class device: ID = 'phy-10:4'
> <7>class_uevent - name = phy-10:4
> <7>device: 'phy-10:5': device_add
> <7>PM: Adding info for No Bus:phy-10:5
> <7>CLASS: registering class device: ID = 'phy-10:5'
> <7>class_uevent - name = phy-10:5
> <7>device: 'phy-10:6': device_add
> <7>PM: Adding info for No Bus:phy-10:6
> <7>CLASS: registering class device: ID = 'phy-10:6'
> <7>class_uevent - name = phy-10:6
> <7>device: 'phy-10:7': device_add
> <7>PM: Adding info for No Bus:phy-10:7
> <7>CLASS: registering class device: ID = 'phy-10:7'
> <7>class_uevent - name = phy-10:7
> <6>cx2388x alsa driver version 0.0.6 loaded
> <7>bus: 'pci': add driver cx88_audio
> <7>device: 'port-10:0': device_add
> <7>PM: Adding info for No Bus:port-10:0
> <7>CLASS: registering class device: ID = 'port-10:0'
> <7>class_uevent - name = port-10:0
> <5>sas: phy-10:0 added to port-10:0, phy_mask:0x1 (5003048000009270)
> <7>device: 'port-10:1': device_add
> <7>PM: Adding info for No Bus:port-10:1
> <7>CLASS: registering class device: ID = 'port-10:1'
> <7>class_uevent - name = port-10:1
> <5>sas: phy-10:1 added to port-10:1, phy_mask:0x2 (5003048000009271)
> <5>sas: DOING DISCOVERY on port 0, pid:1712
> <6>cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.6 loaded
> <7>device: 'end_device-10:0': device_add
> <7>PM: Adding info for No Bus:end_device-10:0
> <7>CLASS: registering class device: ID = 'end_device-10:0'
> <7>class_uevent - name = end_device-10:0
> <7>CLASS: registering class device: ID = 'end_device-10:0'
> <7>class_uevent - name = end_device-10:0
> <7>device: 'target10:0:0': device_add
> <7>PM: Adding info for No Bus:target10:0:0
> <7>bus: 'pci': add driver cx88-mpeg driver manager
> <6>cx88/0: cx2388x v4l2 driver version 0.0.6 loaded
> <7>bus: 'pci': add driver cx8800
> <3>hub 5-0:1.0: unable to enumerate USB device on port 4
> <6>usb 2-2: new full speed USB device using uhci_hcd and address 4
> <7>device: '2-2': device_add
> <7>PM: Adding info for usb:2-2
> <7>bus: 'usb': add device 2-2
> <7>bus: 'usb': driver_probe_device: matched device 2-2 with driver usb
> <7>bus: 'usb': really_probe: probing driver usb with device 2-2
> <7>device: 'usbdev2.4_ep00': device_add
> <7>PM: Adding info for No Bus:usbdev2.4_ep00
> <6>usb 2-2: configuration #1 chosen from 1 choice
> <7>device: '2-2:1.0': device_add
> <7>PM: Adding info for usb:2-2:1.0
> <7>bus: 'usb': add device 2-2:1.0
> <7>device: 'usbdev2.4_ep82': device_add
> <7>PM: Adding info for No Bus:usbdev2.4_ep82
> <7>device: '2-2:1.1': device_add
> <7>PM: Adding info for usb:2-2:1.1
> <7>bus: 'usb': add device 2-2:1.1
> <7>device: 'usbdev2.4': device_add
> <7>PM: Adding info for No Bus:usbdev2.4
> <7>driver: '2-2': driver_bound: bound to device 'usb'
> <7>bus: 'usb': really_probe: bound device 2-2 to driver usb
> <5>sas: sas_ata_phy_reset: Found ATA device.
> <4>ata11.00: native sectors (1) is smaller than sectors (488397168)
> <6>ata11.00: ATA-7: HDT722525DLA380, V44OA96A, max UDMA/133
> <6>ata11.00: 488397168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> <7>bus: 'usb': add driver cdc_ether
> <7>bus: 'usb': driver_probe_device: matched device 2-2:1.0 with driver
> cdc_ether
> <7>bus: 'usb': really_probe: probing driver cdc_ether with device 2-2:1.0
> <7>driver: '2-2:1.1': driver_bound: bound to device 'cdc_ether'
> <6>ata11.00: configured for UDMA/133
> <7>device: 'usbdev2.4_ep01': device_add
> <7>PM: Adding info for No Bus:usbdev2.4_ep01
> <5>scsi 10:0:0:0: Direct-Access     ATA      HDT722525DLA380  V44O PQ: 0
> ANSI: 5
> <7>device: 'usbdev2.4_ep81': device_add
> <7>PM: Adding info for No Bus:usbdev2.4_ep81
> <7>device: '10:0:0:0': device_add
> <7>PM: Adding info for scsi:10:0:0:0
> <7>bus: 'scsi': add device 10:0:0:0
> <7>bus: 'scsi': driver_probe_device: matched device 10:0:0:0 with driver sd
> <7>bus: 'scsi': really_probe: probing driver sd with device 10:0:0:0
> <7>CLASS: registering class device: ID = '10:0:0:0'
> <7>class_uevent - name = 10:0:0:0
> <5>sd 10:0:0:0: [sde] 488397168 512-byte hardware sectors (250059 MB)
> <7>device: 'eth0': device_add
> <5>sd 10:0:0:0: [sde] Write Protect is off
> <7>PM: Adding info for No Bus:eth0
> <6>eth0: register 'cdc_ether' at usb-0000:00:1d.1-2, CDC Ethernet
> Device, 00:04:0e:46:87:31
> <7>driver: '2-2:1.0': driver_bound: bound to device 'cdc_ether'
> <7>bus: 'usb': really_probe: bound device 2-2:1.0 to driver cdc_ether
> <6>usbcore: registered new interface driver cdc_ether
> <7>sd 10:0:0:0: [sde] Mode Sense: 00 3a 00 00
> <5>sd 10:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> <7>device: 'sde': device_add
> <7>PM: Adding info for No Bus:sde
> <5>sd 10:0:0:0: [sde] 488397168 512-byte hardware sectors (250059 MB)
> <5>sd 10:0:0:0: [sde] Write Protect is off
> <7>sd 10:0:0:0: [sde] Mode Sense: 00 3a 00 00
> <5>sd 10:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> <6> sde: sde1 sde2 sde3 < sde5 >
> <7>device: 'sde1': device_add
> <7>PM: Adding info for No Bus:sde1
> <7>device: 'sde2': device_add
> <7>PM: Adding info for No Bus:sde2
> <7>device: 'sde3': device_add
> <7>PM: Adding info for No Bus:sde3
> <7>device: 'sde5': device_add
> <7>PM: Adding info for No Bus:sde5
> <5>sd 10:0:0:0: [sde] Attached SCSI disk
> <7>driver: '10:0:0:0': driver_bound: bound to device 'sd'
> <7>bus: 'scsi': really_probe: bound device 10:0:0:0 to driver sd
> <7>CLASS: registering class device: ID = '10:0:0:0'
> <7>class_uevent - name = 10:0:0:0
> <7>CLASS: registering class device: ID = 'sg7'
> <7>class_uevent - name = sg7
> <7>class_device_create_uevent called for sg7
> <5>sd 10:0:0:0: Attached scsi generic sg7 type 0
> <5>sas: DONE DISCOVERY on port 0, pid:1712, result:0
> <5>sas: DOING DISCOVERY on port 1, pid:1712
> <7>device: 'end_device-10:1': device_add
> <7>PM: Adding info for No Bus:end_device-10:1
> <7>CLASS: registering class device: ID = 'end_device-10:1'
> <7>class_uevent - name = end_device-10:1
> <7>CLASS: registering class device: ID = 'end_device-10:1'
> <7>class_uevent - name = end_device-10:1
> <7>device: 'target10:0:1': device_add
> <7>PM: Adding info for No Bus:target10:0:1
> <7>device: '00023c00210218a4': device_add
> <7>PM: Adding info for ieee1394:00023c00210218a4
> <7>bus: 'ieee1394': add device 00023c00210218a4
> <7>device: '00023c00210218a4': device_add
> <7>PM: Adding info for No Bus:00023c00210218a4
> <7>ieee1394: Host added: ID:BUS[0-01:1023]  GUID[00023c00210218a4]
> <5>sas: sas_ata_phy_reset: Found ATA device.
> <4>ata12.00: native sectors (1) is smaller than sectors (976773168)
> <6>ata12.00: ATA-7: Hitachi HDT725050VLA360, V56OA7EA, max UDMA/133
> <6>ata12.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> <6>ata12.00: configured for UDMA/133
> <5>scsi 10:0:1:0: Direct-Access     ATA      Hitachi HDT72505 V56O PQ: 0
> ANSI: 5
> <7>device: '10:0:1:0': device_add
> <7>PM: Adding info for scsi:10:0:1:0
> <7>bus: 'scsi': add device 10:0:1:0
> <7>bus: 'scsi': driver_probe_device: matched device 10:0:1:0 with driver sd
> <7>bus: 'scsi': really_probe: probing driver sd with device 10:0:1:0
> <7>CLASS: registering class device: ID = '10:0:1:0'
> <7>class_uevent - name = 10:0:1:0
> <5>sd 10:0:1:0: [sdf] 976773168 512-byte hardware sectors (500108 MB)
> <5>sd 10:0:1:0: [sdf] Write Protect is off
> <7>sd 10:0:1:0: [sdf] Mode Sense: 00 3a 00 00
> <5>sd 10:0:1:0: [sdf] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> <7>device: 'sdf': device_add
> <7>PM: Adding info for No Bus:sdf
> <5>sd 10:0:1:0: [sdf] 976773168 512-byte hardware sectors (500108 MB)
> <5>sd 10:0:1:0: [sdf] Write Protect is off
> <7>sd 10:0:1:0: [sdf] Mode Sense: 00 3a 00 00
> <5>sd 10:0:1:0: [sdf] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> <6> sdf: sdf1 sdf2
> <7>device: 'sdf1': device_add
> <7>PM: Adding info for No Bus:sdf1
> <7>device: 'sdf2': device_add
> <7>PM: Adding info for No Bus:sdf2
> <5>sd 10:0:1:0: [sdf] Attached SCSI disk
> <7>driver: '10:0:1:0': driver_bound: bound to device 'sd'
> <7>bus: 'scsi': really_probe: bound device 10:0:1:0 to driver sd
> <7>CLASS: registering class device: ID = '10:0:1:0'
> <7>class_uevent - name = 10:0:1:0
> <7>CLASS: registering class device: ID = 'sg8'
> <7>class_uevent - name = sg8
> <7>class_device_create_uevent called for sg8
> <5>sd 10:0:1:0: Attached scsi generic sg8 type 0
> <5>sas: DONE DISCOVERY on port 1, pid:1712, result:0
> <5>sas: sas_form_port: phy0 belongs to port0 already(1)!
> <5>sas: sas_form_port: phy1 belongs to port1 already(1)!
> <7>driver: '0000:03:02.0': driver_bound: bound to device 'aic94xx'
> <7>bus: 'pci': really_probe: bound device 0000:03:02.0 to driver aic94xx
> <7>bus: 'pci': driver_probe_device: matched device 0000:06:00.0 with
> driver nvidia
> <7>bus: 'pci': really_probe: probing driver nvidia with device 0000:06:00.0
> <6>ACPI: PCI Interrupt 0000:06:00.0[A] -> <7>bus: 'pci':
> driver_probe_device: matched device 0000:03:03.1 with driver
> Emu10k1_gameport
> <7>bus: 'pci': really_probe: probing driver Emu10k1_gameport with device
> 0000:03:03.1
> <7>driver: '0000:03:03.1': driver_bound: bound to device 'Emu10k1_gameport'
> <7>bus: 'pci': really_probe: bound device 0000:03:03.1 to driver
> Emu10k1_gameport
> <6>gameport: EMU10K1 is pci0000:03:03.1/gameport0, io 0x2420, speed 451kHz
> 
> 
> output from dmesg:
> 
> Kernel: 2.6.25.4-bigsmp #15 SMP
> 
> aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.3 loaded
> bus: 'pci': add driver aic94xx
> device: 'event4': device_add
> PM: Adding info for No Bus:event4
> ACPI: Power Button (CM) [PWRB]
> driver: 'PNP0C0C:00': driver_bound: bound to device 'button'
> bus: 'acpi': really_probe: bound device PNP0C0C:00 to driver button
> driver: '2-0:1.0': driver_bound: bound to device 'hub'
> bus: 'usb': really_probe: bound device 2-0:1.0 to driver hub
> device: 'usbdev2.1_ep81': device_add
> PM: Adding info for No Bus:usbdev2.1_ep81
> device: 'usbdev2.1': device_add
> PM: Adding info for No Bus:usbdev2.1
> driver: 'usb2': driver_bound: bound to device 'usb'
> bus: 'usb': really_probe: bound device usb2 to driver usb
> driver: '0000:00:1d.1': driver_bound: bound to device 'uhci_hcd'
> bus: 'pci': really_probe: bound device 0000:00:1d.1 to driver uhci_hcd
> bus: 'pci': driver_probe_device: matched device 0000:00:1d.2 with driver
> uhci_hcd
> bus: 'pci': really_probe: probing driver uhci_hcd with device 0000:00:1d.2
> ACPI: PCI Interrupt 0000:00:1d.2[C] -> <7>parport_pc 00:0d: driver attached
> driver: '00:0d': driver_bound: bound to device 'parport_pc'
> bus: 'pnp': really_probe: bound device 00:0d to driver parport_pc
> Registering platform device 'parport_pc.956'. Parent at platform
> device: 'parport_pc.956': device_add
> PM: Adding info for platform:parport_pc.956
> bus: 'platform': add device parport_pc.956
> bus: 'platform': driver_probe_device: matched device parport_pc.956 with
> driver parport_pc
> bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.956
> driver: 'parport_pc.956': driver_bound: bound to device 'parport_pc'
> bus: 'platform': really_probe: bound device parport_pc.956 to driver
> parport_pc
> PM: Removing info for platform:parport_pc.956
> bus: 'platform': remove device parport_pc.956
> Registering platform device 'parport_pc.888'. Parent at platform
> device: 'parport_pc.888': device_add
> PM: Adding info for platform:parport_pc.888
> bus: 'platform': add device parport_pc.888
> bus: 'platform': driver_probe_device: matched device parport_pc.888 with
> driver parport_pc
> bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.888
> driver: 'parport_pc.888': driver_bound: bound to device 'parport_pc'
> bus: 'platform': really_probe: bound device parport_pc.888 to driver
> parport_pc
> PM: Removing info for platform:parport_pc.888
> bus: 'platform': remove device parport_pc.888
> Registering platform device 'parport_pc.632'. Parent at platform
> device: 'parport_pc.632': device_add
> PM: Adding info for platform:parport_pc.632
> bus: 'platform': add device parport_pc.632
> bus: 'platform': driver_probe_device: matched device parport_pc.632 with
> driver parport_pc
> bus: 'platform': really_probe: probing driver parport_pc with device
> parport_pc.632
> driver: 'parport_pc.632': driver_bound: bound to device 'parport_pc'
> bus: 'platform': really_probe: bound device parport_pc.632 to driver
> parport_pc
> PM: Removing info for platform:parport_pc.632
> bus: 'platform': remove device parport_pc.632
> bus: 'pci': add driver parport_pc
> GSI 18 (level, low) -> IRQ 18
> PCI: Setting latency timer of device 0000:00:1d.2 to 64
> uhci_hcd 0000:00:1d.2: UHCI Host Controller
> device: 'usb_host3': device_add
> bus: 'i2c': add driver tveeprom
> PM: Adding info for No Bus:usb_host3
> uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
> uhci_hcd 0000:00:1d.2: irq 18, io base 0x00001440
> device: 'usb3': device_add
> PM: Adding info for usb:usb3
> bus: 'usb': add device usb3
> bus: 'usb': driver_probe_device: matched device usb3 with driver usb
> bus: 'usb': really_probe: probing driver usb with device usb3
> device: 'usbdev3.1_ep00': device_add
> PM: Adding info for No Bus:usbdev3.1_ep00
> usb usb3: configuration #1 chosen from 1 choice
> device: '3-0:1.0': device_add
> PM: Adding info for usb:3-0:1.0
> bus: 'usb': add device 3-0:1.0
> bus: 'usb': driver_probe_device: matched device 3-0:1.0 with driver hub
> bus: 'usb': really_probe: probing driver hub with device 3-0:1.0
> hub 3-0:1.0: USB hub found
> hub 3-0:1.0: 2 ports detected
> bus: 'pci': add driver Emu10k1_gameport
> bus: 'acpi': add driver thermal
> bus: 'acpi': driver_probe_device: matched device LNXTHERM:00 with driver
> thermal
> bus: 'acpi': really_probe: probing driver thermal with device LNXTHERM:00
> device class 'ppdev': registering
> device: 'parport0': device_add
> PM: Adding info for No Bus:parport0
> ppdev: user-space parallel port driver
> driver: '3-0:1.0': driver_bound: bound to device 'hub'
> bus: 'usb': really_probe: bound device 3-0:1.0 to driver hub
> device: 'usbdev3.1_ep81': device_add
> PM: Adding info for No Bus:usbdev3.1_ep81
> device: 'usbdev3.1': device_add
> PM: Adding info for No Bus:usbdev3.1
> driver: 'usb3': driver_bound: bound to device 'usb'
> bus: 'usb': really_probe: bound device usb3 to driver usb
> driver: '0000:00:1d.2': driver_bound: bound to device 'uhci_hcd'
> bus: 'pci': really_probe: bound device 0000:00:1d.2 to driver uhci_hcd
> bus: 'pci': driver_probe_device: matched device 0000:00:1d.3 with driver
> uhci_hcd
> bus: 'pci': really_probe: probing driver uhci_hcd with device 0000:00:1d.3
> ACPI: PCI Interrupt 0000:00:1d.3[A] -> GSI 16 (level, low) -> IRQ 16
> PCI: Setting latency timer of device 0000:00:1d.3 to 64
> uhci_hcd 0000:00:1d.3: UHCI Host Controller
> device: 'usb_host4': device_add
> PM: Adding info for No Bus:usb_host4
> uhci_hcd 0000:00:1d.3: new USB bus registered, assigned bus number 4
> uhci_hcd 0000:00:1d.3: irq 16, io base 0x00001460
> device: 'usb4': device_add
> PM: Adding info for usb:usb4
> bus: 'usb': add device usb4
> bus: 'usb': driver_probe_device: matched device usb4 with driver usb
> bus: 'usb': really_probe: probing driver usb with device usb4
> device: 'usbdev4.1_ep00': device_add
> PM: Adding info for No Bus:usbdev4.1_ep00
> usb usb4: configuration #1 chosen from 1 choice
> device: '4-0:1.0': device_add
> usb 2-2: new full speed USB device using uhci_hcd and address 2
> PM: Adding info for usb:4-0:1.0
> bus: 'usb': add device 4-0:1.0
> bus: 'usb': driver_probe_device: matched device 4-0:1.0 with driver hub
> bus: 'usb': really_probe: probing driver hub with device 4-0:1.0
> hub 4-0:1.0: USB hub found
> hub 4-0:1.0: 2 ports detected
> driver: '4-0:1.0': driver_bound: bound to device 'hub'
> bus: 'usb': really_probe: bound device 4-0:1.0 to driver hub
> device: 'usbdev4.1_ep81': device_add
> PM: Adding info for No Bus:usbdev4.1_ep81
> device: 'usbdev4.1': device_add
> PM: Adding info for No Bus:usbdev4.1
> driver: 'usb4': driver_bound: bound to device 'usb'
> bus: 'usb': really_probe: bound device usb4 to driver usb
> driver: '0000:00:1d.3': driver_bound: bound to device 'uhci_hcd'
> bus: 'pci': really_probe: bound device 0000:00:1d.3 to driver uhci_hcd
> bus: 'pci': driver_probe_device: matched device 0000:00:1d.7 with driver
> ehci_hcd
> bus: 'pci': driver_probe_device: matched device 0000:03:03.2 with driver
> ohci1394
> bus: 'pci': really_probe: probing driver ohci1394 with device 0000:03:03.2
> bus: 'pci': really_probe: probing driver ehci_hcd with device 0000:00:1d.7
> ACPI: PCI Interrupt 0000:03:03.2[B] -> <6>ACPI: PCI Interrupt
> 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 23
> PCI: Setting latency timer of device 0000:00:1d.7 to 64
> ehci_hcd 0000:00:1d.7: EHCI Host Controller
> device: 'usb_host5': device_add
> PM: Adding info for No Bus:usb_host5
> ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
> ehci_hcd 0000:00:1d.7: debug port 1
> PCI: cache line size of 128 is not supported by device 0000:00:1d.7
> ehci_hcd 0000:00:1d.7: irq 23, io mem 0xc8000000
> usb 2-2: unable to read config index 0 descriptor/all
> usb 2-2: can't read configurations, error -71
> ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> device: 'usb5': device_add
> PM: Adding info for usb:usb5
> bus: 'usb': add device usb5
> bus: 'usb': driver_probe_device: matched device usb5 with driver usb
> bus: 'usb': really_probe: probing driver usb with device usb5
> device: 'usbdev5.1_ep00': device_add
> PM: Adding info for No Bus:usbdev5.1_ep00
> usb usb5: configuration #1 chosen from 1 choice
> device: '5-0:1.0': device_add
> PM: Adding info for usb:5-0:1.0
> bus: 'usb': add device 5-0:1.0
> bus: 'usb': driver_probe_device: matched device 5-0:1.0 with driver hub
> bus: 'usb': really_probe: probing driver hub with device 5-0:1.0
> hub 5-0:1.0: USB hub found
> hub 5-0:1.0: 8 ports detected
> hub 2-0:1.0: unable to enumerate USB device on port 2
> nvidia: module license 'NVIDIA' taints kernel.
> nvidia: no version for "agp_bind_memory" found: kernel tainted.
> GSI 29 (level, low) -> IRQ 29
> device: 'fw-host0': device_add
> driver: '5-0:1.0': driver_bound: bound to device 'hub'
> bus: 'usb': really_probe: bound device 5-0:1.0 to driver hub
> PM: Adding info for ieee1394:fw-host0
> bus: 'ieee1394': add device fw-host0
> device: 'usbdev5.1_ep81': device_add
> driver: 'fw-host0': driver_bound: bound to device 'nodemgr'
> device: 'fw-host0': device_add
> PM: Adding info for No Bus:usbdev5.1_ep81
> PM: Adding info for No Bus:fw-host0
> device: 'usbdev5.1': device_add
> PM: Adding info for No Bus:usbdev5.1
> driver: 'usb5': driver_bound: bound to device 'usb'
> bus: 'usb': really_probe: bound device usb5 to driver usb
> driver: '0000:00:1d.7': driver_bound: bound to device 'ehci_hcd'
> bus: 'pci': really_probe: bound device 0000:00:1d.7 to driver ehci_hcd
> bus: 'pci': add driver nvidia
> ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[29]
> MMIO=[c8204000-c82047ff]  Max Packet=[2048]  IR/IT contexts=[4/8]
> driver: '0000:03:03.2': driver_bound: bound to device 'ohci1394'
> bus: 'pci': really_probe: bound device 0000:03:03.2 to driver ohci1394
> bus: 'pci': driver_probe_device: matched device 0000:03:02.0 with driver
> aic94xx
> bus: 'pci': really_probe: probing driver aic94xx with device 0000:03:02.0
> ACPI: PCI Interrupt 0000:03:02.0[A] -> GSI 32 (level, low) -> IRQ 32
> aic94xx: found Adaptec AIC-9410W SAS/SATA Host Adapter, device 0000:03:02.0
> scsi10 : aic94xx
> device: 'host10': device_add
> PM: Adding info for No Bus:host10
> CLASS: registering class device: ID = 'host10'
> class_uevent - name = host10
> CLASS: registering class device: ID = 'host10'
> class_uevent - name = host10
> device: '0000:03:02.0': device_add
> PM: Adding info for No Bus:0000:03:02.0
> Linux video capture interface: v2.00
> device class 'video4linux': registering
> device: '0000:03:02.0': device_unregister
> PM: Removing info for No Bus:0000:03:02.0
> aic94xx: Found sequencer Firmware version 1.1 (V32)
> aic94xx: device 0000:03:02.0: SAS addr 5003048000009260, PCBA SN ORG, 8
> phys, 8 enabled phys, flash present, BIOS build 1665
> device: 'phy-10:0': device_add
> PM: Adding info for No Bus:phy-10:0
> CLASS: registering class device: ID = 'phy-10:0'
> class_uevent - name = phy-10:0
> device: 'phy-10:1': device_add
> PM: Adding info for No Bus:phy-10:1
> CLASS: registering class device: ID = 'phy-10:1'
> class_uevent - name = phy-10:1
> device: 'phy-10:2': device_add
> PM: Adding info for No Bus:phy-10:2
> CLASS: registering class device: ID = 'phy-10:2'
> class_uevent - name = phy-10:2
> device: 'phy-10:3': device_add
> PM: Adding info for No Bus:phy-10:3
> CLASS: registering class device: ID = 'phy-10:3'
> class_uevent - name = phy-10:3
> device: 'phy-10:4': device_add
> PM: Adding info for No Bus:phy-10:4
> CLASS: registering class device: ID = 'phy-10:4'
> class_uevent - name = phy-10:4
> device: 'phy-10:5': device_add
> PM: Adding info for No Bus:phy-10:5
> CLASS: registering class device: ID = 'phy-10:5'
> class_uevent - name = phy-10:5
> device: 'phy-10:6': device_add
> PM: Adding info for No Bus:phy-10:6
> CLASS: registering class device: ID = 'phy-10:6'
> class_uevent - name = phy-10:6
> device: 'phy-10:7': device_add
> PM: Adding info for No Bus:phy-10:7
> CLASS: registering class device: ID = 'phy-10:7'
> class_uevent - name = phy-10:7
> cx2388x alsa driver version 0.0.6 loaded
> bus: 'pci': add driver cx88_audio
> device: 'port-10:0': device_add
> PM: Adding info for No Bus:port-10:0
> CLASS: registering class device: ID = 'port-10:0'
> class_uevent - name = port-10:0
> sas: phy-10:0 added to port-10:0, phy_mask:0x1 (5003048000009270)
> device: 'port-10:1': device_add
> PM: Adding info for No Bus:port-10:1
> CLASS: registering class device: ID = 'port-10:1'
> class_uevent - name = port-10:1
> sas: phy-10:1 added to port-10:1, phy_mask:0x2 (5003048000009271)
> sas: DOING DISCOVERY on port 0, pid:1712
> cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.6 loaded
> device: 'end_device-10:0': device_add
> PM: Adding info for No Bus:end_device-10:0
> CLASS: registering class device: ID = 'end_device-10:0'
> class_uevent - name = end_device-10:0
> CLASS: registering class device: ID = 'end_device-10:0'
> class_uevent - name = end_device-10:0
> device: 'target10:0:0': device_add
> PM: Adding info for No Bus:target10:0:0
> bus: 'pci': add driver cx88-mpeg driver manager
> cx88/0: cx2388x v4l2 driver version 0.0.6 loaded
> bus: 'pci': add driver cx8800
> hub 5-0:1.0: unable to enumerate USB device on port 4
> usb 2-2: new full speed USB device using uhci_hcd and address 4
> device: '2-2': device_add
> PM: Adding info for usb:2-2
> bus: 'usb': add device 2-2
> bus: 'usb': driver_probe_device: matched device 2-2 with driver usb
> bus: 'usb': really_probe: probing driver usb with device 2-2
> device: 'usbdev2.4_ep00': device_add
> PM: Adding info for No Bus:usbdev2.4_ep00
> usb 2-2: configuration #1 chosen from 1 choice
> device: '2-2:1.0': device_add
> PM: Adding info for usb:2-2:1.0
> bus: 'usb': add device 2-2:1.0
> device: 'usbdev2.4_ep82': device_add
> PM: Adding info for No Bus:usbdev2.4_ep82
> device: '2-2:1.1': device_add
> PM: Adding info for usb:2-2:1.1
> bus: 'usb': add device 2-2:1.1
> device: 'usbdev2.4': device_add
> PM: Adding info for No Bus:usbdev2.4
> driver: '2-2': driver_bound: bound to device 'usb'
> bus: 'usb': really_probe: bound device 2-2 to driver usb
> sas: sas_ata_phy_reset: Found ATA device.
> ata11.00: native sectors (1) is smaller than sectors (488397168)
> ata11.00: ATA-7: HDT722525DLA380, V44OA96A, max UDMA/133
> ata11.00: 488397168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> bus: 'usb': add driver cdc_ether
> bus: 'usb': driver_probe_device: matched device 2-2:1.0 with driver
> cdc_ether
> bus: 'usb': really_probe: probing driver cdc_ether with device 2-2:1.0
> driver: '2-2:1.1': driver_bound: bound to device 'cdc_ether'
> ata11.00: configured for UDMA/133
> device: 'usbdev2.4_ep01': device_add
> PM: Adding info for No Bus:usbdev2.4_ep01
> scsi 10:0:0:0: Direct-Access     ATA      HDT722525DLA380  V44O PQ: 0
> ANSI: 5
> device: 'usbdev2.4_ep81': device_add
> PM: Adding info for No Bus:usbdev2.4_ep81
> device: '10:0:0:0': device_add
> PM: Adding info for scsi:10:0:0:0
> bus: 'scsi': add device 10:0:0:0
> bus: 'scsi': driver_probe_device: matched device 10:0:0:0 with driver sd
> bus: 'scsi': really_probe: probing driver sd with device 10:0:0:0
> CLASS: registering class device: ID = '10:0:0:0'
> class_uevent - name = 10:0:0:0
> sd 10:0:0:0: [sde] 488397168 512-byte hardware sectors (250059 MB)
> device: 'eth0': device_add
> sd 10:0:0:0: [sde] Write Protect is off
> PM: Adding info for No Bus:eth0
> eth0: register 'cdc_ether' at usb-0000:00:1d.1-2, CDC Ethernet Device,
> 00:04:0e:46:87:31
> driver: '2-2:1.0': driver_bound: bound to device 'cdc_ether'
> bus: 'usb': really_probe: bound device 2-2:1.0 to driver cdc_ether
> usbcore: registered new interface driver cdc_ether
> sd 10:0:0:0: [sde] Mode Sense: 00 3a 00 00
> sd 10:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> device: 'sde': device_add
> PM: Adding info for No Bus:sde
> sd 10:0:0:0: [sde] 488397168 512-byte hardware sectors (250059 MB)
> sd 10:0:0:0: [sde] Write Protect is off
> sd 10:0:0:0: [sde] Mode Sense: 00 3a 00 00
> sd 10:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
>   sde: sde1 sde2 sde3 < sde5 >
> device: 'sde1': device_add
> PM: Adding info for No Bus:sde1
> device: 'sde2': device_add
> PM: Adding info for No Bus:sde2
> device: 'sde3': device_add
> PM: Adding info for No Bus:sde3
> device: 'sde5': device_add
> PM: Adding info for No Bus:sde5
> sd 10:0:0:0: [sde] Attached SCSI disk
> driver: '10:0:0:0': driver_bound: bound to device 'sd'
> bus: 'scsi': really_probe: bound device 10:0:0:0 to driver sd
> CLASS: registering class device: ID = '10:0:0:0'
> class_uevent - name = 10:0:0:0
> CLASS: registering class device: ID = 'sg7'
> class_uevent - name = sg7
> class_device_create_uevent called for sg7
> sd 10:0:0:0: Attached scsi generic sg7 type 0
> sas: DONE DISCOVERY on port 0, pid:1712, result:0
> sas: DOING DISCOVERY on port 1, pid:1712
> device: 'end_device-10:1': device_add
> PM: Adding info for No Bus:end_device-10:1
> CLASS: registering class device: ID = 'end_device-10:1'
> class_uevent - name = end_device-10:1
> CLASS: registering class device: ID = 'end_device-10:1'
> class_uevent - name = end_device-10:1
> device: 'target10:0:1': device_add
> PM: Adding info for No Bus:target10:0:1
> device: '00023c00210218a4': device_add
> PM: Adding info for ieee1394:00023c00210218a4
> bus: 'ieee1394': add device 00023c00210218a4
> device: '00023c00210218a4': device_add
> PM: Adding info for No Bus:00023c00210218a4
> ieee1394: Host added: ID:BUS[0-01:1023]  GUID[00023c00210218a4]
> sas: sas_ata_phy_reset: Found ATA device.
> ata12.00: native sectors (1) is smaller than sectors (976773168)
> ata12.00: ATA-7: Hitachi HDT725050VLA360, V56OA7EA, max UDMA/133
> ata12.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata12.00: configured for UDMA/133
> scsi 10:0:1:0: Direct-Access     ATA      Hitachi HDT72505 V56O PQ: 0
> ANSI: 5
> device: '10:0:1:0': device_add
> PM: Adding info for scsi:10:0:1:0
> bus: 'scsi': add device 10:0:1:0
> bus: 'scsi': driver_probe_device: matched device 10:0:1:0 with driver sd
> bus: 'scsi': really_probe: probing driver sd with device 10:0:1:0
> CLASS: registering class device: ID = '10:0:1:0'
> class_uevent - name = 10:0:1:0
> sd 10:0:1:0: [sdf] 976773168 512-byte hardware sectors (500108 MB)
> sd 10:0:1:0: [sdf] Write Protect is off
> sd 10:0:1:0: [sdf] Mode Sense: 00 3a 00 00
> sd 10:0:1:0: [sdf] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> device: 'sdf': device_add
> PM: Adding info for No Bus:sdf
> sd 10:0:1:0: [sdf] 976773168 512-byte hardware sectors (500108 MB)
> sd 10:0:1:0: [sdf] Write Protect is off
> sd 10:0:1:0: [sdf] Mode Sense: 00 3a 00 00
> sd 10:0:1:0: [sdf] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
>   sdf: sdf1 sdf2
> device: 'sdf1': device_add
> PM: Adding info for No Bus:sdf1
> device: 'sdf2': device_add
> PM: Adding info for No Bus:sdf2
> sd 10:0:1:0: [sdf] Attached SCSI disk
> driver: '10:0:1:0': driver_bound: bound to device 'sd'
> bus: 'scsi': really_probe: bound device 10:0:1:0 to driver sd
> CLASS: registering class device: ID = '10:0:1:0'
> class_uevent - name = 10:0:1:0
> CLASS: registering class device: ID = 'sg8'
> class_uevent - name = sg8
> class_device_create_uevent called for sg8
> sd 10:0:1:0: Attached scsi generic sg8 type 0
> sas: DONE DISCOVERY on port 1, pid:1712, result:0
> sas: sas_form_port: phy0 belongs to port0 already(1)!
> sas: sas_form_port: phy1 belongs to port1 already(1)!
> driver: '0000:03:02.0': driver_bound: bound to device 'aic94xx'
> bus: 'pci': really_probe: bound device 0000:03:02.0 to driver aic94xx
> bus: 'pci': driver_probe_device: matched device 0000:06:00.0 with driver
> nvidia
> bus: 'pci': really_probe: probing driver nvidia with device 0000:06:00.0
> ACPI: PCI Interrupt 0000:06:00.0[A] -> <7>bus: 'pci':
> driver_probe_device: matched device 0000:03:03.1 with driver
> Emu10k1_gameport
> bus: 'pci': really_probe: probing driver Emu10k1_gameport with device
> 0000:03:03.1
> driver: '0000:03:03.1': driver_bound: bound to device 'Emu10k1_gameport'
> 

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