Bug#404823: confirming
I am experiencing this problem on a system that has been installed for a
while. None of my usb thumb drives work on this system. Is there any
information I can get for you. I have attached the output from dmesg. Search
for "reset" to find the part that I think might be relevant.
wt
--
Warren Turkal, Research Associate III/Systems Administrator
Colorado State University, Dept. of Atmospheric Science
Linux version 2.6.18-3-686 (Debian 2.6.18-7) (waldi@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-20)) #1 SMP Mon Dec 4 16:41:14 UTC 2006
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fef0000 (usable)
BIOS-e820: 000000001fef0000 - 000000001fef3000 (ACPI NVS)
BIOS-e820: 000000001fef3000 - 000000001ff00000 (ACPI data)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
510MB LOWMEM available.
found SMP MP-table at 000f4a80
On node 0 totalpages: 130800
DMA zone: 4096 pages, LIFO batch:0
Normal zone: 126704 pages, LIFO batch:31
DMI 2.3 present.
ACPI: RSDP (v000 IntelR ) @ 0x000f6c20
ACPI: RSDT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fef3000
ACPI: FADT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fef3040
ACPI: BOOT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fef6640
ACPI: MADT (v001 IntelR AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fef6680
ACPI: DSDT (v001 INTELR AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000
ACPI: PM-Timer IO Port: 0x408
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 15:2 APIC version 20
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode: Flat. Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 20000000 (gap: 1ff00000:ded00000)
Detected 1993.636 MHz processor.
Built 1 zonelists. Total pages: 130800
Kernel command line: auto BOOT_IMAGE=Linux ro root=fe00
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 8192 bytes)
Console: colour VGA+ 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 510632k/523200k available (1543k kernel code, 12048k reserved, 574k data, 196k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 3990.92 BogoMIPS (lpj=7981845)
Security Framework v1.0.0 initialized
SELinux: Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: After generic identify, caps: bfebfbff 00000000 00000000 00000000 00000400 00000000 00000000
CPU: After vendor identify, caps: bfebfbff 00000000 00000000 00000000 00000400 00000000 00000000
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Hyper-Threading is disabled
CPU: After all inits, caps: bfebfbff 00000000 00000000 00000080 00000400 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU0: Intel P4/Xeon Extended MCE MSRs (12) available
CPU0: Thermal monitoring enabled
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 16k freed
ACPI: Core revision 20060707
CPU0: Intel(R) Pentium(R) 4 CPU 2.00GHz stepping 07
Total of 1 processors activated (3990.92 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
Brought up 1 CPUs
migration_cost=0
checking if image is initramfs... it is
Freeing initrd memory: 4876k freed
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: PCI BIOS revision 2.10 entry at 0xfaea0, last bus=1
PCI: Using configuration type 1
Setting up standard PCI resources
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
Boot video device is 0000:00:02.0
* The chipset may have PM-Timer Bug. Due to workarounds for a bug,
* this clock source is slow. If you are sure your timer does not have
* this bug, please use "acpi_pm_good" to disable the workaround
PCI quirk: region 0400-047f claimed by ICH4 ACPI/GPIO/TCO
PCI quirk: region 0480-04bf claimed by ICH4 GPIO
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.HUB0._PRT]
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNK0] (IRQs 3 4 5 7 9 10 11 12 14 15) *0, disabled.
ACPI: PCI Interrupt Link [LNK1] (IRQs *3 4 5 7 9 10 11 12 14 15)
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 11 devices
PnPBIOS: Disabled by ACPI PNP
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
pnp: 00:02: ioport range 0x400-0x4bf could not be reserved
PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
PCI: Bridge: 0000:00:1e.0
IO window: c000-cfff
MEM window: ec000000-edffffff
PREFETCH window: 20000000-200fffff
PCI: Setting latency timer of device 0000:00:1e.0 to 64
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 8192)
TCP reno registered
Simple Boot Flag at 0x59 set to 0x1
audit: initializing netlink socket (disabled)
audit(1170466575.048:1): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 8
NET: Registered protocol family 20
Using IPI No-Shortcut mode
ACPI: (supports S0 S1 S3 S4 S5)
Time: tsc clocksource has been installed.
Freeing unused kernel memory: 196k freed
ACPI: Processor [CPU0] (supports 2 throttling states)
usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 169
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 169, io base 0x0000d800
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 177, io base 0x0000d000
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 185
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 185, io base 0x0000d400
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ 193
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 193, io mem 0xee080000
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 6 ports detected
usb 1-1: new low speed USB device using uhci_hcd and address 2
b44.c:v1.01 (Jun 16, 2006)
ACPI: PCI Interrupt 0000:01:09.0[A] -> GSI 17 (level, low) -> IRQ 201
eth0: Broadcom 4400 10/100BaseT Ethernet 00:08:74:b6:ed:ee
ICH4: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 185
ICH4: chipset revision 2
ICH4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
hda: WDC WD600BB-75CAA0, ATA DISK drive
hdb: Maxtor 91000D8, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
usb 4-2: new high speed USB device using ehci_hcd and address 3
usb 4-2: configuration #1 chosen from 1 choice
hub 4-2:1.0: USB hub found
hub 4-2:1.0: 2 ports detected
usb 1-1: new low speed USB device using uhci_hcd and address 3
hdc: HL-DT-ST GCE-8400B, ATAPI CD/DVD-ROM drive
usb 1-1: configuration #1 chosen from 1 choice
ide1 at 0x170-0x177,0x376 on irq 15
usb 4-2.1: new high speed USB device using ehci_hcd and address 5
hda: max request size: 128KiB
hda: Host Protected Area detected.
current capacity is 117187500 sectors (60000 MB)
native capacity is 117231408 sectors (60022 MB)
hda: Host Protected Area disabled.
hda: 117231408 sectors (60022 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(100)
hda: cache flushes not supported
hda: hda1 hda2
hdb: max request size: 128KiB
usb 4-2.1: configuration #1 chosen from 1 choice
hub 4-2.1:1.0: USB hub found
hub 4-2.1:1.0: 4 ports detected
usb 4-2.2: new high speed USB device using ehci_hcd and address 6
usb 4-2.2: configuration #1 chosen from 1 choice
usbcore: registered new driver hiddev
SCSI subsystem initialized
Initializing USB Mass Storage driver...
usb 2-2: new low speed USB device using uhci_hcd and address 2
usb 2-2: configuration #1 chosen from 1 choice
input: Logitech Logitech USB Keyboard as /class/input/input0
input: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:1d.0-1
input: Logitech Logitech USB Keyboard as /class/input/input1
input: USB HID v1.10 Mouse [Logitech Logitech USB Keyboard] on usb-0000:00:1d.0-1
scsi0 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
input: Logitech USB Receiver as /class/input/input2
input: USB HID v1.11 Mouse [Logitech USB Receiver] on usb-0000:00:1d.1-2
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
hdb: 19545120 sectors (10007 MB) w/512KiB Cache, CHS=19390/16/63, UDMA(33)
hdb: cache flushes not supported
hdb: hdb1
hdc: ATAPI 40X CD-ROM CD-R/RW drive, 8192kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: dm-devel@redhat.com
SGI XFS with ACLs, security attributes, realtime, large block numbers, no debug enabled
SGI XFS Quota Management subsystem
Filesystem "dm-0": Disabling barriers, not supported by the underlying device
XFS mounting filesystem dm-0
Ending clean XFS mount for filesystem: dm-0
Vendor: SMSC Model: 223 U HS-CF Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
Vendor: SMSC Model: 223 U HS-MS Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
Vendor: SMSC Model: 223 U HS-SM Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
Vendor: SMSC Model: 223 U HS-SD/MMC Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
usb-storage: device scan complete
ACPI: PCI Interrupt 0000:00:1f.3[B] -> GSI 17 (level, low) -> IRQ 201
ts: Compaq touchscreen protocol output
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 845G Chipset.
agpgart: Detected 892K stolen memory.
agpgart: AGP aperture is 128M @ 0xe0000000
sd 0:0:0:0: Attached scsi removable disk sda
Floppy drive(s): fd0 is 1.44M
sd 0:0:0:1: Attached scsi removable disk sdb
Real Time Clock Driver v1.12ac
sd 0:0:0:2: Attached scsi removable disk sdc
FDC 0 is a post-1991 82077
input: PC Speaker as /class/input/input3
sd 0:0:0:3: Attached scsi removable disk sdd
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
intel_rng: FWH not detected
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE,EPP]
ACPI: PCI Interrupt 0000:00:1f.5[B] -> GSI 17 (level, low) -> IRQ 201
PCI: Setting latency timer of device 0000:00:1f.5 to 64
intel8x0_measure_ac97_clock: measured 58063 usecs
intel8x0: clocking to 48000
ACPI: PCI Interrupt 0000:01:06.0[A] -> GSI 18 (level, low) -> IRQ 185
Adding 1461872k swap on /dev/hda1. Priority:-1 extents:1 across:1461872k
Filesystem "dm-0": Disabling barriers, not supported by the underlying device
Filesystem "dm-1": Disabling barriers, not supported by the underlying device
XFS mounting filesystem dm-1
Ending clean XFS mount for filesystem: dm-1
Filesystem "dm-2": Disabling barriers, not supported by the underlying device
XFS mounting filesystem dm-2
Ending clean XFS mount for filesystem: dm-2
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
ADDRCONF(NETDEV_UP): eth0: link is not ready
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
lp0: using parport0 (interrupt-driven).
ppdev: user-space parallel port driver
eth0: no IPv6 routers present
[drm] Initialized drm 1.0.1 20051102
ACPI: PCI Interrupt 0000:00:02.0[A] -> GSI 16 (level, low) -> IRQ 169
[drm] Initialized i915 1.5.0 20060119 on minor 0
NET: Registered protocol family 4
NET: Registered protocol family 3
NET: Registered protocol family 5
device eth0 entered promiscuous mode
audit(1172175748.398:2): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172175844.266:3): dev=eth0 prom=0 old_prom=256 auid=4294967295
device eth0 entered promiscuous mode
audit(1172175844.694:4): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172175859.834:5): dev=eth0 prom=0 old_prom=256 auid=4294967295
device eth0 entered promiscuous mode
audit(1172175860.122:6): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172175969.363:7): dev=eth0 prom=0 old_prom=256 auid=4294967295
device eth0 entered promiscuous mode
audit(1172175969.751:8): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172175977.571:9): dev=eth0 prom=0 old_prom=256 auid=4294967295
device eth0 entered promiscuous mode
audit(1172175977.895:10): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172176002.824:11): dev=eth0 prom=0 old_prom=256 auid=4294967295
device eth0 entered promiscuous mode
audit(1172191722.502:12): dev=eth0 prom=256 old_prom=0 auid=4294967295
device eth0 left promiscuous mode
audit(1172191761.080:13): dev=eth0 prom=0 old_prom=256 auid=4294967295
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: Cannot enable port 2. Maybe the USB cable is bad?
hub 4-2:1.0: cannot disable port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: Cannot enable port 2. Maybe the USB cable is bad?
hub 4-2:1.0: cannot disable port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: Cannot enable port 2. Maybe the USB cable is bad?
hub 4-2:1.0: cannot disable port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: cannot reset port 2 (err = -71)
hub 4-2:1.0: Cannot enable port 2. Maybe the USB cable is bad?
hub 4-2:1.0: cannot disable port 2 (err = -71)
hub 4-2:1.0: cannot disable port 2 (err = -71)
hub 4-2:1.0: hub_port_status failed (err = -71)
sdc : READ CAPACITY failed.
sdc : status=0, message=00, host=7, driver=00
sdc : sense not available.
sdc: Write Protect is off
sdc: Mode Sense: 00 00 00 00
sdc: assuming drive cache: write through
sdc : READ CAPACITY failed.
sdc : status=0, message=00, host=7, driver=00
sdc : sense not available.
sdc: Write Protect is off
sdc: Mode Sense: 00 00 00 00
sdc: assuming drive cache: write through
sdc:<3>Buffer I/O error on device sdc, logical block 0
Buffer I/O error on device sdc, logical block 0
unable to read partition table
sda : READ CAPACITY failed.
sda : status=0, message=00, host=7, driver=00
sda : sense not available.
sda: Write Protect is off
sda: Mode Sense: 00 00 00 00
sda: assuming drive cache: write through
sda : READ CAPACITY failed.
sda : status=0, message=00, host=7, driver=00
sda : sense not available.
sda: Write Protect is off
sda: Mode Sense: 00 00 00 00
sda: assuming drive cache: write through
sda:<3>Buffer I/O error on device sda, logical block 0
Buffer I/O error on device sda, logical block 0
unable to read partition table
usb 4-2: USB disconnect, address 3
usb 4-2.1: USB disconnect, address 5
usb 4-2.2: USB disconnect, address 6
usb 4-2: new high speed USB device using ehci_hcd and address 7
usb 4-2: new high speed USB device using ehci_hcd and address 8
usb 4-2: configuration #1 chosen from 1 choice
hub 4-2:1.0: USB hub found
hub 4-2:1.0: 2 ports detected
usb 4-2.1: new high speed USB device using ehci_hcd and address 9
usb 4-2.1: configuration #1 chosen from 1 choice
hub 4-2.1:1.0: USB hub found
hub 4-2.1:1.0: 4 ports detected
usb 4-2.2: new high speed USB device using ehci_hcd and address 10
usb 4-2.2: configuration #1 chosen from 1 choice
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 10
usb-storage: waiting for device to settle before scanning
Vendor: SMSC Model: 223 U HS-CF Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
sd 1:0:0:0: Attached scsi removable disk sda
Vendor: SMSC Model: 223 U HS-MS Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
sd 1:0:0:1: Attached scsi removable disk sdb
Vendor: SMSC Model: 223 U HS-SM Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
sd 1:0:0:2: Attached scsi removable disk sdc
Vendor: SMSC Model: 223 U HS-SD/MMC Rev: 3.60
Type: Direct-Access ANSI SCSI revision: 00
sd 1:0:0:3: Attached scsi removable disk sdd
usb-storage: device scan complete
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