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#1 2008-06-21 14:40:07

sykesm
Member
From: Reading, UK
Registered: 2006-09-03
Posts: 70

USB 2 External hardrive drops off

I've got a really irritating problem with a new external 1TB USB drive and, or my new USB 2 card. After a short period of operation it seems to drop off the system. I have the drive connected to a USB 1 port at the moment and it works fine. Bought a new cable when the problem first occured, just in case, no help.

when it drops off, /dev/sdc.. devices also all dissapear. If I cold re-start the drive and  PC all comes back fine.
I've been googling, and there do seem to be interamittent problems with external USB drives going back to the start of the USB 2 spec, and more recently various suggested solutions with udev rules both in the arch forums and elsewhere. I tried one of these with no success. As the drive seems to work fine on USB 1.1 I don't  think the problem lies in this area, or in the appropriate modules not being present.

The Arch install was a fresh FTP one about a month ago, and is base only, test is not enabled, no X or desktop stuff at all. 

Linux version 2.6.25-ARCH (root@architect) (gcc version 4.3.0 (GCC) ) #1 SMP PREEMPT Sat Jun 14 18:07:19 CEST 2008
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
 BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e6c00 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000040fd800 (usable)
 BIOS-e820: 00000000040fd800 - 00000000040ff800 (ACPI data)
 BIOS-e820: 00000000040ff800 - 00000000040ffc00 (ACPI NVS)
 BIOS-e820: 00000000040ffc00 - 0000000018000000 (usable)
 BIOS-e820: 00000000fffe6c00 - 0000000100000000 (reserved)
0MB HIGHMEM available.
384MB LOWMEM available.
Scan SMP from c0000000 for 1024 bytes.
Scan SMP from c009fc00 for 1024 bytes.
Scan SMP from c00f0000 for 65536 bytes.
Scan SMP from c009f800 for 1024 bytes.
Entering add_active_range(0, 0, 98304) 0 entries of 256 used
Zone PFN ranges:
  DMA             0 ->     4096
  Normal       4096 ->    98304
  HighMem     98304 ->    98304
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0:        0 ->    98304
On node 0 totalpages: 98304
  DMA zone: 32 pages used for memmap
  DMA zone: 0 pages reserved
  DMA zone: 4064 pages, LIFO batch:0
  Normal zone: 736 pages used for memmap
  Normal zone: 93472 pages, LIFO batch:31
  HighMem zone: 0 pages used for memmap
  Movable zone: 0 pages used for memmap
DMI 2.1 present.
Allocating PCI resources starting at 20000000 (gap: 18000000:e7fe6c00)
PM: Registered nosave memory: 000000000009f000 - 00000000000a0000
PM: Registered nosave memory: 00000000000a0000 - 00000000000e7000
PM: Registered nosave memory: 00000000000e7000 - 0000000000100000
PM: Registered nosave memory: 00000000040fd000 - 00000000040fe000
PM: Registered nosave memory: 00000000040fe000 - 00000000040ff000
PM: Registered nosave memory: 00000000040ff000 - 0000000004100000
PM: Registered nosave memory: 00000000040ff000 - 0000000004100000
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 97536
Kernel command line: root=/dev/sda3 ro acpi=off
Local APIC disabled by BIOS -- you can enable it with "lapic"
mapped APIC to ffffb000 (0130d000)
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)
Detected 647.205 MHz processor.
Console: colour VGA+ 80x25
console [tty0] enabled
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 376316k/393216k available (2082k kernel code, 16292k reserved, 712k data, 268k init, 0k highmem)
virtual kernel memory layout:
    fixmap  : 0xfff80000 - 0xfffff000   ( 508 kB)
    pkmap   : 0xff800000 - 0xffc00000   (4096 kB)
    vmalloc : 0xd8800000 - 0xff7fe000   ( 623 MB)
    lowmem  : 0xc0000000 - 0xd8000000   ( 384 MB)
      .init : 0xc03c1000 - 0xc0404000   ( 268 kB)
      .data : 0xc0308ad8 - 0xc03baea0   ( 712 kB)
      .text : 0xc0100000 - 0xc0308ad8   (2082 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
CPA: page pool initialized 1 of 1 pages preallocated
SLUB: Genslabs=12, HWalign=32, Order=0-1, MinObjects=4, CPUs=1, Nodes=1
Calibrating delay using timer specific routine.. 1295.41 BogoMIPS (lpj=2159060)
Security Framework initialized
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 9k freed
CPU0: Intel Pentium III (Coppermine) stepping 01
SMP motherboard not detected.
Local APIC not detected. Using dummy APIC emulation.
Brought up 1 CPUs
net_namespace: 548 bytes
Booting paravirtualized kernel on bare hardware
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfd993, last bus=1
PCI: Using configuration type 1
Setting up standard PCI resources
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
* Found PM-Timer Bug on the chipset. Due to workarounds for a bug,
* this clock source is slow. Consider trying other clock sources
pci 0000:00:07.3: quirk: region 8000-803f claimed by PIIX4 ACPI
pci 0000:00:07.3: quirk: region 7000-700f claimed by PIIX4 SMB
PCI: Using IRQ router PIIX/ICH [8086/7110] at 0000:00:07.0
NetLabel: Initializing
NetLabel:  domain hash size = 128
NetLabel:  protocols = UNLABELED CIPSOv4
NetLabel:  unlabeled traffic allowed by default
PCI: Bridge: 0000:00:01.0
  IO window: 9000-9fff
  MEM window: 0xf0100000-0xf01fffff
  PREFETCH window: 0x00000000f8000000-0x00000000fbffffff
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: 16384 (order: 5, 131072 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP reno registered
Unpacking initramfs... done
Freeing initrd memory: 8797k freed
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
pci 0000:00:00.0: Limiting direct PCI/PCI transfers
pci 0000:01:00.0: Boot video device
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
input: Macintosh mouse button emulation as /class/input/input0
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
input: AT Translated Set 2 keyboard as /class/input/input1
cpuidle: using governor ladder
cpuidle: using governor menu
TCP cubic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI No-Shortcut mode
registered taskstats version 1
Freeing unused kernel memory: 268k freed
ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread D671F800 could not acquire Mutex [1] [20070126]
No dock devices found.
SCSI subsystem initialized
libata version 3.00 loaded.
ata_piix 0000:00:07.1: version 2.12
scsi0 : ata_piix
scsi1 : ata_piix
ata1: PATA max UDMA/33 cmd 0x1f0 ctl 0x3f6 bmdma 0x1000 irq 14
ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0x1008 irq 15
ata1.00: ATA-7: Maxtor 6K040L0, NAR61HA0, max UDMA/133
ata1.00: 80293248 sectors, multi 16: LBA 
ata1.01: HPA detected: current 66055244, native 78165360
ata1.01: ATA-6: ST340015ACE, 3.01, max UDMA/100
ata1.01: 66055244 sectors, multi 16: LBA 
ata1.00: configured for UDMA/33
ata1.01: configured for UDMA/33
ata2.00: ATAPI: Pioneer DVD-ROM ATAPIModel DVD-114  0110, E1.10, max UDMA/33
ata2.00: configured for UDMA/33
scsi 0:0:0:0: Direct-Access     ATA      Maxtor 6K040L0   NAR6 PQ: 0 ANSI: 5
scsi 0:0:1:0: Direct-Access     ATA      ST340015ACE      3.01 PQ: 0 ANSI: 5
scsi 1:0:0:0: CD-ROM            PIONEER  DVD-ROM DVD-114  1.10 PQ: 0 ANSI: 5
ne2k-pci.c:v1.03 9/22/2003 D. Becker/P. Gortmaker
PCI: Enabling device 0000:00:0f.0 (0100 -> 0101)
PCI: setting IRQ 10 as level-triggered
PCI: Found IRQ 10 for device 0000:00:0f.0
PCI: Sharing IRQ 10 with 0000:00:0e.0
eth0: Winbond 89C940 found at 0x1040, IRQ 10, 00:20:78:1b:89:51.
Driver 'sd' needs updating - please use bus_type methods
sd 0:0:0:0: [sda] 80293248 512-byte hardware sectors (41110 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] 80293248 512-byte hardware sectors (41110 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1 sda2 sda3 sda4
Driver 'sr' needs updating - please use bus_type methods
sd 0:0:0:0: [sda] Attached SCSI disk
sd 0:0:1:0: [sdb] 66055244 512-byte hardware sectors (33820 MB)
sd 0:0:1:0: [sdb] Write Protect is off
sd 0:0:1:0: [sdb] Mode Sense: 00 3a 00 00
sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:1:0: [sdb] 66055244 512-byte hardware sectors (33820 MB)
sd 0:0:1:0: [sdb] Write Protect is off
sd 0:0:1:0: [sdb] Mode Sense: 00 3a 00 00
sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdb: sdb1
sd 0:0:1:0: [sdb] Attached SCSI disk
sr0: scsi3-mmc drive: 0x/0x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 1:0:0:0: Attached scsi CD-ROM sr0
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
PCI: Enabling device 0000:00:10.0 (0104 -> 0105)
PCI: setting IRQ 9 as level-triggered
PCI: Found IRQ 9 for device 0000:00:10.0
PCI: Sharing IRQ 9 with 0000:00:07.2
PCI: Sharing IRQ 9 with 0000:00:0e.1
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:1:0: Attached scsi generic sg1 type 0
sr 1:0:0:0: Attached scsi generic sg2 type 5
Linux agpgart interface v0.103
agpgart: Detected an Intel 440BX Chipset.
agpgart: AGP aperture is 64M @ 0xf4000000
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
piix4_smbus 0000:00:07.3: Found 0000:00:07.3 device
USB Universal Host Controller Interface driver v3.0
PCI: Found IRQ 9 for device 0000:00:07.2
PCI: Sharing IRQ 9 with 0000:00:0e.1
PCI: Sharing IRQ 9 with 0000:00:10.0
uhci_hcd 0000:00:07.2: UHCI Host Controller
uhci_hcd 0000:00:07.2: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:07.2: irq 9, io base 0x00001020
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
input: PC Speaker as /class/input/input2
PCI: Enabling device 0000:00:0e.0 (0114 -> 0116)
PCI: Found IRQ 10 for device 0000:00:0e.0
PCI: Sharing IRQ 10 with 0000:00:0f.0
ohci_hcd 0000:00:0e.0: OHCI Host Controller
ohci_hcd 0000:00:0e.0: new USB bus registered, assigned bus number 2
ohci_hcd 0000:00:0e.0: irq 10, io mem 0xf0000000
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
PCI: Enabling device 0000:00:0e.3 (0114 -> 0116)
PCI: setting IRQ 11 as level-triggered
PCI: Found IRQ 11 for device 0000:00:0e.3
PCI: Sharing IRQ 11 with 0000:01:00.0
ehci_hcd 0000:00:0e.3: EHCI Host Controller
ehci_hcd 0000:00:0e.3: new USB bus registered, assigned bus number 3
ehci_hcd 0000:00:0e.3: debug port 1
ehci_hcd 0000:00:0e.3: irq 11, io mem 0xf0003000
ehci_hcd 0000:00:0e.3: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 6 ports detected
PCI: Enabling device 0000:00:10.1 (0104 -> 0105)
gameport: EMU10K1 is pci0000:00:10.1/gameport0, io 0x1010, speed 1217kHz
PCI: Enabling device 0000:00:0e.1 (0114 -> 0116)
PCI: Found IRQ 9 for device 0000:00:0e.1
PCI: Sharing IRQ 9 with 0000:00:07.2
PCI: Sharing IRQ 9 with 0000:00:10.0
ohci_hcd 0000:00:0e.1: OHCI Host Controller
ohci_hcd 0000:00:0e.1: new USB bus registered, assigned bus number 4
ohci_hcd 0000:00:0e.1: irq 9, io mem 0xf0001000
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
PCI: Enabling device 0000:00:0e.2 (0114 -> 0116)
PCI: setting IRQ 7 as level-triggered
PCI: Found IRQ 7 for device 0000:00:0e.2
ohci_hcd 0000:00:0e.2: OHCI Host Controller
ohci_hcd 0000:00:0e.2: new USB bus registered, assigned bus number 5
ohci_hcd 0000:00:0e.2: irq 7, io mem 0xf0002000
usb usb5: configuration #1 chosen from 1 choice
hub 5-0:1.0: USB hub found
hub 5-0:1.0: 2 ports detected
usb 3-6: new high speed USB device using ehci_hcd and address 2
usb 3-6: configuration #1 chosen from 1 choice
hub 3-6:1.0: USB hub found
hub 3-6:1.0: 4 ports detected
usb 3-6.1: new high speed USB device using ehci_hcd and address 3
EXT3 FS on sda3, internal journal
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sda4, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdb1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 265064k swap on /dev/sda2.  Priority:-1 extents:1 across:265064k
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory
NFSD: starting 90-second grace period
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
usb 3-6.1: device descriptor read/64, error -110
eth0: no IPv6 routers present
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 4
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 5
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 6
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
hub 3-6:1.0: unable to enumerate USB device on port 1
usb 3-6: USB disconnect, address 2
usb 3-6: new high speed USB device using ehci_hcd and address 7
usb 3-6: configuration #1 chosen from 1 choice
hub 3-6:1.0: USB hub found
hub 3-6:1.0: 4 ports detected
usb 3-6.1: new high speed USB device using ehci_hcd and address 8
usb 3-6.1: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi2 : SCSI emulation for USB Mass Storage devices
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 8
usb-storage: waiting for device to settle before scanning
scsi 2:0:0:0: Direct-Access     Ext Hard  Disk                 PQ: 0 ANSI: 4
sd 2:0:0:0: [sdc] 1953546240 512-byte hardware sectors (1000216 MB)
sd 2:0:0:0: [sdc] Write Protect is off
sd 2:0:0:0: [sdc] Mode Sense: 10 00 00 00
sd 2:0:0:0: [sdc] Assuming drive cache: write through
sd 2:0:0:0: [sdc] 1953546240 512-byte hardware sectors (1000216 MB)
sd 2:0:0:0: [sdc] Write Protect is off
sd 2:0:0:0: [sdc] Mode Sense: 10 00 00 00
sd 2:0:0:0: [sdc] Assuming drive cache: write through
 sdc: sdc1 sdc2 sdc3
sd 2:0:0:0: [sdc] Attached SCSI disk
sd 2:0:0:0: Attached scsi generic sg3 type 0
usb-storage: device scan complete
kjournald starting.  Commit interval 5 seconds
EXT3 FS on sdc1, internal journal
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
sd 2:0:0:0: Device offlined - not ready after error recovery
sd 2:0:0:0: [sdc] Result: hostbyte=0x07 driverbyte=0x00
end_request: I/O error, dev sdc, sector 443458855
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: [sdc] Result: hostbyte=0x01 driverbyte=0x00
end_request: I/O error, dev sdc, sector 443459095
sd 2:0:0:0: rejecting I/O to offline device
sd 2:0:0:0: rejecting I/O to offline device
Buffer I/O error on device sdc1, logical block 40828930
lost page write due to I/O error on sdc1
sd 2:0:0:0: rejecting I/O to offline device
Buffer I/O error on device sdc1, logical block 1526
lost page write due to I/O error on sdc1
Aborting journal on device sdc1.
sd 2:0:0:0: rejecting I/O to offline device
Buffer I/O error on device sdc1, logical block 1289
lost page write due to I/O error on sdc1
usb 3-6.1: USB disconnect, address 8
Buffer I/O error on device sdc1, logical block 47349762
lost page write due to I/O error on sdc1
Buffer I/O error on device sdc1, logical block 49184770
lost page write due to I/O error on sdc1
Buffer I/O error on device sdc1, logical block 142016514
lost page write due to I/O error on sdc1
usb 3-6.1: new high speed USB device using ehci_hcd and address 9
ext3_abort called.
EXT3-fs error (device sdc1): ext3_journal_start_sb: Detected aborted journal
Remounting filesystem read-only
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
EXT3-fs error (device sdc1): ext3_find_entry: reading directory #2 offset 0
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 10
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 11
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: new high speed USB device using ehci_hcd and address 12
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
hub 3-6:1.0: unable to enumerate USB device on port 1
Module                  Size  Used by
nls_cp437               5888  2 
ipv6                  256196  14 
nfsd                  215664  8 
lockd                  61448  2 nfsd
nfs_acl                 3328  1 nfsd
auth_rpcgss            36384  1 nfsd
sunrpc                167840  10 nfsd,lockd,nfs_acl,auth_rpcgss
exportfs                4608  1 nfsd
vfat                   10880  2 
fat                    45984  1 vfat
ext2                   64392  1 
usb_storage            84800  3 
emu10k1_gp              3072  0 
pcspkr                  2816  0 
ehci_hcd               33804  0 
ohci_hcd               21764  0 
gameport               11020  2 emu10k1_gp
uhci_hcd               22288  0 
i2c_piix4               8076  0 
usbcore               129776  5 usb_storage,ehci_hcd,ohci_hcd,uhci_hcd
i2c_core               19348  1 i2c_piix4
intel_agp              23740  1 
shpchp                 29460  0 
pci_hotplug            26276  1 shpchp
agpgart                28244  1 intel_agp
sg                     27188  0 
evdev                   9472  0 
snd_emu10k1           140192  0 
snd_util_mem            3840  1 snd_emu10k1
snd_ac97_codec         97828  1 snd_emu10k1
snd_rawmidi            19840  1 snd_emu10k1
snd_hwdep               7428  1 snd_emu10k1
snd_seq_oss            30336  0 
snd_seq_midi_event      6656  1 snd_seq_oss
snd_seq                48432  4 snd_seq_oss,snd_seq_midi_event
snd_seq_device          6796  4 snd_emu10k1,snd_rawmidi,snd_seq_oss,snd_seq
snd_pcm_oss            38656  0 
snd_pcm                68228  3 snd_emu10k1,snd_ac97_codec,snd_pcm_oss
snd_timer              19848  3 snd_emu10k1,snd_seq,snd_pcm
snd_page_alloc          8072  2 snd_emu10k1,snd_pcm
snd_mixer_oss          14848  1 snd_pcm_oss
snd                    46628  11 snd_emu10k1,snd_ac97_codec,snd_rawmidi,snd_hwdep,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore               6496  1 snd
ac97_bus                2048  1 snd_ac97_codec
slhc                    6016  0 
rtc_cmos                9120  0 
rtc_core               15516  1 rtc_cmos
rtc_lib                 2944  1 rtc_core
ext3                  124040  4 
jbd                    44052  1 ext3
mbcache                 7172  2 ext2,ext3
sr_mod                 15300  0 
cdrom                  33952  1 sr_mod
sd_mod                 23320  11 
ne2k_pci                8928  0 
8390                    9472  1 ne2k_pci
ata_piix               17668  5 
ata_generic             5636  0 
pata_acpi               4992  0 
libata                142096  3 ata_piix,ata_generic,pata_acpi
scsi_mod               92204  5 usb_storage,sg,sr_mod,sd_mod,libata
dock                    7952  1 libata

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#2 2008-06-23 02:15:12

fukawi2
Ex-Administratorino
From: .vic.au
Registered: 2007-09-28
Posts: 6,222
Website

Re: USB 2 External hardrive drops off

This obviously seems to be where the problem is...

EXT3-fs: mounted filesystem with ordered data mode.
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: device descriptor read/64, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: reset high speed USB device using ehci_hcd and address 8
usb 3-6.1: device descriptor read/8, error -110
usb 3-6.1: device descriptor read/8, error -110
sd 2:0:0:0: Device offlined - not ready after error recovery
sd 2:0:0:0: [sdc] Result: hostbyte=0x07 driverbyte=0x00
end_request: I/O error, dev sdc, sector 443458855

The part that interests me is the last line... I would be thinking a bad sector on the disk. However you say it works fine on USB1.1 which I wouldn't think would be the case if it was a bad sector.

Just to rule it out, have you done fsck -c /dev/sdc1 on the device?

Last edited by fukawi2 (2008-06-23 02:15:37)

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#3 2008-07-05 12:35:05

sykesm
Member
From: Reading, UK
Registered: 2006-09-03
Posts: 70

Re: USB 2 External hardrive drops off

Just Identified why the drop off is happening. I was backgrounding the "cp" task, and I think this is what causes the problem. As a consequence of the drive dropping of it's mount point e.g. /dev/sdc disappears from all locations.
eg: /sys/block/sdc, /dev, /dev/disk

if I switch off the drive, and then switch back on, it remounts on the next avaialble i.e. /dev/sdc. when this all is repeated, it moves on to /dev/sdd...

a complete hard reboot of the PC starts everything back at /dev/sdc, sda & sdb already being used by internal drives

I'm guessing that it's the "udev" settings that aren't compatible with backgrounding of the cp operation to an external USB drive. I'm susspecting that while the cp is forground, and a high priority process actively copying, all is well, when in background and it's switched out for another process it's causing the drive to get ineligantly unmounted.

I'm copying 300gb+ hence the backgrounding, as all seems to be fine at the moment, just thought the behaviour might be of general interest.

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