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Subjectusb hdd problems with 2.6.27.2

Hello,

An external HDD, usb-encased, works fine under 2.6.26.5, but under
2.6.27.2 I get hundreds of errors per second, of 'No Sense [current]'.

On connection, under 2.6.26.5, I get the following:

[ 84.503949] usb 1-2.1.1: new high speed USB device using ehci_hcd and address 8
[ 84.696861] usb 1-2.1.1: configuration #1 chosen from 1 choice
[ 84.740856] usbcore: registered new interface driver libusual
[ 84.817625] Initializing USB Mass Storage driver...
[ 84.817625] scsi2 : SCSI emulation for USB Mass Storage devices
[ 84.818820] usbcore: registered new interface driver usb-storage
[ 84.818823] USB Mass Storage support registered.
[ 89.819567] scsi 2:0:0:0: Direct-Access SAMSUNG HD400LD WQ10 PQ: 0 ANSI: 0
[ 89.857627] Driver 'sd' needs updating - please use bus_type methods
[ 89.857837] sd 2:0:0:0: [sda] 781422769 512-byte hardware sectors (400088 MB)
[ 89.858754] sd 2:0:0:0: [sda] Write Protect is off
[ 89.858754] sd 2:0:0:0: [sda] Assuming drive cache: write through
[ 89.858869] sd 2:0:0:0: [sda] 781422769 512-byte hardware sectors (400088 MB)
[ 89.858869] sd 2:0:0:0: [sda] Write Protect is off
[ 89.858869] sd 2:0:0:0: [sda] Assuming drive cache: write through
[ 89.858869] sda: sda1
[ 89.879851] sd 2:0:0:0: [sda] Attached SCSI disk
[ 89.901630] sd 2:0:0:0: Attached scsi generic sg0 type 0
[ 89.963632] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 89.963632] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 106.913629] kjournald starting. Commit interval 5 seconds
[ 106.913629] EXT3 FS on dm-5, internal journal

On 2.6.27.2, I get:

[ 551.484341] usb 1-2.1.1: new high speed USB device using ehci_hcd and address 8
[ 551.677467] usb 1-2.1.1: configuration #1 chosen from 1 choice
[ 551.718201] usbcore: registered new interface driver libusual
[ 551.799287] Initializing USB Mass Storage driver...
[ 551.800330] scsi2 : SCSI emulation for USB Mass Storage devices
[ 551.800694] usbcore: registered new interface driver usb-storage
[ 551.800698] USB Mass Storage support registered.
[ 556.800702] scsi 2:0:0:0: Direct-Access SAMSUNG HD400LD WQ10 PQ: 0 ANSI: 0
[ 556.835190] Driver 'sd' needs updating - please use bus_type methods
[ 556.835928] sd 2:0:0:0: [sda] 781422769 512-byte hardware sectors (400088 MB)
[ 556.836809] sd 2:0:0:0: [sda] Write Protect is off
[ 556.836816] sd 2:0:0:0: [sda] Assuming drive cache: write through
[ 556.837548] sd 2:0:0:0: [sda] 781422769 512-byte hardware sectors (400088 MB)
[ 556.838296] sd 2:0:0:0: [sda] Write Protect is off
[ 556.838307] sd 2:0:0:0: [sda] Assuming drive cache: write through
[ 556.838310] sda: sda1
[ 556.859169] sd 2:0:0:0: [sda] Attached SCSI disk
[ 556.878553] sd 2:0:0:0: Attached scsi generic sg0 type 0
[ 556.946044] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.946055] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.947290] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.947298] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.948539] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.948547] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.949790] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.949798] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.951045] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.951053] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.952290] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.952297] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.954665] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.954673] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.957665] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.957673] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.960791] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.960799] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.963790] sd 2:0:0:0: [sda] Sense Key : No Sense [current]
[ 556.963798] sd 2:0:0:0: [sda] Add. Sense: No additional sense information
[ 556.966915] sd 2:0:0:0: [sda] Sense Key : No Sense [current]

These repeat forever, till I disconnect.

Regards,
Luciano Rocha

--
Luciano Rocha <luciano@eurotux.com>
Eurotux Informática, S.A. <http://www.eurotux.com/>
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