[Bug 18520] reading memory via /dev/sdX

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------- Additional Comments From ubuntu at juerd.nl  2005-10-28 16:35 UTC -------
I was able to use my client's hard drive again. I couldn't try your mkfs idea,
because the data on this disk is important and the owner is still hoping it can
be rescued some day.

The bug is NOT Ubuntu specific! The same symptoms appear with at least Knoppix 4.0.

Having the drive around again does give me dmesg output to post, though:

[4300435.825000] usb 5-1.2: new high speed USB device using ehci_hcd and address 11
[4300435.897000] scsi3 : SCSI emulation for USB Mass Storage devices
[4300435.899000] usb-storage: device found at 11
[4300435.899000] usb-storage: waiting for device to settle before scanning
[4300440.901000]   Vendor: Maxtor 6  Model: Y060L0            Rev: YAR4
[4300440.901000]   Type:   Direct-Access                      ANSI SCSI revision: 00
[4300440.905000] SCSI device sdb: 120440032 512-byte hdwr sectors (61665 MB)
[4300440.905000] sdb: assuming drive cache: write through
[4300440.908000] SCSI device sdb: 120440032 512-byte hdwr sectors (61665 MB)
[4300440.908000] sdb: assuming drive cache: write through
[4300440.908000]  /dev/scsi/host3/bus0/target0/lun0:<6>sdb: Current: sense key:
No Sense
[4300440.909000]     Additional sense: No additional sense information
[4300440.911000] sdb: Current: sense key: No Sense
[4300440.911000]     Additional sense: No additional sense information
[4300440.912000] sdb: Current: sense key: No Sense
[4300440.912000]     Additional sense: No additional sense information
[4300440.912000]  unknown partition table
[4300440.912000] Attached scsi disk sdb at scsi3, channel 0, id 0, lun 0
[4300440.914000] Attached scsi generic sg2 at scsi3, channel 0, id 0, lun 0,  type 0
[4300440.919000] usb-storage: device scan complete
[4300441.162000] sdb: Current: sense key: No Sense
[4300441.162000]     Additional sense: No additional sense information
[4300441.164000] sdb: Current: sense key: No Sense
[4300441.164000]     Additional sense: No additional sense information
[4300441.166000] sdb: Current: sense key: No Sense
[4300441.166000]     Additional sense: No additional sense information
[4300454.233000] sdb: Current: sense key: No Sense
[4300454.233000]     Additional sense: No additional sense information
[4300454.749000] sdb: Current: sense key: No Sense
[4300454.749000]     Additional sense: No additional sense information

These "No Sense" messages I almost always get when I use broken hard drives via
the USB enclosure, so that's not specific to the memory leaking drive.

>From /proc/usb/devices:

T:  Bus=05 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 11 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=0d49 ProdID=3100 Rev=77.f8
S:  Manufacturer=Maxtor Corporation
S:  Product=Personal Storage 3100
S:  SerialNumber=507010003854
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

The enclosure is not used with the drive it ships with.

The broken drive is:
 Maxtor DiamondMax Plus 9
 60GB ATA/133 HDD
 Code: YAR41VWO
 N,G,C,D
 SN: Y2TA1B8E
 6Y060L0420411
 LBA: 120103200
 Mfg.Date:13JAN2003
 Made in Singapore ( ) A 16

But it has its PCB from another broken drive:
 Maxtor DiamondMax Plus 9
 60GB ATA/133 HDD
 Code: YAR41VWO
 N,M,G,D
 SN: Y2S7EX6E
 6Y060L0420411
 LBA: 120103200
 Mfg.Date:11NOV2002
 Made in Singapore ( ) A 2

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