Bug 41842

Summary:	USB disk keeps getting reset
Product:	Drivers	Reporter:	Niels Thykier (niels)
Component:	USB	Assignee:	Greg Kroah-Hartman (greg)
Status:	RESOLVED INVALID
Severity:	normal	CC:	jrnieder
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.0.3 (debian 3.0.0-3)	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	dmesg log (from boot) lsusb -v output

Description Niels Thykier 2011-08-28 11:15:51 UTC

Created attachment 70582 [details]
dmesg log (from boot)

I have a specific USB harddisk that keeps getting resets and never appears as a device on the system.  It used to work just fine, but as I did not use it for anything important when it stopped working, I did not do the proper paperwork back then.  Unfortunately this means I cannot tell you when it last worked; I guess it has been over a year and perhaps even 2 years.

I have used USB pens after the harddisk stopped, so I have a feeling it is specific to the device.  It is a "Packard Bell Store & Save" (~750 GB) and the model number is "HD D2 U2".  It has an external power and has a little "USB 2.0" next to its USB plug.
  I have tried in once in a Windows a while back, but without any luck.  Though I could not tell if this was because the disk was broken or because Windows had no clue to handling the underlying file system[1].

I am attaching my dmesg log (fresh boot and with the USB being turned on when the boot has been completed).  I will follow up with a lsusb -v output.  The machine uses a 64bit kernel with 32bit user land.

This is a forward of the Debian bug #639462[2].  I have used the Debian kernel for my testing and (to my knowledge) it contains the "EHCI: fix direction handling for interrupt data toggles" commit (see [2] comment #22)

~Niels

[1] It is encrypted with cryptsetup luksOpen/luksClose and has (as I recall) an xfs layer beneath that.

[2] http://bugs.debian.org/639462

Comment 1 Niels Thykier 2011-08-28 11:21:33 UTC

Created attachment 70592 [details]
lsusb -v output

As far as I can tell, the harddisk is the last entry.  Other than it is identified as "Cypress"[1] and the MaxPower is 2mA[2] I do see anything that is immediately odd (but then again, I do not work with this a lot).

[1] The disk itself does not mention "Cypress" anywhere; only Packard Bell.  Though I guess this could comparable to a "Dell" with "Intel Inside".

[2] The power line and the disk seems to say "5V 2A" and "12V 1.5A" (yes, both appears on the disk and the transformer on the powerline).

Comment 2 Niels Thykier 2011-08-28 12:23:12 UTC

The oldest file (I can think of) I would have moved to the drive (but didn't) is from is from early Sep 2010 and I can think of some files around late Dec 2009 that I most likely moved to the disk.  I created (or updated) an (autofs) symlink to the drive in Sep 2008, which implies it definitely worked back then.

~Niels

Comment 3 Greg Kroah-Hartman 2012-02-22 21:08:48 UTC

All USB bugs should be sent to the linux-usb@vger.kernel.org mailing 
list, and not entered into bugzilla.  Please bring this issue up there,
if it is still a problem in the latest kernel release.