lkml.org 
[lkml]   [2009]   [May]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.a.30-rc7: fat filesystem misdetected as amiga
On Mon, 25 May 2009, OGAWA Hirofumi wrote:

> "Michael S. Tsirkin" <mst@redhat.com> writes:
>
> > An attempt to mount it under linux 2.6.30-rc7 results in these messages:
> >
> > usb 1-3: new high speed USB device using ehci_hcd and address 7
> > usb 1-3: New USB device found, idVendor=090c, idProduct=6000
> > usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> > usb 1-3: Product: USB2.0 Card Reader
> > usb 1-3: Manufacturer: Generic , .
> > usb 1-3: SerialNumber: 0000001
> > usb 1-3: 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 7
> > usb-storage: waiting for device to settle before scanning
> > usb-storage: device scan complete
> > scsi 2:0:0:0: Direct-Access Generic 6000 PQ: 0 ANSI: 0 CCS
> > sd 2:0:0:0: Attached scsi generic sg2 type 0
> > sd 2:0:0:0: [sdb] 990976 512-byte hardware sectors: (507 MB/483 MiB)
> > sd 2:0:0:0: [sdb] Write Protect is off
> > sd 2:0:0:0: [sdb] Mode Sense: 4b 00 00 08
> > sd 2:0:0:0: [sdb] Assuming drive cache: write through
> > sd 2:0:0:0: [sdb] Assuming drive cache: write through
> > sdb:<6>sd 2:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> > sd 2:0:0:0: [sdb] Sense Key : Illegal Request [current]
> > sd 2:0:0:0: [sdb] Add. Sense: Logical block address out of range
> > end_request: I/O error, dev sdb, sector 0
> > Buffer I/O error on device sdb, logical block 0
> > Dev sdb: unable to read RDB block 0
> > unable to read partition table
> > sd 2:0:0:0: [sdb] Attached SCSI removable disk
> > usb 1-3: USB disconnect, address 7
> >
> > parted seems to display both partitions just fine,
> > and that other OS does not seem to have any trouble
> > accessing the disk.
> >
> > The message 'unable to read RDB block' seems to come from
> > fs/partitions/amiga.c which looks pretty weird.
> >
> > Any idea what info would be helpful in debugging this?
> > Just to clarify, this is not a regression - older linux versions
> > as far back as 2.6.24 seem to behave the same way.
>
> It seems I/O error happened while checking the partition types (sector 0).
> I guess usb people may have knowledge of this. CC to linux-usb.

It's hard to imagine why a device would claim that sector 0 was out of
range!

Try collecting a usbmon trace of these events (instructions in
Documentation/usb/usbmon.txt).

Alan Stern



\
 
 \ /
  Last update: 2009-05-25 17:35    [W:0.411 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site