Re: Udev failed to create /dev/sda?

[Romain JACQUET <romain.jacquet.dev@free.fr>]

Anthony Campbell a écrit :
> On 19 Sep 2007, Chris Lale wrote:
>   
> > Romain JACQUET wrote:
> >     
> > > Kevin Mark a écrit :
> > >       
> > > > On Mon, Sep 17, 2007 at 09:32:14AM +0200, Romain JACQUET wrote:
> > > >  
> > > >         
> > > > > After upgrading my distro (unstable), my digital camera stop working.
> > > > > The device /dev/sda1 is never created. The gnome-system monitor show
> > > > > that a process makes 100% I/O latency.
> > > > >           
> > [...]
> >     
> > > I'm currently using a custom 2.6.22 build with debian patchs. But I have
> > > try with a debian kernel like linux-image-2.6.18-4-k7 and it does not
> > > work. That is why, I think the problem involved Udev.
> > >       
> > Perhaps you could try running udevtrigger with the camera plugged in? Just a
> > shot in the dark. From man page: "Trigger kernel device uevents to replay
> > missing events at system  coldplug".
> >
> >     
> I had a similar problem yesterday when my printer stopped working owing
> to a failure of udev to make /dev/lp0. Following a pointer on the
> archives for this list I found a bug report about it, which suggested
> adding parport_pc and /dev/lp0 to /etc/modules. This worked, so perhaps
> you could try adding /dev/sda1?
>
> Anthony
>
>   
Thanks for your answers.

I have try to solve the problem by compile all required modules in the 
kernel. But nothing has changed. I have made a new trace with scsi  
debug and usb debug activated:

Sep 20 21:41:45 SilentBox kernel: usb 2-3: new full speed USB device 
using ohci_hcd and address 2
Sep 20 21:41:46 SilentBox kernel: usb 2-3: Product: NIKON DSC E2000
Sep 20 21:41:46 SilentBox kernel: usb 2-3: Manufacturer: NIKON
Sep 20 21:41:46 SilentBox kernel: usb 2-3: configuration #1 chosen from 
1 choice
Sep 20 21:41:46 SilentBox kernel: scsi0 : SCSI emulation for USB Mass 
Storage devices
Sep 20 21:41:51 SilentBox kernel: scsi 0:0:0:0: Direct-Access     
NIKON    DSC E2000        1.00 PQ: 0 ANSI: 2
Sep 20 21:41:51 SilentBox kernel: sd 0:0:0:0: [sda] 1000945 512-byte 
hardware sectors (512 MB)
Sep 20 21:41:51 SilentBox kernel: sd 0:0:0:0: [sda] Write Protect is off
Sep 20 21:41:51 SilentBox kernel: sd 0:0:0:0: [sda] 1000945 512-byte 
hardware sectors (512 MB)
Sep 20 21:41:51 SilentBox kernel: sd 0:0:0:0: [sda] Write Protect is off
Sep 20 21:41:51 SilentBox kernel:  sda:<7>usb-storage: queuecommand called
Sep 20 21:41:51 SilentBox kernel:  sda1
Sep 20 21:41:51 SilentBox kernel: sd 0:0:0:0: [sda] Attached SCSI 
removable disk
Sep 20 21:42:22 SilentBox kernel: usb 2-3: reset full speed USB device 
using ohci_hcd and address 2
Sep 20 21:42:58 SilentBox last message repeated 2 times
Sep 20 21:42:59 SilentBox kernel: usb 2-3: reset full speed USB device 
using ohci_hcd and address 2
Sep 20 21:43:17 SilentBox kernel: usb 2-3: USB disconnect, address 2
Sep 20 21:43:17 SilentBox kernel: scsi 0:0:0:0: [sda] Result: 
hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK,SUGGEST_OK
Sep 20 21:43:17 SilentBox kernel: end_request: I/O error, dev sda, 
sector 1000944


The log seems to tell that the device had a problem. But it is not true, 
because the device had previously worked under Linux and still run under 
Windows.

Any suggestions?