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Re: Udev failed to create /dev/sda?

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. 


Interesting things from kern.log when plugging my camera:
Sep 16 18:25:07 SilentBox kernel: usb 1-3: new full speed USB device using ohci_hcd and address 3 Sep 16 18:25:08 SilentBox kernel: usb 1-3: configuration #1 chosen from 1 choice Sep 16 18:25:08 SilentBox kernel: scsi1 : SCSI emulation for USB Mass Storage devices 
Sep 16 18:25:08 SilentBox kernel: usb-storage: device found at 3
Sep 16 18:25:08 SilentBox kernel: usb-storage: waiting for device to settle before scanning Sep 16 18:25:13 SilentBox kernel: scsi 1:0:0:0: Direct-Access NIKON DSC E2000 1.00 PQ: 0 ANSI: 2 Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] 1000945 512-byte hardware sectors (512 MB) 
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Write Protect is off
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Mode Sense: 04 00 00 00
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Assuming drive cache: write through Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] 1000945 512-byte hardware sectors (512 MB) 
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Write Protect is off
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Mode Sense: 04 00 00 00
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Assuming drive cache: write through 
Sep 16 18:25:13 SilentBox kernel:  sda: sda1
Sep 16 18:25:13 SilentBox kernel: sd 1:0:0:0: [sda] Attached SCSI removable disk 
Sep 16 18:25:13 SilentBox kernel: usb-storage: device scan complete
Sep 16 18:25:44 SilentBox kernel: usb 1-3: reset full speed USB device using ohci_hcd and address 
3
Sep 16 18:26:21 SilentBox last message repeated 2 times
Sep 16 18:26:21 SilentBox kernel: usb 1-3: reset full speed USB device using ohci_hcd and address 
3
Sep 16 18:26:42 SilentBox kernel: usb 1-3: USB disconnect, address 3
Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000944 
Sep 16 18:26:42 SilentBox kernel: printk: 102 messages suppressed.
Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000944 Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000944 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000944 Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000936 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000936 Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x07 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000937 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000937 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000938 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000939 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000940 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000941 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000942 Sep 16 18:26:42 SilentBox kernel: Buffer I/O error on device sda, logical block 1000943 Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x01 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000936 Sep 16 18:26:42 SilentBox kernel: sd 1:0:0:0: [sda] Result: hostbyte=0x01 driverbyte=0x00 Sep 16 18:26:42 SilentBox kernel: end_request: I/O error, dev sda, sector 1000937 
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] READ CAPACITY failed
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] Result: hostbyte=0x01 driverbyte=0x00 
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] Sense not available.
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: rejecting I/O to dead device 
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] Write Protect is off
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] Mode Sense: 00 00 00 00 Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] Assuming drive cache: write through Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: rejecting I/O to dead device 
Sep 16 18:26:42 SilentBox last message repeated 3 times
Sep 16 18:26:42 SilentBox kernel: scsi 1:0:0:0: [sda] READ CAPACITY failed




Any ideas to solve the problem?

Did you have a kernel upgrade? if so, try booting with the last kernel
to see if it fixes it.
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. 

Any other ideas?
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