2.2.14 USB problem

["Roeland Th. Jansen" <roel@grobbebol.xs4all.nl>]

I recently bought a fujifilm finepix 1300. Cool stuff and works with
minimal effort with USB.

However, after a few days, I was not able tomount the usb mass storage
of the cam anymore. It reposted at mount :

mount: /dev/sdb1 is not a valid block device

checked the process table and saw several usb processes in Z state. I
killed their paret and that went away. still usb-storage was loaded.
Tried to remove it -- oops process in D state. Note that khubd also was
in a Z state. All was not recoverable so a restart was needed.


USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
root         8  0.0  0.0     0    0 ?        Z    Nov16   0:00 [khubd <defunct>]
root     18297  0.0  0.0  1568  496 ?        D    11:13   0:00 rmmod usb-storage

when going singel user I saw :

pci_pool_destroy 00:07.2/uhci_desc e851ec000 busy
                                   d5d4c0000 busy


also in the logs stuff :

kernel: usbdevfs: USBDEVFS_CONTROL failed dev 29 rqt 128 rq 6 len 4 ret -6 
kernel: usb-uhci.c: ENXIO 80001d80, flags 0, urb c94880c0, burb c9488dc0 
kernel: scsi3 : SCSI emulation for USB Mass Storage devices
kernel:   Vendor: Fujifilm  Model: FinePix 1400Zoom  Rev: 1000
kernel:   Type:   Direct-Access ANSI SCSI revision: 02
kernel: Attached scsi removable disk sdc at scsi3, channel 0, id 0, lun 0
kernel: usb-uhci.c: ENXIO 80001d80, flags 0, urb c9488dc0, burb c94880c0
last message repeated 2 times
kernel: SCSI device sdc: 16000 512-byte hdwr sectors (8 MB)
kernel: sdc: Write Protect is off
kernel:  sdc: sdc1


note that the initial sdb1 now all over sudden was changed into sdc1.

hoe somebody has some use for this info.

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