Re: [BUG] usb-storage hangs while waiting for device to settle

[Alan Stern]

On Fri, 12 Jun 2009, [UTF-8] Ozan Ã?aÄ?layan wrote:

> Hi,
> 
> One of our users reported that he had some issues with its Sony Walkman
> after switching from 2.6.30_rc7(-git2) to 2.6.30_rc8(-git6).

> 2.6.30_rc8
> -----------
> 
> kernel: [210.259083] usb 2-6: new high speed USB device using ehci_hcd and
> address 5
> kernel: [210.374010] usb 2-6: New USB device found, idVendor=054c,
> idProduct=036e
> kernel: [210.374019] usb 2-6: New USB device strings: Mfr=1, Product=2,
> SerialNumber=5
> kernel: [210.374028] usb 2-6: Product: WALKMAN
> kernel: [210.374033] usb 2-6: Manufacturer: SONY
> kernel: [210.374038] usb 2-6: SerialNumber: 390100011A5487120002D8F517EBC712
> kernel: [210.374216] usb 2-6: configuration #1 chosen from 1 choice
> kernel: [210.381558] scsi7 : SCSI emulation for USB Mass Storage devices
> kernel: [210.381893] usb-storage: device found at 5
> kernel: [210.381899] usb-storage: waiting for device to settle before scanning
> 
> 
> I looked a little bit the differences between rc7 and rc8 and the only commit that could be related to that problem seems to be:
> 
> d5a877e8dd409d8c702986d06485c374b705d340 async: make sure independent async domains can't accidentally entangle
> 
> I'm also attaching the kernel configuration. I'll make him to try
> again with the stable 2.6.30.

If this persists in 2.6.30, report it on the linux-scsi mailing list.

Alan Stern

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