Re: [linux-usb-devel] [BUG] USB_PERSIST

[Alan Stern]

On Mon, 26 Nov 2007, Raymano Garibaldi wrote:

> > Wait a minute.  You're saying that  USB Persist worked under 2.6.21
> > because it wasn't available?  That makes no sense.  Besides, if you
> > don't like USB Persist under 2.6.23, you can always eliminate it by
> > turning off CONFIG_USB_PERSIST.
> >
> 
> I have tried this. Simply turning off CONFIG_USB_PERSIST doesn't work.
> In this case the USB drive file system is unmounted on resume, even if
> the drive remained plugged in during suspend.

Something about this doesn't sound right.

When you have CONFIG_USB_PERSIST enabled, do you remember to turn on 
the Persist feature for the root fs device by writing a "1" to the 
device's power/persist file in sysfs?

Can you try building a kernel with CONFIG_USB_PERSIST and 
CONFIG_USB_DEBUG both enabled, and post the dmesg log from immediately 
after resuming?

Alan Stern

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