Re: [Bugme-new] [Bug 9458] New: digital camera not recognised properly by the kernel when KDE is running

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On Mon, 26 Nov 2007, Vasilis Vasaitis wrote:

> On Mon, Nov 26, 2007 at 03:03:19PM +0000, Alan Cox wrote:
> > > > > ttyS1: LSR safety check engaged!
> > > > > ttyS1: LSR safety check engaged!
> > > 
> > > Why assign this to the USB developers?  The bug doesn't have anything
> > > to do with USB -- and what is that ttyS1 message doing there?  Is this
> > > some sort of security framework violation?
> > 
> > Its just serial debug info. Presumably ttyS1 got detected at this point
> > in time
>   Negative. These messages appear every time this happens, i.e.
> everytime I plug in the camera while KDE is running. Generally two or
> three of them.

It certainly sounds like one of the programs in KDE is doing something 
to try and access ttyS1, while at the same time preventing usb-storage 
from working correctly.

You could try enabling the usbfs_snoop=y module parameter for usbcore.  
Maybe the dmesg log will show which program is messing things up.

Alan Stern

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