Re: usbip: possible recursive locking detected

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On Tue, Jan 26, 2010 at 10:51:22PM +0100, Németh Márton wrote:
> Hi,
> 
> I was playing with the usbip found in Linux kernel 2.6.33-rc4. I did the following
> steps:
> 
> 1. modprobe usbip
> 2. connected a Labtec Webcam 2200 (093a:2626) to the computer
> 3. usbip_bind_driver --usbip 2-1
> 
> Then I get the INFO message in dmesg:

This might be due to a patch in the sysfs core that needs to be fixed,
or it could be a deadlock.  Look at the codepath where we are removing a
device by writing to a sysfs file and make sure we aren't deleting
ourself.  If we are not, it's ok, if we are, we need to fix that to use
the proper api calls to do this safely.

Hope this helps,

greg k-h
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