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Re: kern/47142: usbhidctl vs. SDL et al.

The following reply was made to PR kern/47142; it has been noted by GNATS.

From: Thomas Klausner <>
Subject: Re: kern/47142: usbhidctl vs. SDL et al.
Date: Wed, 30 Sep 2015 09:47:51 +0200

 The problem seems to be:
 usbhidaction is in uhidread.
 At that point it has both the sc_access_lock and sc_lock.
 mame is in uhidopen.
 It tries to get sc_access_lock for even finding out if it can access
 the device, but hangs since uhidread has it locked.

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