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Re: kern/47506

On 05/02/14 05:35, Quentin Garnier wrote:
The following reply was made to PR kern/47506; it has been noted by GNATS.

From: Quentin Garnier <>
Subject: re: kern/47506
Date: Fri, 2 May 2014 03:16:43 +0000

It seems to me there is a race between tap_start() and tap_dev_poll().
  The splx() call in tap_dev_poll() needs to be moved after the call to
However, I'm not entirely certain how that interacts with the spin
  mutex that protects the selrecord() call.

mutex(9) and spl(9) interact appropriately :)

First spin mutex_enter saves spl and last spin mutex_exit restores that spl.


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