[vbox-dev] [Patch] Fix locking problems in vboxnetflt for FreeBSD

[Fredrik Lindberg]

Hi

Attached is a patch that fixes a locking problem with the vboxnetflt
module for FreeBSD.  The issue is the possibility that a mutex inside
virtualbox might sleep while a spin lock is held in the FreeBSD network
stack.

The issue was originally reported to the freebsd-emulation mailing list
by Sean Farley.  He confirmed that this patch solved the problem he was
seeing. Additionally the patch has been included in the FreeBSD ports
version of VirtualBox, so it should have gained sufficient testing.

The patch is under the MIT license.

Fredrik
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