truss with -f = application hang

[Steven Hartland]

When trying to trace an app with truss -f to trace descendants the application
will always hang. Without -f everything is fine but we dont get the decendants
calls.

This is when running on FreeBSD 6.2-RELEASE-p7, the application in this test
is a linux app and we are running linux_base-fc-4_9.

Anyone got any ideas about this?

    Regards
    Steve

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