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PR/43032 CVS commit: src/external/cddl/osnet/dev/dtrace

The following reply was made to PR kern/43032; it has been noted by GNATS.

From: "Paul Goyette" <>
Subject: PR/43032 CVS commit: src/external/cddl/osnet/dev/dtrace
Date: Sat, 28 Nov 2015 22:41:36 +0000

 Module Name:	src
 Committed By:	pgoyette
 Date:		Sat Nov 28 22:41:36 UTC 2015
 Modified Files:
 	src/external/cddl/osnet/dev/dtrace: dtrace_modevent.c
 Log Message:
 When loading the module, if devsw_attach() fails, call dtrace_unload()
 to undo the effects of dtrace_load().  And if dtrace_unload() fails,
 panic (since we can't get the system back to its earlier stable state).
 When unloading the module, call devsw_detach() first, to lock out any
 new access.  Then call dtrace_unload().  If dgtrace_unload() fails,
 reattach the devsw, and if that fails, panic.
 Implements fixes described in PR kern/43032
 To generate a diff of this commit:
 cvs rdiff -u -r1.4 -r1.5 src/external/cddl/osnet/dev/dtrace/dtrace_modevent.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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