Date: Tue, 2 Mar 2010 16:33:16 GMT From: jh@FreeBSD.org To: lolownia@gmail.com, jh@FreeBSD.org, freebsd-geom@FreeBSD.org Subject: Re: kern/98034: [geom] dereference of NULL pointer in acd_geom_detach by g_event Message-ID: <201003021633.o22GXG1R070425@freefall.freebsd.org>
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Synopsis: [geom] dereference of NULL pointer in acd_geom_detach by g_event State-Changed-From-To: open->closed State-Changed-By: jh State-Changed-When: Tue Mar 2 16:27:56 UTC 2010 State-Changed-Why: There are multiple problems related to acd(4) detach: 1. acd_modevent() ignored the return value from g_modevent(). This has been fixed in r198519 and it may actually prevent the reported panic. 2. acd(4) lacks reference counting and softc locking. (PR kern/125139) 3. There are problems with GEOM class unloading. (PR kern/139847) http://docs.freebsd.org/cgi/mid.cgi?20081216210311.GA5229 I am closing this PR because (1) has been fixed and there are duplicate PRs to cover the other issues. http://www.freebsd.org/cgi/query-pr.cgi?pr=98034
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