Date: Sat, 17 Dec 2016 20:50:15 +0100 From: Oliver Pinter <oliver.pinter@hardenedbsd.org> To: "Kenneth D. Merry" <ken@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r307684 - head/sbin/camcontrol Message-ID: <CAPQ4ffvhF-vdwyJ2GKe5UpyGeuRdqdUMRGSzYY9W4SX%2Bda7mAQ@mail.gmail.com> In-Reply-To: <20161212223354.GA16028@mithlond.kdm.org> References: <201610201942.u9KJgQOR062772@repo.freebsd.org> <CAPQ4ffvpCmQmo2qwdmeNqdOAKZxieq5BAdptvtmT58nu2oMdqQ@mail.gmail.com> <20161212223354.GA16028@mithlond.kdm.org>
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On 12/12/16, Kenneth D. Merry <ken@freebsd.org> wrote: > On Sun, Dec 11, 2016 at 00:49:12 +0100, Oliver Pinter wrote: >> On 10/20/16, Kenneth D. Merry <ken@freebsd.org> wrote: >> > Author: ken >> > Date: Thu Oct 20 19:42:26 2016 >> > New Revision: 307684 >> > URL: https://svnweb.freebsd.org/changeset/base/307684 >> > >> > Log: >> > For CCBs allocated on the stack, we need to clear the entire CCB, not >> > just >> > the header. Otherwise stack garbage can lead to random flags getting >> > set. >> > >> > This showed up as 'camcontrol rescan all' failing with EINVAL because >> > the >> > address type wasn't CAM_DATA_VADDR. >> > >> > sbin/camcontrol/camcontrol.c: >> > In rescan_or_reset_bus(), bzero the stack-allocated CCBs before >> > use instead of clearing the body. >> > >> > MFC after: 3 days >> > Sponsored by: Spectra Logic >> >> The MFC of this commit is missed both for 10-STABLE and 11-STABLE. Is >> this still in plan to do? > > Done, thanks for the reminder! Thanks! Slightly related problem what I found on one of my INVARIANTS enabled kernel is the following: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=215356 . A similar change what this is required in smartmontools too. > > Ken > -- > Kenneth Merry > ken@FreeBSD.ORG >
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