Date: Sun, 21 Oct 2012 15:46:48 -0700 From: David Wolfskill <david@catwhisker.org> To: Alexander Motin <mav@FreeBSD.org> Cc: stable@FreeBSD.org Subject: Re: stable/9 @r241776 panic: REDZONE: Buffer underflow detected... Message-ID: <20121021224648.GE1609@albert.catwhisker.org> In-Reply-To: <508477A8.2040609@FreeBSD.org> References: <20121020141019.GW1817@albert.catwhisker.org> <20121021121356.GJ35915@deviant.kiev.zoral.com.ua> <20121021163322.GB1730@albert.catwhisker.org> <20121021164634.GC1730@albert.catwhisker.org> <20121021174054.GM35915@deviant.kiev.zoral.com.ua> <50843EB6.8030407@FreeBSD.org> <20121021202346.GB1609@albert.catwhisker.org> <5084713A.1050200@FreeBSD.org> <508477A8.2040609@FreeBSD.org>
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--ni93GHxFvA+th69W Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 22, 2012 at 01:31:04AM +0300, Alexander Motin wrote: > ... > > I've used your kernel config and my test system was unable to boot from > > NFS, while GENERIC kernel boots fine. I haven't got panic, but boot just > > stopped on root mounting. You have so many options specified there so I > > can't predict which of them could cause this. Now I am trying to binary > > search for the problematic one(s). >=20 > Sorry. false alarm. I was just closed firewall in your kernel config.=20 > Without it my test system boots your kernel without any problem. > ... OK. I tried the watchpoint patch mjg@ sent; as noted in my response to him, I did not see the problem recur when I booted the resulting kernel. And given your observation, as well as that I've updated 4 other stable/9 systems (sources at r241801 for 3 of them; at r241786 for the other), none of which exhibited the problem, I suspect that something is remarkably sensitive to the storage layout. Hmmm... Peace, david --=20 David H. Wolfskill david@catwhisker.org Taliban: Evil men with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --ni93GHxFvA+th69W Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlCEe1cACgkQmprOCmdXAD3u4wCdHcUodAPaeSMDz6Dm2qUBciqO roIAn1tyuNSO+Ovd9OQ2B1E/EZajognY =K1UT -----END PGP SIGNATURE----- --ni93GHxFvA+th69W--
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