Date: Mon, 5 Oct 2015 21:23:16 +0300 From: "Andrey V. Elsukov" <ae@FreeBSD.org> To: Julian Kornberger <juliank@tzi.de>, "net@freebsd.org" <net@freebsd.org> Subject: Re: Page fault after destroying/reconfiguring GRE interface Message-ID: <5612C014.7090506@FreeBSD.org> In-Reply-To: <5612B688.9000803@tzi.de> References: <56106056.7040006@tzi.de> <56118C9A.7080303@FreeBSD.org> <5612B688.9000803@tzi.de>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --v4MBjnxGTQoH8KvMS76eB9v6AHl4nNCnD Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable On 05.10.2015 20:42, Julian Kornberger wrote: > Hi Andrey, >=20 > I compiled and installed a new Kernel with your patch, but is does not > help. It seems as if the crash only occurs if I have two GRE interfaces= > and I destroy the second one (gre1). If I destroy the first one (gre0),= > it does not crash: >=20 > gre0 with 10.9.0.13 -> 10.9.0.12 > gre1 with 10.9.0.15 -> 10.9.0.14 (destroyed) It seems this panic now only possible when ip_encap list contains stale pointer to gre softc. And since you use releng/10.2 branch, try also apply this patch from stable/10: https://svnweb.freebsd.org/base?view=3Drevision&revision=3D288529 --=20 WBR, Andrey V. Elsukov --v4MBjnxGTQoH8KvMS76eB9v6AHl4nNCnD Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJWEsAUAAoJEAHF6gQQyKF6K1gH/14ZAxgVtAzTyscc6OVcDBIy lfx7mvYQkhQzGUqZXESiOjIfSmOozVWXHVHf1EiaQ8lqpf2iToF/PlasM+LwlncE nUVSQAsmvO9xXlK/z5UEzi/RhKrquwZaoXqZNxBgiRwvwIuIlPYi1eTEkdR6EjD2 9y87vhW3aRDjJbEGxT6E4RK8BerNH4ZNEV1ETz/VGQ4XpoSEl0FPZPiQRIgVWaU1 HkbwPtOI8bQsoOMYYSVvGv3hBTQPR91Qm3jSX+UuewIwU9GnCH1plir59UskHMbh 8frpmndwhn0sim+BVTX5UOvWlbMYqmr71h3ZYZwpzX/612tDw88tcxh9ztyaOTs= =GSEa -----END PGP SIGNATURE----- --v4MBjnxGTQoH8KvMS76eB9v6AHl4nNCnD--
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