Date: Sun, 11 Jan 2015 16:36:16 +0100 From: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> To: Jack Vogel <jfvogel@gmail.com> Cc: FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: igb(4) watchdog timeout, lagg(4) fails Message-ID: <54B29870.5020706@omnilan.de> In-Reply-To: <CAFOYbcmcWNH5UbkMmp=sEWPOC7Z3uLKoY-%2BbFDT254%2BqZR=D3A@mail.gmail.com> References: <54ACC6A2.1050400@omnilan.de> <54AE565D.50208@omnilan.de> <54AE5A6B.7040601@omnilan.de> <54AFA784.6020102@omnilan.de> <CAFOYbcn0F1QXajUZ2XOncSg8z9xjuCQtzC=Siteyrq%2BDkvAw-A@mail.gmail.com> <54B10432.8050909@omnilan.de> <CAFOYbcmcWNH5UbkMmp=sEWPOC7Z3uLKoY-%2BbFDT254%2BqZR=D3A@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigC234BA70BC6B9ED425A25F1C Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Bez=FCglich Jack Vogel's Nachricht vom 10.01.2015 19:32 (localtime): > Did you say this system is a VM under ESX? Yes, but igb(4) isn't used as VF (SR-IOV), but via VT-d. Like mentioned, the setup never showed any unexpected errors and has been reliably withstanding single-component-failures as designed for more than one year. But now the watchdog timeout leaves one igb(4) nic in unoperational state, but lagg(4) doesn't notice that there's a problem with that nic :-= ( I think a watchdog reset should bring if_igb down and only up again if it's confirmed that the reset succeeded and the nic is operational again.= Or lagg(0) would need to do some line testing. It's done with LACP, but in that environment I don't have LACP stackable available. So I'm left with l2hash=85 Regarding the timeout, I think I found the solution =96 but it's not evident yet. Besides the FreeBSD update from 9.1 to 10.1 (-stable) I noticed that the VT-d routing changed. So I spread the PCI-slot numbers differently to make igb0 share it's virtual APIC line with some other cards. No more watchdog timeout until now=85 Thanks, -Harry --------------enigC234BA70BC6B9ED425A25F1C Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAlSymHsACgkQLDqVQ9VXb8iTOACfWeMX8xtnytGICVtiZ1Xvaqei s7AAn3sGO7FrxcfoWQPvFcgjvOmoMwga =yOl3 -----END PGP SIGNATURE----- --------------enigC234BA70BC6B9ED425A25F1C--
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