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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[-- Attachment #1 --] Bezüglich 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… Regarding the timeout, I think I found the solution – 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… Thanks, -Harry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAlSymHsACgkQLDqVQ9VXb8iTOACfWeMX8xtnytGICVtiZ1Xvaqei s7AAn3sGO7FrxcfoWQPvFcgjvOmoMwga =yOl3 -----END PGP SIGNATURE-----help
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