Date: Tue, 15 Jul 2014 12:00:49 +0200 From: Borja Marcos <borjam@sarenet.es> To: Stefano Garzarella <stefanogarzarella@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, freebsd-current <freebsd-current@freebsd.org>, Luigi Rizzo <rizzo@iet.unipi.it>, Xin LI <d@delphij.net> Subject: Re: Fix Emulex "oce" driver in CURRENT Message-ID: <FB5130A7-B9CF-4CB0-BD21-94637C1B608F@sarenet.es> In-Reply-To: <CAO0mX5b4txBAvnjFEJPFgzvraOxY=YKH-HYQnf8B-OVPk3yZHA@mail.gmail.com> References: <CA%2BhQ2%2BimE=%2BncZwpHGhWb175mYiAKV78MV=Dfc1GJf=3XYciPQ@mail.gmail.com> <453BA9EC-BB63-4258-8141-847F41315E1E@sarenet.es> <CA%2BhQ2%2BjaP2fuMaCoorLpGu=uWDPgHy3at5UdtLAOXM2d6uoWkg@mail.gmail.com> <6C8CF68D-68E2-4168-AA0A-6A629D363371@sarenet.es> <CAO0mX5bmXnQGuEgSYoBxy8bQK5i3B2MG0LBmJ7A178W1B5sqDw@mail.gmail.com> <EAE3F867-D084-43EC-962B-3F2EB5782C68@sarenet.es> <CAO0mX5Ys%2BraCwaQT0eB6jBFWGGAJ6kStsWPRVKOkfNdsP=17Kg@mail.gmail.com> <B8458978-1ACC-4083-B29C-E1DFFCFCA3EA@sarenet.es> <CAO0mX5a=VWG_bRhvpL3WCZjvbVRMY2hfgfRLc8qHAtVKO3=-2w@mail.gmail.com> <CAO0mX5b4txBAvnjFEJPFgzvraOxY=YKH-HYQnf8B-OVPk3yZHA@mail.gmail.com>
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On Jul 15, 2014, at 11:45 AM, Stefano Garzarella wrote: > I just tried to run iperf3 with this patch and STABLE-10 and it seems = to > work. > Do you have a panic? So far, so good. I've ran a couple of iperf3 tests (60 seconds, trying = both directions) and it doesn't crash. Without the fixes I obtained a panic quite reliably, in less than 30 = seconds. Still trying. But the bugs you mentioned (lack of locking and = deallocating, etc) seem to be consistent with the kind of failures I saw = and their apparent randomness. So, asking for spiritual counsel now. Would you use this driver in a = production environment instead of the 747 version downloaded from = Emulex? I think the latter is giving slightly better performance but, = anyway, I disable LRO and TSO because I see a horrible impact on NFS = performance. Cheers, Borja.
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