Date: Mon, 19 Sep 2011 13:47:29 -0400 From: Arnaud Lacombe <lacombar@gmail.com> To: pyunyh@gmail.com Cc: Adrian Chadd <adrian@freebsd.org>, freebsd-hackers@freebsd.org, Hooman Fazaeli <fazaeli@sepehrs.com>, Jack Vogel <jfvogel@gmail.com>, jfv@freebsd.org, Luigi Rizzo <rizzo@iet.unipi.it> Subject: Re: intel checksum offload Message-ID: <CACqU3MUzErON9SR%2BtMX%2B4SNdFH=vozaqUP1qt7wZebAp1hWESg@mail.gmail.com> In-Reply-To: <20110919165920.GA4202@michelle.cdnetworks.com> References: <20110917203218.GC13993@michelle.cdnetworks.com> <CACqU3MXffDvH%2B5E3_excGswvsYx0eJ1WxTP16tswy9eK%2BvyH%2Bg@mail.gmail.com> <20110918210647.GA8930@onelab2.iet.unipi.it> <CACqU3MXSms9M-H9jj6zf5qWo05SLNCDBwDv%2B%2BmW5iTNjNLuKkA@mail.gmail.com> <20110919020131.GA11657@onelab2.iet.unipi.it> <CACqU3MV3MHGpV0SR36Ur9cPfGzh4K82dop1mXVRkk51mTCpTrQ@mail.gmail.com> <CAFOYbcktOR4SOuktOfQc0WvbQvH-9ViUeAQ4JJax_VbebWnC6w@mail.gmail.com> <4E76E5B9.9080301@sepehrs.com> <CAJ-Vmo=yaMTeSi07-zZNMnarwazpYUWSvit33Bfpx8Wd0U%2BkEg@mail.gmail.com> <CACqU3MWEdcDeUtFocS9%2B1nrJQ5VjwJDr8nggyRz7JLN6ZbK=QQ@mail.gmail.com> <20110919165920.GA4202@michelle.cdnetworks.com>
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Hi, On Mon, Sep 19, 2011 at 12:59 PM, YongHyeon PYUN <pyunyh@gmail.com> wrote: > On Mon, Sep 19, 2011 at 10:17:22AM -0400, Arnaud Lacombe wrote: >> Hi, >> >> On Mon, Sep 19, 2011 at 5:28 AM, Adrian Chadd <adrian@freebsd.org> wrote: >> > Arnaud (and others), >> > >> > Liaising with vendors is not an easy task. The reason why Intel (and >> > other vendors) don't supply detailed history and reasoning for their >> > development efforts is that their engineers are likely tasked with >> > "making it work" versus "writing lots of stuff down for public >> > release." In some instances, the vendor support of FreeBSD (and "free" >> > open source in general) is done as a side-project by some of the >> > engineers inside the company. >> > >> > So in this case, you may find that Jack and the other engineers at >> > Intel just don't have the time or resources to dedicate the kinds of >> > feedback and support you seem to be after. He and others likely have a >> > huge set of tasks to do at work and none of them officially include >> > "support FreeBSD/Linux developers by providing detailed feedback and >> > assistance." So whenever Jack pops up to help out, he's likely doing >> > it in his spare time. :-) >> > >> Yes, and he seems to really like to waste his spare time by repeating >> me for two months to increase `kern.ipc.nmbclusters' to fix issue I >> was seeing, when the code was clearly buggy, even when I sent him >> patchs fixing issues. >> > > If you think you encountered a driver bug, could you share it with > us? I didn't closely follow em(4)/lem(4)/igb(4) changes for a long > time so I'm not sure whether I can come up with reasonable fix for > the issue but I may be able to help you. > They ended up being fixed, thanks :-) Now, up until next week, we were struggle on the mbuf corruption I reported on freebsd-net@, but I do not think it is a driver issue per-se. - Arnaud
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