Date: Thu, 21 May 2015 23:09:37 +0000 From: Eric Joyner <erj@freebsd.org> To: Guy Helmer <guy.helmer@gmail.com>, Christopher Forgeron <csforgeron@gmail.com> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: FreeBSD 9.3 - Intel X520-SR2 stops passing packets Message-ID: <CA%2Bb0zg_0gvmHbVjLyBhA-yiX83ecbDLZz2nmqSLbDwVuXOURDQ@mail.gmail.com> In-Reply-To: <BD7871A4-69C2-49EB-89D4-9EB741E2EB2B@gmail.com> References: <C8B78CF4-184C-4BFE-B848-37A91A3B696B@gmail.com> <CAB2_NwBmpHZZ03wht55=kVHdGk4mVKpFCcmcT=sJ12y7OJSXtA@mail.gmail.com> <BD7871A4-69C2-49EB-89D4-9EB741E2EB2B@gmail.com>
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Are there any log messages printed out by the driver? The sysctls don't really look out of the ordinary, other than the number of sub-64 byte packets. On Thu, May 21, 2015 at 9:10 AM Guy Helmer <guy.helmer@gmail.com> wrote: > > > On May 21, 2015, at 8:52 AM, Christopher Forgeron <csforgeron@gmail.com> > wrote: > > > > A few things: > > > > 1) How long before you have this behaviour? > > > > 2) What's the output of 'netstat -m' when you have the problem? > > > > 3) What is your MTU set to, and do you have TSO on or off? > > > > On Thu, May 21, 2015 at 10:33 AM, Guy Helmer <guy.helmer@gmail.com > <mailto:guy.helmer@gmail.com>> wrote: > > I’ve noticed that there have been reports of problems with Intel > X520-SR2 network interfaces stopping working. I think I’m seeing a similar > issue where the 10Gb interfaces stop receiving traffic (they’re being used > in promiscuous mode to sniff traffic from a tap). ifconfig shows the > interfaces are still active and the links are OK. ifconfig down/up restores > activity. I’ve changed hw.intr_storm_threshold=8000 but I couldn’t tell if > the interrupt storm threshold had been triggered at the time the interfaces > stopped passing traffic. > > It seems to run from hours to days without problems. > > I don’t have the output of “netstat -m” available, but it did not indicate > any mbuf or cluster allocation failures. No jumbo clusters (4k, 9k, or 16k) > were allocated. > > MTU is 1500. TSO is “on” but would seem to be irrelevant — no packets are > transmitted out of these interfaces (verified using “netstat -i”). > > Thanks, > Guy > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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