Date: Tue, 3 Jul 2018 04:35:57 +0000 From: k simon <moremore2@outlook.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: epair failure in production on 11.1-STABLE (r328930) ? weird! Message-ID: <BN7PR13MB2243BEE3F89A0F6C40EFCAF0EE420@BN7PR13MB2243.namprd13.prod.outlook.com> In-Reply-To: <8D7CF4E7-0D5E-4464-AEB8-DEBD7EB6DB7D@lists.zabbadoz.net> References: <20180620095844.9182416723@smtp-relay2.localdomain> <F58994AA-5012-482D-9D80-3DB9EEC16F71@truespeed.com> <8D7CF4E7-0D5E-4464-AEB8-DEBD7EB6DB7D@lists.zabbadoz.net>
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When the host boots, it hints set the epair queue max len to 86016. I did not see any related problem When I set it, it's stable. But epair consumed cpu, it's so easy to touch 100% cpu usage if it's passed high rate packets. Simon 20180703 On 2018/7/3 06:16, Bjoern A. Zeeb wrote: > On 2 Jul 2018, at 21:11, Dr Josef Karthauser wrote: > >> We’re experiencing a strange issue in production failure with epair >> (which we’re using to talk vimage to jails). >> >> FreeBSD s5 11.1-STABLE FreeBSD 11.1-STABLE #2 r328930: Tue Feb 6 >> 16:05:59 GMT 2018 root@s5:/usr/obj/usr/src/sys/TRUESPEED amd64 >> >> Looks like epair has suddenly stopped forwarding packets between the >> pair interfaces. Our server has been up for 82 days and it’s been >> working fine, but suddenly packets have stopped being forwarded >> between epairs across the entire system. (We’ve got around 30 epairs >> on the host). So, we’ve got a sudden ARP resolution failure which is >> affecting all services. :(. > > Ok, that’s a very interesting new observation I have not heard before or > missed. You are saying that for about 30 epair pairs NONE is working > anymore? All 30 are “dead”? > > /bz > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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