Date: Fri, 16 Sep 2016 14:46:46 -0700 From: hiren panchasara <hiren@strugglingcoder.info> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: Konstantin Belousov <kostikbel@gmail.com>, jch@FreeBSD.org, freebsd-stable@FreeBSD.org Subject: Re: 11.0 stuck on high network load Message-ID: <20160916214646.GR9397@strugglingcoder.info> In-Reply-To: <20160916203057.GH2840@zxy.spb.ru> References: <20160904215739.GC22212@zxy.spb.ru> <20160905014612.GA42393@strugglingcoder.info> <20160914213503.GJ2840@zxy.spb.ru> <20160915085938.GN38409@kib.kiev.ua> <20160915090633.GS2840@zxy.spb.ru> <20160916181839.GC2960@zxy.spb.ru> <20160916183053.GL9397@strugglingcoder.info> <20160916190330.GG2840@zxy.spb.ru> <20160916191155.GM9397@strugglingcoder.info> <20160916203057.GH2840@zxy.spb.ru>
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--F74xYepWx8quU230 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 09/16/16 at 11:30P, Slawa Olhovchenkov wrote: > On Fri, Sep 16, 2016 at 12:11:55PM -0700, hiren panchasara wrote: >=20 > >=20 > > As I suspected, this looks like a hang trying to lock V_tcbinfo. > >=20 > > I'm ccing Julien here who worked on WLOCK -> RLOCK transition to improve > > performance for short-lived connections. I am not too sure if thats the > > problem but looks in similar area so he may be able to provide some > > insights. >=20 > No, this is other case. In may case at this time no network traffic > more then hour. This is some sore of deadlock or like. In my limited understanding, such deadlock like situation can occur without traffic too. Cheers, Hiren --F74xYepWx8quU230 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQF8BAABCgBmBQJX3GhCXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRBNEUyMEZBMUQ4Nzg4RjNGMTdFNjZGMDI4 QjkyNTBFMTU2M0VERkU1AAoJEIuSUOFWPt/lbWoH/i9AjDz8VZy4LyfaQnA59BS8 SYBBVa0dBb/Oru+ltLUdSnG1YUgUfVDapCBBkAoZj4DBDDjFevzxcKBv3Dz4vDIS Bpj6rOtwyqjzrDE/LG3FmT2Nt68PvKzO/Uk3TpluSvdI70q3yr9pzQAmGrAwsIz3 E706nb2fEecETnYP11kwrc9HPyPKJqIA2vOpvg7u5Ixa2PhdtfKrEUycD9Na8pMN qug3UxlhR01w9VMUk7PGyIKc1VvI/RP0hFCIsR8hYdh37vDrPUYDwWOrOjzT+VMR o8S0AItFzScO4Iw4igUQ6WnopGXvAx+ubR1Qpaomr3Lwd1cumLYvTlRWn3GyWCs= =JFDK -----END PGP SIGNATURE----- --F74xYepWx8quU230--
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