From owner-freebsd-stable@FreeBSD.ORG Sat Aug 24 20:55:20 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 79998905 for ; Sat, 24 Aug 2013 20:55:20 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0292822C9 for ; Sat, 24 Aug 2013 20:55:19 +0000 (UTC) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.14.7/8.14.7) with ESMTP id r7OKtFff036353; Sat, 24 Aug 2013 23:55:15 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.8.3 kib.kiev.ua r7OKtFff036353 Received: (from kostik@localhost) by tom.home (8.14.7/8.14.7/Submit) id r7OKtFBk036352; Sat, 24 Aug 2013 23:55:15 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sat, 24 Aug 2013 23:55:15 +0300 From: Konstantin Belousov To: J David Subject: Re: NFS deadlock on 9.2-Beta1 Message-ID: <20130824205515.GS4972@kib.kiev.ua> References: <158996730.12825374.1377265437471.JavaMail.root@uoguelph.ca> <20130824174103.GQ4972@kib.kiev.ua> <20130824193814.GR4972@kib.kiev.ua> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mD7kNQSobhB8uZXx" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on tom.home Cc: Rick Macklem , freebsd-stable X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 24 Aug 2013 20:55:20 -0000 --mD7kNQSobhB8uZXx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, Aug 24, 2013 at 04:11:09PM -0400, J David wrote: > On Sat, Aug 24, 2013 at 3:38 PM, Konstantin Belousov > wrote: > > No, at least not without reverting the r254754 first. The IGN_SBUSY pa= tch > > is not critical there. >=20 > There is lots of other stuff in r250907 / reverted by r254754. Some > of it looks important for sendfile() performance. If testing this > extensively in the next few days could help get that work back into > 9.2 we are happy to do it, but if it's too late then we can leave it > for those on stable/9. The revert in the r254754 is only a workaround for your workload, it does not fix the real issue, which can be reproduced by other means. I am not sure would re allow to merge the proper fix, since we are already somewhere in RC3. --mD7kNQSobhB8uZXx Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iQIcBAEBAgAGBQJSGR2yAAoJEJDCuSvBvK1BPK0QAI/+EEd+Cz1AqvYWM6Hqv5VH cgtoNKS/igKmWCdJxCHFsDvBoL4P2BKSLRxUo2xPKsztV1P1SOp4ocqo/BJYCivi vzTM81p90zusw3DmVt1y/JoZveObeug9lmDIcl5GmhTE2kyVMoPDZ+Q85Z4l9FIU JyhVFmq6Dj89u0ECOO3F5DCwXJW9OJeRNZEBGDVR/KWZQQW6bXA/cIFOQJjbuKza iAacyTxqj+uitd+EnkhIHEZ27GhGcaOC1JGbRr24fmm0y38Mghob0s7GBn0M4vfw I0a381tjdU8plBwYOjmaDQAB9GcmL+KIRw3vJlMntMmXzhejwYYim2+2vSNmQxBr g97rc7RUxApJef/oAttQZ4A++Ev0M3YlL/EG48J/IDcIa0aQjM9sXxCAOjF9cz7K Afxg9OL7yVg3udSLVtF2SOJCkUr3SB6TRcDsN5yNH+DGnlqboUf/9XlgtjFsxVum smCwr+th/yr6SO5GaV/o/ZJJX4el3MbI0dX37DLEbT6NhmUUSJXtStqBDSaNHvNC UKLT9kl77ICdzVlstrUXUvwcAVtXMdOnqwdxL4L+JtOjmAg6FuzZX42YiCqXG0Bj nPzoqwja/pqxJEvzi1xIXFE+ctdxCltdz0P2D/BOfJhGsn1tYx4aHypyg9uHqxQb m3Y7Q6jpESLUh4morUwy =ZWw5 -----END PGP SIGNATURE----- --mD7kNQSobhB8uZXx--