From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Hesse Subject: Re: iSCSI regression with linux 3.9 and 4.0 Date: Fri, 20 Mar 2015 18:59:01 +0100 Message-ID: <20150320185901.0283191c@leda.localdomain> References: <20150320135742.63df219b@leda.localdomain> <1426859486.19806.30.camel@localhost.localdomain> <20150320153104.086f3b46@leda.localdomain> <1426863883.19806.65.camel@localhost.localdomain> <20150320162441.684366b6@leda.localdomain> <1426866365.19806.81.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; boundary="Sig_/A5_/StMr3aj_iobsbJSPCVi"; protocol="application/pgp-signature" Return-path: Received: from mx.mylinuxtime.de ([148.251.109.235]:53249 "EHLO mx.mylinuxtime.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750993AbbCTR7S (ORCPT ); Fri, 20 Mar 2015 13:59:18 -0400 In-Reply-To: <1426866365.19806.81.camel@localhost.localdomain> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Ewan Milne Cc: linux-scsi@vger.kernel.org --Sig_/A5_/StMr3aj_iobsbJSPCVi Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Ewan Milne on Fri, 2015/03/20 11:46: > On Fri, 2015-03-20 at 16:24 +0100, Christian Hesse wrote: > > I found 'max_sectors_kb' which is inside in directory called 'queue'. Is > > that the value you asked for? > >=20 > > for 4.0 git: > >=20 > > # cat max_sectors_kb > > 32767 >=20 > If you change max_sectors_kb to a lower value (e.g. 512) can you get the > device to work? I will check that on monday. Sitting behind a slow dial up connection right now... =20 > There is a max_hw_sectors_kb value but you can't change it. Is it > 32768 also for 4.0? # cat max_hw_sectors_kb 32767 It's 3276*7*, not 32768. > Your device reports a maximum transfer length of 2^32-1 blocks but > I suspect that it might not be actually able to do that. I don't see > what else would be causing the error. Maybe there is a transport > limitation that is getting in the way? What kind of transport limitation can that be? Network MTU and friends shou= ld no be an issue, no? --=20 main(a){char*c=3D/* Schoene Gruesse */"B?IJj;MEH" "CX:;",b;for(a/* Chris get my mail address: */=3D0;b=3Dc[a+= +];) putchar(b-1/(/* gcc -o sig sig.c && ./sig */b/42*2-3)*42);} --Sig_/A5_/StMr3aj_iobsbJSPCVi Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJVDF/lAAoJEIlFIdfMgPR2IcQH/RxjWwhz3fvVmjAPmMyAoOeI 1cTXOokdO/naYni/VE5AfQ+Wuis7qrJEWZHI5al2H/7A0s3gtB288lt5vrxhd9y9 U3COTC9fBC8zpobmnZm9eUuAOCcum8u8ni0IqyCktNmVBNkHoiNo0NQgIc439hz5 wX2cAmPsvOYO0hm1yqekJ+J9SiXEqMcLK5ihMA7NAp68qtxPQLIARyQVCVgtqhH1 sH7rSzqJQ7jRyh0I4YDfPKi2uMs0yDIWaODN8F4THFjXiTzy6M8Hd2GxllUhQu+g 4pb7Cl6/40QPr9VXqk+32Q47f1oHh2I0Gl1mfe3ZUE4l/gk+GK3VhOUaoz06sTA= =XoXC -----END PGP SIGNATURE----- --Sig_/A5_/StMr3aj_iobsbJSPCVi--