From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754330AbZEUPjM (ORCPT ); Thu, 21 May 2009 11:39:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754037AbZEUPi4 (ORCPT ); Thu, 21 May 2009 11:38:56 -0400 Received: from mail-ew0-f176.google.com ([209.85.219.176]:65134 "EHLO mail-ew0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754008AbZEUPiy (ORCPT ); Thu, 21 May 2009 11:38:54 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:x-mailer:mime-version :content-type:content-transfer-encoding; b=ifZHxITx7aawTQnbtobMACu199mEBa5Dr229nwQ1Im+UuRjJLplo9X0DgvDTO1VHMm Lh+lCf9bNQlL/Gu3AGVUCNdWrg1wnQBCv4GfNXPn4y8n1UlZOfv03v5FOCxh7vkhM3jr ZPPNgfHdmwXKJC2Zoj5sv57I+QhMW2bB4b0n8= Date: Thu, 21 May 2009 17:38:39 +0200 From: Alejandro Riveira =?UTF-8?B?RmVybsOhbmRleg==?= To: johannes@sipsolutions.net Cc: linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, ariveira@gmail.com Subject: [mac80211 ] Wifi Network slownes bisected Message-ID: <20090521173839.1f20b95d@varda> X-Mailer: Claws Mail 3.7.1 (GTK+ 2.14.4; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by alpha id n4LFdNlL023690 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 I have a rt2500pci card I noticed that my wifi connection has slowed when stitching from 2.6.29.1 to 2.6.29.4 (it is also slow on 30-rc6) Also 2.6.27 (ubuntu) does not suffer it. I bisected and came to the following commit as the culprit I can test patches and if you need more info just ask. $ git bisect good 64e1b00c974ddeae6a60ebb02e1c487371905cea is first bad commit commit 64e1b00c974ddeae6a60ebb02e1c487371905cea Author: Johannes Berg Date: Fri Apr 24 16:05:16 2009 +0000 mac80211: fix basic rate bitmap calculation upstream commit: 7e0986c17f695952ce5d61ed793ce048ba90a661 "mac80211: fix basic rates setting from association response" introduced a copy/paste error. Unfortunately, this not just leads to wrong data being passed to the driver but is remotely exploitable for some hardware or driver combinations. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville Signed-off-by: Chris Wright :040000 040000 e9e479210b46ae45f9c84badd57039df44d4077c ea0b719e549849446e62e065b2570fab5a801895 M net Bisect Log $ git bisect log git bisect start # bad: [186f9b18b94afd0b75a8ec1b394b0f119d479eb6] Linux 2.6.29.4 git bisect bad 186f9b18b94afd0b75a8ec1b394b0f119d479eb6 # good: [8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84] Linux 2.6.29 git bisect good 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 # good: [fda28853bc4bc053ef2fafb5c7d2a26e6ce4b4bf] KVM: Fix missing smp tlb flush in invlpg git bisect good fda28853bc4bc053ef2fafb5c7d2a26e6ce4b4bf # bad: [7843dcfe1115e9412e6e83492e17f9c75b5a062d] mv643xx_eth: OOM handling fixes git bisect bad 7843dcfe1115e9412e6e83492e17f9c75b5a062d # bad: [87b59eac0914ab407df57fe23d880dccd9a9436d] virtio-rng: Remove false BUG for spurious callbacks git bisect bad 87b59eac0914ab407df57fe23d880dccd9a9436d # good: [24016c735e651f179692432f18176348caeb82b0] scsi: mpt: suppress debugobjects warning git bisect good 24016c735e651f179692432f18176348caeb82b0 # good: [5c47524b514b5bb3732c3b893338a210d67da3cd] thinkpad-acpi: fix LED blinking through timer trigger git bisect good 5c47524b514b5bb3732c3b893338a210d67da3cd # bad: [d595990048ad17ba7b0ad50438ed64f88b7c25ca] KVM: MMU: disable global page optimization git bisect bad d595990048ad17ba7b0ad50438ed64f88b7c25ca # bad: [64e1b00c974ddeae6a60ebb02e1c487371905cea] mac80211: fix basic rate bitmap calculation git bisect bad 64e1b00c974ddeae6a60ebb02e1c487371905cea # good: [d2d83e1f527b6b0faf15d54b22c032ed5812d054] ALSA: us122l: add snd_us122l_free() git bisect good d2d83e1f527b6b0faf15d54b22c032ed5812d054 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iQIcBAEBCAAGBQJKFXV/AAoJEDO4iEReSTB26+UP/ixsfr571yVpCkmemShNGJjF qThmtl+zZLxO+O1ok3M/K57DwptyBMdgx2zOQ9PqQatN2g2gyXaFd3R0MJnNr4Sn xQPEBtRALXHvC5b2KxhfgECN1+N3SsB4CK5dUzWepP/Dc16zt0pEXU/ZV7P7v0Ey r8tvY4tPThnHcy/QeQLJuQaechjBEmx1/bN+ZrC5s6wlerHC9Sj/hd5YApTlu9k6 orRQRIv1jQ4UpU3Mr16Ax5EtrspLxBcnf1AxYTln+GKsIg2Q108mTOzwU9ZGu4I8 fEhYbbpThSYx6FR6APtkzOez4BkA97eT4fjpFUKdIauVY+omiTbebLQiwqwLDGhW BLL3x4jMWEzSi1sYGk3q+Z4T8BEKqLsJVrERZZIS/1UCynNBCCxEm+hUOKE3z+Il QsdVBTp43cbWhH2zlbg9sAb+dQ0zxLQ5JEN9JhNVoXGkz3JUJ+vYeI+R4hHONBzA 7nCHVguHNitb94M/rhRf3PVlfI4+UWLKjegw6+Myl/AQnzDc2+iuHK2A2vVDeMN1 7sagdKGizojeS7Mb/i5WAX2E2Gu2HYuCWhVzhiAv3v2kCem1IFVlyFkqFOF6/qxN fcVOCBmgRVyZogfDgQJA8q4dypMyouWFaTd483tawglHzp3tscd6AlyuO8W1jfan xuz7EjfXE8YJWc4NKiJq =Xy0O -----END PGP SIGNATURE----- {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I