From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AB445C47092 for ; Sun, 30 May 2021 20:55:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7DDAB6108D for ; Sun, 30 May 2021 20:55:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229875AbhE3U5b (ORCPT ); Sun, 30 May 2021 16:57:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:41456 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229805AbhE3U5a (ORCPT ); Sun, 30 May 2021 16:57:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9FB4760E0B for ; Sun, 30 May 2021 20:55:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622408151; bh=amUoeuvMjFEs42/bioBdr7U4c/JLhyh90fU1jPwiRbM=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=sbHFTd0lah1gg5tssqqWVexXPaJtHTlTOa/j4hBMejgbx7TCYa7f1BI/hSbwF143h 4hbXepa1qfNublExCKXZh3LhFrNo2Qm4A9DHrKbIYv9umunRIfHMnf9sZIWOcrs5PP q4qrLw77zQRLIs1o0k53kYtC9ua2bTUJaDaNlZOoNL25fGVttTep1VekyBhVidhLvy r1wTj0+69D5tOzJBVApFlluWc5kE4N2YiMfTWu60e6cwNbQUZAm8RiyICHHWGbnXYv egyNRMmYob8XOQHcmo3K/TSL+rBacQZCgOkhWVaBycQkKvFkg/9wz9dplZuLP+pSfB bJKo7va+Raxig== Received: by mail-wr1-f52.google.com with SMTP id r10so8747258wrj.11 for ; Sun, 30 May 2021 13:55:51 -0700 (PDT) X-Gm-Message-State: AOAM531cu2uDyI4HdKuA1JXQ/X+B/yVWewpWc6/suNJrUk9Gs6wGw5iH MhR7OSdBY1KKGcL2Iv1BRF1697+Et81+4X4W0J0= X-Google-Smtp-Source: ABdhPJwIkMh6nQBNmFVC/cEUrOTSrnFD9KGdTSQTdQIERj587YKhxUpid32XlugTpgo+f4ex5YsyW0r4VxdXgBMJbxk= X-Received: by 2002:adf:a28c:: with SMTP id s12mr19920144wra.105.1622408150275; Sun, 30 May 2021 13:55:50 -0700 (PDT) MIME-Version: 1.0 References: <60B24AC2.9050505@gmail.com> <60B2E0FF.4030705@gmail.com> <60B36A9A.4010806@gmail.com> <60B3CAF8.90902@gmail.com> In-Reply-To: <60B3CAF8.90902@gmail.com> From: Arnd Bergmann Date: Sun, 30 May 2021 22:54:15 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: Realtek 8139 problem on 486. To: Nikolai Zhubr Cc: netdev , tedheadster , Heiner Kallweit , whiteheadm@acm.org, Jeff Garzik Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sun, May 30, 2021 at 7:19 PM Nikolai Zhubr wrote: > > Hi all, > > 30.05.2021 13:36, Nikolai Zhubr: > > So, 8139too 0.9.18-pre4 as of kernel 2.2.20 is the one that apparently > > works correctly here. I feel the bisect is going to be massive. > > It appears the problem arrived between kernel 2.6.2 and 2.6.3, that is > respectively 8139too versions 0.9.26 and 0.9.27. > Unmodified kernel 2.6.2 works fine, unmodified kernel 2.6.3 shows > reproducable connectivity issues. > > The diff is not small, I'm not sure I can dig through. > Any hints/ideas greatly appreciated. This is apparently when NAPI was introduced into the driver. One thing I noticed here was the handling for shared IRQs changing in the process. Do you happen to have shared IRQs, and if so, can you change it so this card has an IRQ that is not shared with any other device? Arnd