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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 382A1C00140 for ; Tue, 26 Jul 2022 15:50:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239315AbiGZPuM (ORCPT ); Tue, 26 Jul 2022 11:50:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229705AbiGZPuL (ORCPT ); Tue, 26 Jul 2022 11:50:11 -0400 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0CDABA9 for ; Tue, 26 Jul 2022 08:50:09 -0700 (PDT) Received: by mail-io1-f71.google.com with SMTP id g22-20020a056602249600b0067caba4f24bso1795868ioe.4 for ; Tue, 26 Jul 2022 08:50:09 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=9GYqC1SZgEt4OU0y/SLneyFSp1BWvBVjECk5yA8DcYM=; b=7217OWXdatvx9MJXDLonDWQDyBpapyDIvowV4PJZ/4DgcjF0Fibm8d2DA32kj1rG51 Ttih8OnkR6IqvwsQQD3/t9k4oQ1ZTQJ7g2xHP024h1+/saNkkpSx58p+luRGB3N03qqd lf65CaNC0vbD+anPicW/kiuOLb8AeWBvUML9OCvKCikMIxM7TF9UlMBtrWKPTLIfg05r /zdGc96+4vjf1NUjw/Smm35sndrDpaityUWAxRfxmMcZsrBO+ROdE60e2XtCa2ShTaWr 84xZ9W4i78lvn295rcbo1BCiHzTWSVWmK4VxwPR4O2Uk5MD66o8B5s74G4+2oa7qrKQU nOHA== X-Gm-Message-State: AJIora+nK6xMSQTcoG3V/abxrNE60vgBmtXUyyr+mlmwIht6qKMbzYrt vG/e8NUSQxiZ2r9fOVHpwyrHotMh7STQhFycHvfuzSHj+6tu X-Google-Smtp-Source: AGRyM1vBd0kqUwkUfm5c1V+ohC7MFmfH5XMdmZakPq54XdOfuY0OBKqF5lk3fVr3SxlyFz09/GlrCA3SVG/TcLfJN1P1MSUnspC3 MIME-Version: 1.0 X-Received: by 2002:a6b:3ec2:0:b0:67c:6baf:a51f with SMTP id l185-20020a6b3ec2000000b0067c6bafa51fmr6408311ioa.160.1658850609194; Tue, 26 Jul 2022 08:50:09 -0700 (PDT) Date: Tue, 26 Jul 2022 08:50:09 -0700 In-Reply-To: <00000000000026864605c611cc51@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004bee3605e4b74106@google.com> Subject: Re: [syzbot] INFO: rcu detected stall in net_tx_action From: syzbot To: axboe@kernel.dk, cgroups@vger.kernel.org, fweisbec@gmail.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, ming.lei@redhat.com, mingo@kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tj@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 0a9a25ca78437b39e691bcc3dc8240455b803d8d Author: Ming Lei Date: Fri Mar 18 13:01:43 2022 +0000 block: let blkcg_gq grab request queue's refcnt bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1004f05a080000 start commit: d6765985a42a Revert "be2net: disable bh with spin_lock in .. git tree: net kernel config: https://syzkaller.appspot.com/x/.config?x=7ca96a2d153c74b0 dashboard link: https://syzkaller.appspot.com/bug?extid=3ba0493d523d007b3819 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c9edc8300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=172463c8300000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: block: let blkcg_gq grab request queue's refcnt For information about bisection process see: https://goo.gl/tpsmEJ#bisection