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 7F8F2C54E76 for ; Fri, 6 Jan 2023 17:19:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235467AbjAFRTA (ORCPT ); Fri, 6 Jan 2023 12:19:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53294 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235556AbjAFRSa (ORCPT ); Fri, 6 Jan 2023 12:18:30 -0500 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6569AC0E for ; Fri, 6 Jan 2023 09:18:29 -0800 (PST) Received: by mail-io1-f70.google.com with SMTP id m5-20020a6b7f45000000b006fc1dded1b9so1100362ioq.18 for ; Fri, 06 Jan 2023 09:18:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=KNubMI1GatQvLGtaWUgQht+S/ChcWAcDTlFlP/zM3lw=; b=go+xWYSLLj/Qu+5+fAhgPJO44BTeeb2UYcVJB7dDm9J2BGOdr4OczZ9ZoZnjqEgPyU NK9q96pAdxLlwNjPQ2Nd3y0fZUo03HIura4IqFEmaKoTJ26XhbSguActStvE78+aUK5W e3a6IlUSIgoOeMdtzKNRq7qLd+UGAG2qlLCJSAV0FNfzWyrX/+aPZX5oJB9TAel2CPWb cg0qVTm9Y0WI4JeqAFlIjhnhfDwtUVY1TONO4JVvM4PBx9fDWmsLK/E+n3v690/N+H0a mGODrffi0jSZUW0fgR8foI/2c+JicHOyuR1dT1jqmqePSlL1OAUE8zswgko1g73++3EP YlTw== X-Gm-Message-State: AFqh2koz+p3G4SSzyTHRbfbFatH6f0mLPViw61uQwlaf8Hv13w2Z7ew5 GaD+nGhCB4GXrhvBQbWPbpfrsVsHEoUn5Q0XeFu2YhGSEnoe X-Google-Smtp-Source: AMrXdXsC4+9DIJj/3HSQrpzNWCyl6PVy0sO43QtssChaZWPBo2v+DiTAj5KrRFuPHZIJNFMRYRhQQO79CuInadAneRX5Eo4M6ZNg MIME-Version: 1.0 X-Received: by 2002:a92:c984:0:b0:304:a7a2:6878 with SMTP id y4-20020a92c984000000b00304a7a26878mr5636073iln.206.1673025508785; Fri, 06 Jan 2023 09:18:28 -0800 (PST) Date: Fri, 06 Jan 2023 09:18:28 -0800 In-Reply-To: <783988.1673005658@warthog.procyon.org.uk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000026c40c05f19b9b69@google.com> Subject: Re: [syzbot] kernel BUG in rxrpc_put_peer From: syzbot To: davem@davemloft.net, dhowells@redhat.com, edumazet@google.com, kuba@kernel.org, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5540 } 2684 jiffies s: 2885 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: 9e80802b rxrpc: TEST: Remove almost all use of RCU git tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/ console output: https://syzkaller.appspot.com/x/log.txt?x=1587a762480000 kernel config: https://syzkaller.appspot.com/x/.config?x=affadc28955d87c3 dashboard link: https://syzkaller.appspot.com/bug?extid=c22650d2844392afdcfd compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied.