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 CF82CE743D9 for ; Fri, 29 Sep 2023 02:50:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230523AbjI2CqU (ORCPT ); Thu, 28 Sep 2023 22:46:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229745AbjI2CqT (ORCPT ); Thu, 28 Sep 2023 22:46:19 -0400 Received: from mail-oo1-f71.google.com (mail-oo1-f71.google.com [209.85.161.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0EEA6199 for ; Thu, 28 Sep 2023 19:46:16 -0700 (PDT) Received: by mail-oo1-f71.google.com with SMTP id 006d021491bc7-573b8245f9bso25024950eaf.0 for ; Thu, 28 Sep 2023 19:46:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695955575; x=1696560375; 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=yf0tg4B6gTsy7B5C3/7G/qTxuD3nPwZk033E7oRAoMQ=; b=TykQtyuMdRoxD9pwDLTxM9Ax9QMDMTqMxe1eQsrCsK43GzIy6211jdhW+jUjiV0Y3U n1Xq6uXQH5mSGa9rcnKr9CHeL5X3E34ODloVc9ogwpEkH9iefrqvyc4m8Hiu97FS6Mu8 SmUfXlZ0kGN9We3ZM1xNcm4kvbF1jD5IEwepNal3bFo2IDNadpPM4nquEZTsLXm0gief U/u9UbJlTcE2JrrLBUF3UZ2pzusj6LxjO6ORvSLrH/Nu8zMq1Q1AhQGNWwYOqt2AM1h8 xTuf/HHcf2HL5GK66Ljky3N3fs4Q3aD/0/TXZ5J7RE8u0CTuHki+5DG8cBwM31JM6QO/ xuqQ== X-Gm-Message-State: AOJu0YyrY01K+p2Xg2DYQ0zS/P/Pp21VUxUYInVr5AbIueUkOWmcYPBs a5mDa8V/6GrRtG9Sd5070EpTgNg1WJBjKEN06fFKXjT3COw7 X-Google-Smtp-Source: AGHT+IEQeTrF4AbuXTCWyeZYTYVyh4xbRCNYCDVmJLyslhEx7cvAez/6SbhpOgULPamF0pFnaZXr577T62hWbpUevOw2l3uVYJdT MIME-Version: 1.0 X-Received: by 2002:a4a:2cd0:0:b0:57b:3840:4c85 with SMTP id o199-20020a4a2cd0000000b0057b38404c85mr832728ooo.1.1695955575400; Thu, 28 Sep 2023 19:46:15 -0700 (PDT) Date: Thu, 28 Sep 2023 19:46:15 -0700 In-Reply-To: <0000000000006452210601115981@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a0708b0606766d7b@google.com> Subject: Re: [syzbot] [kernel?] INFO: rcu detected stall in drain_vmap_area_work From: syzbot To: bp@alien8.de, brauner@kernel.org, dave.hansen@linux.intel.com, edumazet@google.com, hdanton@sina.com, hpa@zytor.com, jhs@mojatatu.com, linux-kernel@vger.kernel.org, michal.kubiak@intel.com, mingo@redhat.com, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this issue was fixed by commit: commit 8c21ab1bae945686c602c5bfa4e3f3352c2452c5 Author: Eric Dumazet Date: Tue Aug 29 12:35:41 2023 +0000 net/sched: fq_pie: avoid stalls in fq_pie_timer() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=111ab276680000 start commit: fdf0eaf11452 Linux 6.5-rc2 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=77b9a3cf8f44c6da dashboard link: https://syzkaller.appspot.com/bug?extid=fc9127d4bfa8ef129f7d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=103a7aaaa80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=177aa662a80000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: net/sched: fq_pie: avoid stalls in fq_pie_timer() For information about bisection process see: https://goo.gl/tpsmEJ#bisection