Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AC4976AAC for ; Tue, 29 Aug 2023 22:57:27 +0000 (UTC) Received: from mail-pj1-f71.google.com (mail-pj1-f71.google.com [209.85.216.71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68BDF1BE for ; Tue, 29 Aug 2023 15:57:26 -0700 (PDT) Received: by mail-pj1-f71.google.com with SMTP id 98e67ed59e1d1-2717f4ba116so4032402a91.0 for ; Tue, 29 Aug 2023 15:57:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693349846; x=1693954646; 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=cAx6PSOlRe1SoOmdVLTfSTqRq8XYYm/GJtA05ydLXZQ=; b=F0p/cBFPoS8suy81xIc/A/C3BemzjfwUwB3TbrSo1jBGHQgFb8cBNVjliU2gyChd1g EJr2O94GuuMDKn6EAoPRu5zSsp6U9oWYwvMGGBKX53DnhUAuZn5S0OWh8XPAVEXH3wM0 nt9M2Ll2KDGVEYIM/nPGu5gA0yPGyehetasSSQi0FJAjYjQuG55JTNVp+758iSotFi6A 63OAZ48geaEtci7YBXJxU0chUdyGMHRLYzM2JOsY5xbq1RqB7nzgvXcOdvuBrKnKjmv9 KTBxWpUU2AGuu9/2BF5wsqj7IpG0nPAhIY13df6VgM6PW/AZ+/iYX72VTFpF4/1jKi14 cMpg== X-Gm-Message-State: AOJu0YwM+ot6ClZ3b0FhLOywScjnWli6z8RpAhmKPQlaQ2WhMGaEJD71 Oy73eXAkaDpFAT9Yep9gqkyu/odn1+YQrUBuHEjcMiA/Nbe6 X-Google-Smtp-Source: AGHT+IEzdCowiZmXUDDhkbYINfZE/r+09JEfRrBJG3TV1PZiXW7dTgVeIl0Jj6WsJu8Hs/EFNhtwmwBtC0shQ2WpNjmc8DS1vxGs Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a17:90a:c908:b0:268:5c5d:25cf with SMTP id v8-20020a17090ac90800b002685c5d25cfmr153388pjt.4.1693349845961; Tue, 29 Aug 2023 15:57:25 -0700 (PDT) Date: Tue, 29 Aug 2023 15:57:25 -0700 In-Reply-To: <00000000000017ad3f06040bf394@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000c97a4060417bcaf@google.com> Subject: Re: [syzbot] [net] INFO: rcu detected stall in sys_close (5) From: syzbot To: brauner@kernel.org, davem@davemloft.net, edumazet@google.com, eric.dumazet@gmail.com, gautamramk@gmail.com, hdanton@sina.com, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, lesliemonis@gmail.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mohitbhasi1998@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, sdp.sachin@gmail.com, syzkaller-bugs@googlegroups.com, tahiliani@nitk.edu.in, viro@zeniv.linux.org.uk, vsaicharan1998@gmail.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net syzbot has bisected this issue to: commit ec97ecf1ebe485a17cd8395a5f35e6b80b57665a Author: Mohit P. Tahiliani Date: Wed Jan 22 18:22:33 2020 +0000 net: sched: add Flow Queue PIE packet scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=101bb718680000 start commit: 727dbda16b83 Merge tag 'hardening-v6.6-rc1' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=121bb718680000 console output: https://syzkaller.appspot.com/x/log.txt?x=141bb718680000 kernel config: https://syzkaller.appspot.com/x/.config?x=45047a5b8c295201 dashboard link: https://syzkaller.appspot.com/bug?extid=e46fbd5289363464bc13 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14780797a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17c1fc9fa80000 Reported-by: syzbot+e46fbd5289363464bc13@syzkaller.appspotmail.com Fixes: ec97ecf1ebe4 ("net: sched: add Flow Queue PIE packet scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection