From mboxrd@z Thu Jan 1 00:00:00 1970 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 14A48386 for ; Thu, 2 Nov 2023 00:14:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07CA811D for ; Wed, 1 Nov 2023 17:14:04 -0700 (PDT) Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-3b3447c72c4so644132b6e.1 for ; Wed, 01 Nov 2023 17:14:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698884043; x=1699488843; 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=3o8M4olUhxGuYhfUSjcCSpJU5SY7A9yJ4TSgZavfZUU=; b=Dpkp+ZKk5fVuJ7AGPeEhw3Pq3wNUR9Xr4R8nzhDbp3LSEQ+K06vKRt4ORzdTTUey/j /lDwyUDSV/+tQV9ZDJhhrZ3612zz934RaLjJ/q4ztrnx3Rcsg5jiVI3Y/Vo0n3DfaWkB Nz2f2zLv5gssB7w/UxNHg2pjPI19xlm6W413iUWMIbc3TlgUtooLngH6bB9TpzVCN28i IjOo2psoOHtntTZMws6Tz/Y6GsAbmLXKW3Cazk/JdgWdSMOUJZ/1ivzk8cnOSqpd/U1v /cwAERcMQlHSLt2+3I6+VZHCRtRp1Zm+RG9gKz/gVicrrxQy5tzmmiGBebJV1mz4uvcs 6l7w== X-Gm-Message-State: AOJu0Yxy6thwnM3PzKeGSpxDcQMpjVJ9Y1d08Iy0yP5WkNwvOqmMjpBR 8x93sqEVtJJ5lLzVEN/nQs8UBeUX/FPVnxktPUVLpJOJyYQ/ X-Google-Smtp-Source: AGHT+IGXujbYdoaOwMiOFafFIW9sSBBYTm1Pp7ERXnBxyhbhAcfk6UQLTv/cxWX2Xmxo1xLz6z1fbF2B0KrsJKybb/11d1grAeua Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1304:b0:3ae:15b6:3292 with SMTP id y4-20020a056808130400b003ae15b63292mr6713187oiv.4.1698884043406; Wed, 01 Nov 2023 17:14:03 -0700 (PDT) Date: Wed, 01 Nov 2023 17:14:03 -0700 In-Reply-To: <0000000000003495bf060724994a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ec03e20609204362@google.com> Subject: Re: [syzbot] [net?] [usb?] INFO: rcu detected stall in worker_thread (9) From: syzbot To: admini@syzkaller.appspotmail.com, bpf@vger.kernel.org, davem@davemloft.net, edumazet@google.com, gregkh@linuxfoundation.org, hdanton@sina.com, horms@kernel.org, jiri@nvidia.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, rafael@kernel.org, syzkaller-bugs@googlegroups.com, twuufnxlz@gmail.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit c2368b19807affd7621f7c4638cd2e17fec13021 Author: Jiri Pirko Date: Fri Jul 29 07:10:35 2022 +0000 net: devlink: introduce "unregistering" mark and use it during devlinks iteration bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1758e1e3680000 start commit: 1c8b86a3799f Merge tag 'xsa441-6.6-tag' of git://git.kerne.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14d8e1e3680000 console output: https://syzkaller.appspot.com/x/log.txt?x=10d8e1e3680000 kernel config: https://syzkaller.appspot.com/x/.config?x=11e478e28144788c dashboard link: https://syzkaller.appspot.com/bug?extid=225bfad78b079744fd5e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155614de680000 Reported-by: syzbot+225bfad78b079744fd5e@syzkaller.appspotmail.com Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration") For information about bisection process see: https://goo.gl/tpsmEJ#bisection