From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C691117A2EA for ; Sat, 31 May 2025 16:20:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748708404; cv=none; b=HfH4pGQG2kA4mD7tmTkNE7eQXCVcmmjU/0HXOxhS8L3mHI79de4kSmfQ+52uZEMsxq9D00uZUlRLG3blMnH4isILIPczTGzWGAp32Vrj5r0gXE8lL8HSZ0g1REHKhEa+jtlaQ/5mTTdLxf8IH/g/jiBxqFCBXnoNW7WYLqbXeAo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748708404; c=relaxed/simple; bh=sgPA9Q230YlwYNsgLsUAGT+EIJ3MJXCV8CkuV+njEC8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=h++K/4vpIsvYxikqgHRuSKSL0BaOQGLUGXCSsWkLQB3Eiq/92MlvaQXyNMwlvfLdB5/qZiUtnC1q916U6noZAfNnIkjUDcKI2mjjyLRZcVcwOY+JsN7HXhc8/HCfnTKA3WbX/Q8O+ncaNMufKhF6h2MV+yZaWBqhIorK4Thk9KQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3dc854af016so37200725ab.3 for ; Sat, 31 May 2025 09:20:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748708402; x=1749313202; 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=jOT3+3dtKmIMbjiKp4WKPYIYOuy19lzYdhT8ETpxuvo=; b=iBR4m2bFL+7oDvCOreJlR7+Red0dvHtyRidJiC+N71c+xZpQtObtfoFXkJqk+UD5T/ oaIBKB8PRiKNjjsWZIcYXYK2+9Nc8+XFgUJHRdb96mYcUv31lq1WbGAax1OGIvy6KOeU XEK4MJ/buDX2ZII+9LkUFWnCak4/aJ46jUyp6G1YO0IqRb7mKtNYKvQlHBdas584TKhU 60fqEr8S1IWN5PfDwk5NRiQPyVnkz54rZk1YeQRmSxVE5tDg5BSLdd9+nziQpGOIqOIi P7iMrummOFkbzjaXJWuaHzzWKZ2WhREMOInu67BP+RoCSuGxhKGY83EaGA7P8FuVNuh2 xfAQ== X-Forwarded-Encrypted: i=1; AJvYcCU+uQAwWPidvU20bSS3FGNWMnwOrENUr4zY1HHHsNMaJXxNMbRDoZM8BR+tX/yPv2xFGZa3/IG644kl@vger.kernel.org X-Gm-Message-State: AOJu0Yzu5vZkPqvpigpGmwJ5qchDlUmFWZ+j2lP2XiKpHz9LWhcWbT0d C55qlfTJlFly01RbvX+Nc3NNiLtXErna1hU4dByb7+fFzQA25N0gQb7moVvizQpGwHyNEbBxgW9 9B9bVLnHyxXFlMDlnVsmcxl9blnVdf/XjVWQN/tUPg+s9ivXL2zi/qfclxPw= X-Google-Smtp-Source: AGHT+IGdap3ueor/+dC4QVfuI3dEjhxnuRezgHUx4IFWYUjshQSu+2Ssy2m7Z8B44GaIOMUzHwVmDX58Z5+KnBdSnlu+zMS+qDxq Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1568:b0:3dd:8a06:4db3 with SMTP id e9e14a558f8ab-3dda339232emr19169295ab.19.1748708401944; Sat, 31 May 2025 09:20:01 -0700 (PDT) Date: Sat, 31 May 2025 09:20:01 -0700 In-Reply-To: <000000000000ec1f6b061ba43f7d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <683b2c31.a00a0220.d8eae.001b.GAE@google.com> Subject: Re: [syzbot] [smc?] possible deadlock in smc_switch_to_fallback (2) From: syzbot To: agordeev@linux.ibm.com, alibuda@linux.alibaba.com, davem@davemloft.net, edumazet@google.com, guwen@linux.alibaba.com, horms@kernel.org, jaka@linux.ibm.com, kuba@kernel.org, kuniyu@amazon.com, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, linux-s390@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tonylu@linux.alibaba.com, wenjia@linux.ibm.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit 752e2217d789be2c6a6ac66554b981cd71cd9f31 Author: Kuniyuki Iwashima Date: Mon Apr 7 17:03:17 2025 +0000 smc: Fix lockdep false-positive for IPPROTO_SMC. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13833ed4580000 start commit: 47e55e4b410f openvswitch: fix lockup on tx to unregisterin.. git tree: net kernel config: https://syzkaller.appspot.com/x/.config?x=4ef22c4fce5135b4 dashboard link: https://syzkaller.appspot.com/bug?extid=bef85a6996d1737c1a2f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14832cb0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e17218580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: smc: Fix lockdep false-positive for IPPROTO_SMC. For information about bisection process see: https://goo.gl/tpsmEJ#bisection