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 50AC23FCB for ; Thu, 23 Sep 2021 15:06:13 +0000 (UTC) Received: by mail-il1-f200.google.com with SMTP id f4-20020a056e0204c400b0022dbd3f8b18so5809180ils.2 for ; Thu, 23 Sep 2021 08:06:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=vmo32TLCnAUpPH6dpBRnBTO/9NixVmnEfLnfcZbaeqc=; b=rCt1CDfeRFD1K1Tk8WWuTJqeKX7GZhUU0gm5Kk0V6toWRWKUy+Ue1lSQM+lQLCFqPb P/16rN76x/D9ytWtqP2mVgLVfN/hAxTD6nbSbz7v1A0Q/eBeTmqdbgNkKGlqMNqahDa0 Vq5M1ntj/YWMC19egSTv0DlNVNkeZffpu19k9BrMxNActD47en94hee/0htG/elSxHlx nVPXsfuvTj8nCASurT4p2JR2thPOL1Mfy+YLLJMTOYrGUmeixmcTMIGzmo7hurMUSO+u LNL1xzEfXqkIXcHnn9udqz5L6qeLtbstzFigplc1AX2uB9702HATe1lHP9AHtaPBmLWS mR4Q== X-Gm-Message-State: AOAM533SZN7CotHjBbiJT1PYpRdC4bAYyDOcMqyoM2RFXXPmySkcLkia OIeJTlSuZ8IbChf9wZZyFZz3cKD34fgaXBFY6uqzhJXdm4PB X-Google-Smtp-Source: ABdhPJxgj2qDbE7gIF58B/ial3aTsBeHdOJa5/IymT6qIGPiE/1arxolEkAqJYVV7gJjvNFoCsW2AScA6+s2+FWoItKxIBnfWHpz Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20e8:: with SMTP id q8mr3810442ilv.202.1632409572417; Thu, 23 Sep 2021 08:06:12 -0700 (PDT) Date: Thu, 23 Sep 2021 08:06:12 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b1275505ccaaf886@google.com> Subject: Re: [syzbot] INFO: rcu detected stall in sys_recvmmsg From: syzbot To: mptcp@lists.linux.dev, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+3360da629681aa0d22fe@syzkaller.appspotmail.com Tested on: commit: 58e2cf5d init: Revert accidental changes to print irqs.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=e917f3dfc452c977 dashboard link: https://syzkaller.appspot.com/bug?extid=3360da629681aa0d22fe compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 patch: https://syzkaller.appspot.com/x/patch.diff?x=1379f923300000 Note: testing is done by a robot and is best-effort only.