From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 E37272DE200 for ; Sun, 2 Nov 2025 17:38:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762105084; cv=none; b=mgnvHNx7JQ7/3tHtrgIVSz8Er9gnDhKJfs2XXSjzQaLOAWh8oHLxDmrNF10jJmvK5iRDXKEl87X3EmnwKZc4gyXalFReTBCCvfsK8jnV3aWKz4Y700H7Si7MJKaLTbQ3cwlpFVvnVZ6akEYd7UL9utL6XeYfagehdiP6+5KbY80= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762105084; c=relaxed/simple; bh=o0FIdqFREk++l3J1v2J3tW9h4pt95Mr7/7IG2Ece5Aw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=g7G4pRLgJkIY3oKTRvx00gZwRJXlRHI9b23b/PM+OzI56CvfQuVL/e9fRwX0P6iPAbrGcx+wkQyDpjDDt/klhMKSJoaoSNqMGaiDSvj9YHv8jo+aMSKSkFjUyJsJW/1eJ7lTnOA55eWpyAYhWGrS/1GzVi15vveWTK618vBMvsk= 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=209.85.166.198 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-f198.google.com with SMTP id e9e14a558f8ab-43327c30cb1so6854285ab.2 for ; Sun, 02 Nov 2025 09:38:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762105082; x=1762709882; 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=r/wAEv9GIPrwh1+x/pr00cLookNh43MVdSe1H945Cxs=; b=IJNxUyLj0CLL7xukRgd47/WQsWwx3fN9J3iFqnmM4/ZtMZOsu7Q3i0SmuUC+ZaJY+t suLOGguvUB6bIjee5+KgR6vw9ovurLuw22LPxA+CwBukjwB8C9Usf7a9OSxdyw8JZT/6 GGMnyu+pteFPa0JdkeVI0iRlmCGLt5HpZNSI+dvDRApLn0eHHGZwBQ9tYgm9BsVC49cD +76HQ7vcRrFnDmbxDFCYbvfibZg48ei9NXDOgQMKk9U5CJCb3/agb79IRCeL1puxd+0k LzjNWmDjeRx/GyXy3qILYGejPyn6rI8/DJ/IL3ex4Vr1Dr0FiaT4/kIssTpAdwHeJVnn sh4w== X-Forwarded-Encrypted: i=1; AJvYcCWYForBlnbbh5L2S1hai53KAFTHS7ndGbE4s2m8zo6Fn2aHmVv/goFHQQQr6HKM0EgMCUX2v88oNdVh/Fg=@vger.kernel.org X-Gm-Message-State: AOJu0YxmZ8K0pajuH0CdK3EX8AJv7KFlWzrydMXhFLpy3ffjQZETY+l8 xnlddT1D8tngFYgS4TP2dT0+GUasn5PU8zM8qT/InPM/y6hrGOBTDn4cKhpL5YEpj92UYuegAtC UYIBJsk3o0TaPepPk7zlxmcpvfccrrF0EQOcbXP8O0nBfCR2uZWuhtlfo/lM= X-Google-Smtp-Source: AGHT+IG1zgigFckBfcGNeJaiPbJX6Gh9TmGX80g1LSF0Ct9iysgCECfpHX/faSxFEexyhP9Nc8O6trkMpNHWl4XussCMo5cabh/D Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3e8c:b0:430:ab63:69d6 with SMTP id e9e14a558f8ab-4330d1c9e60mr128484625ab.21.1762105082195; Sun, 02 Nov 2025 09:38:02 -0800 (PST) Date: Sun, 02 Nov 2025 09:38:02 -0800 In-Reply-To: <67b454d4.050a0220.173698.0051.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <690796fa.a70a0220.37351b.000b.GAE@google.com> Subject: Re: [syzbot] [kernfs?] [netfs?] INFO: task hung in pipe_write (6) From: syzbot To: asmadeus@codewreck.org, brauner@kernel.org, ceph-devel@vger.kernel.org, dhowells@redhat.com, gregkh@linuxfoundation.org, idryomov@gmail.com, jack@suse.cz, jlayton@kernel.org, kprateek.nayak@amd.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, netfs@lists.linux.dev, oleg@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com, tj@kernel.org, viro@zeniv.linux.org.uk, xiubli@redhat.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit e8fe3f07a357c39d429e02ca34f740692d88967a Author: Oleg Nesterov Date: Tue Aug 19 16:10:13 2025 +0000 9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=154ba342580000 start commit: ad1b832bf1cf Merge tag 'devicetree-fixes-for-6.14-1' of gi.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=e55cabe422b4fcaf dashboard link: https://syzkaller.appspot.com/bug?extid=5984e31a805252b3b40a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=170d57df980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12df35a4580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: 9p/trans_fd: p9_fd_request: kick rx thread if EPOLLIN For information about bisection process see: https://goo.gl/tpsmEJ#bisection