From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (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 1BEA124C692 for ; Fri, 26 Dec 2025 16:43:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766767384; cv=none; b=OSjSV8Vw8wyoh06YYMCyFbeZkUriXf74s/jtxUBpMiqyjsYjSnL1jcW8IBxmMC7UipXkl3DVhcKuHHM9W6JFfGOjKzHe9CtoTNGCcMiccCCRvmxH2+LVIzRvuXEg+8yyVa/sDnZVx9k6eNVvi4rzuktzdabR49mwxKkUut8xa3w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766767384; c=relaxed/simple; bh=sy3Wzix1buePedqsF3Wx+MegpWEP1B45sWRV+7ZEQas=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=aPWfIektus1CeIsHeaUX3mBzMDYrOr2T91CTN4d6JmTrIVuuP02i/jDnjZuczs4YejdovyJNcq4n8sqfo4y3rq3Ss4WPDZCi3n47sm0vLeY+Itb1+4M65gcQZNdO2PA1P2N1a41Yhd85tZs5gkFbl+N5yJJd8l+xJjzVA2UYl68= 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=209.85.161.72 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-oo1-f72.google.com with SMTP id 006d021491bc7-657490e060dso9608955eaf.3 for ; Fri, 26 Dec 2025 08:43:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766767382; x=1767372182; 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=53SAgSKsIJEqDYV+s2VQZXX0ij5NAJJbDSc4ix7LheQ=; b=SKUn//YJAQcJ4c5f3a3t4gxk9fO3fp2YIVnP4RpIHng3ZtYUsHd5jKGF+pYWtJ7xbI 7k13Rg/+n6O4g55Tqc2F0m/YhwC4WkDfvASCwN9lDnpGQDhHOZUUC/b1/EJ9jxCBEC5C xce7vDxO0vyReosWCk5ENKj46cCYelga6CxQAcUQnXFXIbkF+ox0GhzMsI74XTq+YgAg Z91uUBSwujCFOfGQRp62qzXVwpzfDoJUWe73XyQ6jOOGImCLgUhiitil3xZbA9Hxjpxr 1BfHKWvH7L4ZJGVmUDDwEDmwYNi9rxmbrSySPeB6VNzKHXgeGR4zV9qeB1BT+KiIxh/Q lh1A== X-Forwarded-Encrypted: i=1; AJvYcCUj2jvrwYARBvffnM64wFCg5XlXjGC0dviGkxWB1bsJTDpitSGYTrSVho++dA145mimatlXbjL2KGHniSE=@vger.kernel.org X-Gm-Message-State: AOJu0Yx3t+lmkIvyOyt0YQyZkavtZHLTTbzt7G87eGdN4TnncRFWyUfD 5uShTSOMWfsN5OwFK8KFORJbeyfy8zdIvzb/aFtkQotOM3YSeNzsuUOQMl7X+k1cNsL+4KW1KGN ycd/7TReitnnYmlw5GqJ+vuA44HLA+QphG4gVN+G0tgfR02VIfyqMQipLI08= X-Google-Smtp-Source: AGHT+IGQPSV7JiVQmAQqG+OQX04xZJqT0KUjhT9g4KHv4Ml5V72eS98RZ9upgzLfwU+miUGHK3gQTCEITzja2y9xosWteVUkes0P Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:e252:0:b0:65c:fe8b:53c6 with SMTP id 006d021491bc7-65d0ea9932dmr6960121eaf.43.1766767381887; Fri, 26 Dec 2025 08:43:01 -0800 (PST) Date: Fri, 26 Dec 2025 08:43:01 -0800 In-Reply-To: <6730d6bd.050a0220.1fb99c.0139.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <694ebb15.050a0220.35954c.0076.GAE@google.com> Subject: Re: [syzbot] [mm?] INFO: rcu detected stall in sys_pipe2 (2) From: syzbot To: akpm@linux-foundation.org, bigeasy@linutronix.de, bsegall@google.com, dietmar.eggemann@arm.com, edumazet@google.com, juri.lelli@redhat.com, kerneljasonxing@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mgorman@suse.de, mingo@redhat.com, netdev@vger.kernel.org, pabeni@redhat.com, peterz@infradead.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vincent.guittot@linaro.org, vschneid@redhat.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit 66951e4860d3c688bfa550ea4a19635b57e00eca Author: Peter Zijlstra Date: Mon Jan 13 12:50:11 2025 +0000 sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16c6eb92580000 start commit: 9268abe611b0 Merge branch 'net-lan969x-add-rgmii-support' git tree: net-next kernel config: https://syzkaller.appspot.com/x/.config?x=b087c24b921cdc16 dashboard link: https://syzkaller.appspot.com/bug?extid=693a483dd6ac06c62b09 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e7c2f8580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE For information about bisection process see: https://goo.gl/tpsmEJ#bisection