From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f68.google.com (mail-wm1-f68.google.com [209.85.128.68]) (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 7C3272C030E for ; Sat, 28 Feb 2026 08:29:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.68 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772267395; cv=none; b=UQe8IyKBF0d8zz0U23oHG0ab+oMvv2REgjdBS9VlsJ3OZr2mcox8NLh7R5qp4yKzbJah14pfDM5dlAufvxaEMmMgbKZAVXNT1JT5JaeRZfqa9Fe2THGlQTqMyyi8ZfgrezDVTe4BzRA72lPhu1ZlAL6hvDO0W0b8r8NtjQlZ6ko= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772267395; c=relaxed/simple; bh=GSPUoSIz+9pB97rCfmIDKkMYJEqxB9ztnB1NXD4TE4Y=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=k1uWnRiKitvVFJjyVLUe8qGyB7NKs0oRmq5YOmCvhGGtjrQRAXD6h1+HNLD4ivORBXVJTs7CaVzPZVVmp73Awcx5DOdq6DFATdesQw/XcJ0SLYKa1R6CdVcHRj2iwd/ZbFpHai3ms2qetjdlWkPTT5W35OGn/ZO6vEND2N2n0cA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ek7RWcc2; arc=none smtp.client-ip=209.85.128.68 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ek7RWcc2" Received: by mail-wm1-f68.google.com with SMTP id 5b1f17b1804b1-4836f4cbe0bso23862925e9.3 for ; Sat, 28 Feb 2026 00:29:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772267392; x=1772872192; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9Q8ZvKHkpjnAA8I/B72ngNzENTZUf11sap4CueXWS5I=; b=ek7RWcc21J0sLhfWlJ5S+z44a9WFVmZvavTh/so71Tv3oMJCb3XaVxVYV8E5mo6nQk l83NNlmA8NwXmNWw/btfY06BLZrFHbCq5gUu5fGJ+kwRyG9DUN/jExEIPhPE8McL2Ms5 hDj3Gnb7DoPetI34CpcWRcyku7DUF5Gfj2T+isPt7urtOZGrFv9Rd9dzuzWEtd06Fy92 DFIXwx9B/ACPquTZ2pF0jGM+o0ZEBzmLVvAUGnA/wI0znh5vPQN2Q+mWrBEJKGXeMc7O m9TMoUz5d5Tw8/jcP1LkKXJcbm6kWInV/vUoElI4tahIttUkNglx9jb99JcUv03qgLlJ ou2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772267392; x=1772872192; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=9Q8ZvKHkpjnAA8I/B72ngNzENTZUf11sap4CueXWS5I=; b=iVt22gz9cfiIxEAYa1l4SB1/u7XIHh/zyb02qxnuYY0O6eC4XaJ6zUh12FmfeDeKuT 31dYZaPkM842092Vy6JCDkez4ZjlH4QI453XdvrXy1sGQIBojJCHIVskNNPf8bDpMNEM Ki8mX2PHjxOFoiZdPdYKowBBXPp7AFDi1ppLckn2ikwqRbD9VwUdok7T1mdJU6HrrPKN nsVGvd1eqBE/VD1ds0hP2QtjpBDXbTkoA80jftF9c27shDDJsyUNHf4oUEU6gkg1aW89 hllokW5BEH73G7411HwOZyor4iITxzr/Xng7cSTALnjs8xbN9q6HwyX0J7kSpNnwYC7h xi8Q== X-Forwarded-Encrypted: i=1; AJvYcCX5yXuSYTm3yQTHjAaMYOd8e75MivG1bscVOI8KmQtebKXwuJX8kmxyfAl8DP26i7zwDVm0vRxuWZcRwfXh@vger.kernel.org X-Gm-Message-State: AOJu0YwWIg2gKSNf6lguwjPctE/SxWsyn+isQIEwXfRA+kiMeZEQrukb PAgkUYwc37yetbUcuHGJ37gzIy+bb2wpT9NPVtVVSitteFQvgJlyzFnv X-Gm-Gg: ATEYQzy8kuZgs2N7U8YLXTBRm+axtKG/I51g3nQfDEH6GVsJVf6RwmfC6Ng0ciNweaQ F21AEPSjVXZQy8nlsiKA5UnK/E49T2N+1quZBkGqbOs04nJzQ/0bLyr7tTAhNk2fYYiTPdX2Odu ft9rdCITaQ3Hixn3HI438sQk/x3y+FLdYwWkArO4dmNSGMGjYdKX5c4cvvs/XeGji8Q2035+shz UAFtnhqJNQyhXUheWQ59lLsTOO7vY/3W/QyLg+tcDnot521ATbJl16INyyVkCnfos1ryYCpivOS gVKhuj+bXRtrn87+feHNTaEUPRLmIzB0u1LJfjc4AJaLwggxd/JxOhgGoADvHhOQofjJTbIm8N8 NL3vOxmrz3lfed9Zt9eTveLp+OfdSCCy3PAGyuc/vFNtELDAL+zjMsUfhEzyxVlJJ4RCg50tAEh HZGznnIxdtj5nFBm9POeNRQwEO3Lr1QFFh5CRXZouGVi+cygx4Pg== X-Received: by 2002:a05:600c:3e0b:b0:477:9a28:b0a4 with SMTP id 5b1f17b1804b1-483c9b6d539mr97952825e9.0.1772267391632; Sat, 28 Feb 2026 00:29:51 -0800 (PST) Received: from lima-ubuntu.hz.ali.com ([47.246.98.215]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483bd7031f3sm239122975e9.6.2026.02.28.00.29.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Feb 2026 00:29:51 -0800 (PST) From: Qing Wang To: syzbot+512459401510e2a9a39f@syzkaller.appspotmail.com Cc: brauner@kernel.org, jack@suse.cz, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Subject: Re: [syzbot] [ext4?] INFO: task hung in filename_rmdir Date: Sat, 28 Feb 2026 16:29:42 +0800 Message-Id: <20260228082942.1853224-1-wangqing7171@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <69a1a0eb.050a0220.3a55be.0021.GAE@google.com> References: <69a1a0eb.050a0220.3a55be.0021.GAE@google.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test diff --git a/fs/namei.c b/fs/namei.c index 58f715f7657e..34a5d49b038b 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -5383,7 +5383,7 @@ int filename_rmdir(int dfd, struct filename *name) if (error) goto exit2; - dentry = start_dirop(path.dentry, &last, lookup_flags); + dentry = __start_dirop(path.dentry, &last, lookup_flags, TASK_KILLABLE); error = PTR_ERR(dentry); if (IS_ERR(dentry)) goto exit3;