From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CAC21A073C; Tue, 27 Aug 2024 10:13:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724753627; cv=none; b=jTJH+08XUa2ubxlUdzVa3gQryRzV1p3nlw5DnJe3QxC1kYwGdy6TEu5KsGmKj/PfLr29tzOPnRWRxqu2+xiCplkAYR6BMnZ0UqiuaZU4XQY02+mlQYj/mEiJ++T9/a2XSN73Ui/ZT3rHCnelLomoZlkp34jSMUeX45mowskWirg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724753627; c=relaxed/simple; bh=OtKLKLovPXlPeSXxDYFfqWc1OdexnokcwRWezfoZEfU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=irgvcPYrhBkkw/kAcd+3aKT4ERvOI5CGEXaSkWKKaUxCYxcsNVtg7QrLk3NYSWMiqJKk9JG+07xR6PRhS0jB7dkwTCeDADUpLtgGFa65dunm5NrINHY0Ks6kKDppt9Sr4vIXKRLzBwmzneSytDWOy5ouwtz5g3ezVtiVtE1ITno= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=IFq11HQo; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="IFq11HQo" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=oTpgnzArF2ljhVVf8MMWOhH6rtMPFPfD+TCF0oj6yfk=; b=IFq11HQohnkjBHntHpFG0iYr0j asZC3RUnexBi3yUL4MBE7il6zzcqabH2zAcUmZjVMq0tF32n57UMi1YypLKQqqF4K1DGr+LYfn6QI BCWOOM8TesyNTvSDyLFFyLYk+7VmCjvG5VSsi8uVs/8XGEtNKygFJec0304UVDoZ8wDwN6te3GiLd nDeGMNtLUVK0Njfs/9HV3iLDYYPkp4ilzUq+K5uhWWF5AQWvYF7Muhoq87ohCkwL9A/Jb5jKWdr93 d/RBMxozwXCt5mj1owY8nzZGmQ/mALd8kTv8R5ZRSSsHOBwzMEMyLpF1OT3MwnOH4PHNwk8/kY6Am BSl3uONw==; Received: from hch by bombadil.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sitCo-0000000AlHG-00a5; Tue, 27 Aug 2024 10:13:42 +0000 Date: Tue, 27 Aug 2024 03:13:41 -0700 From: Christoph Hellwig To: Julian Sun Cc: syzbot , brauner@kernel.org, chandan.babu@oracle.com, djwong@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [iomap?] [xfs?] WARNING in iomap_write_begin Message-ID: References: <0000000000008964f1061f8c32b6@google.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Tue, Aug 27, 2024 at 04:54:41PM +0800, Julian Sun wrote: > On Tue, 2024-08-13 at 01:14 -0700, syzbot wrote: > Hi, > > Is this still a valid problem, or is it a known issue? If it is still > valid, I'd like to dig it into, but do you have any ideas or > suggestions before I proceed? Thanks. I tried to reproduce it locally but haven't hit it. Once reproduced the next debug check would be which of the need zeroing conditions triggers.