From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82DA1C001DC for ; Fri, 21 Jul 2023 08:14:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231418AbjGUIOT (ORCPT ); Fri, 21 Jul 2023 04:14:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57382 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231435AbjGUIOQ (ORCPT ); Fri, 21 Jul 2023 04:14:16 -0400 Received: from wout3-smtp.messagingengine.com (wout3-smtp.messagingengine.com [64.147.123.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D07D52710; Fri, 21 Jul 2023 01:14:10 -0700 (PDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailout.west.internal (Postfix) with ESMTP id AA0ED3200FA5; Fri, 21 Jul 2023 04:14:04 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Fri, 21 Jul 2023 04:14:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; t=1689927244; x=1690013644; bh=FUNFJj6urWuhz j/ULPd7dgB790ZiEm9pAM63aZfvl0o=; b=K+rMc5OSCr1Fh3xdtUlGdyEGp1ONI 51AJM7rHQtcPDLtX+kJ6dtJJb+OZ5//ie4+jgpfhPd2tNJruDPl3+eEPHvmFD1ye 4Jb/J120LU917i5czkrEOBtvJtmoP6YWY5AggOG930AFqj2FrrXcZ/QWbx/zbGhb PZY7UmtLp9n1vsTgl/DpXwt4ICVD+veAS/haXKLYa0q5n4/a1ZfwwnxQ8xOgKm30 Z6urvnxBg9uTdpQ0kpWJHWUotlTyCmMxFR5rkEXm7b8y+XCwHVtHzIZvPHLLTYor S+KRdPKxBmDyGziWoDh0avzv1jkwzeT49W/KC6xVFmpQE7uOHeLVNM+MA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedviedrhedugdduvdeiucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepfffhvfevufgjkfhfgggtsehttdertddttddvnecuhfhrohhmpefhihhnnhcu vfhhrghinhcuoehfthhhrghinheslhhinhhugidqmheikehkrdhorhhgqeenucggtffrrg htthgvrhhnpeelueehleehkefgueevtdevteejkefhffekfeffffdtgfejveekgeefvdeu heeuleenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpe hfthhhrghinheslhhinhhugidqmheikehkrdhorhhg X-ME-Proxy: Feedback-ID: i58a146ae:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 21 Jul 2023 04:14:01 -0400 (EDT) Date: Fri, 21 Jul 2023 18:14:04 +1000 (AEST) From: Finn Thain To: Matthew Wilcox cc: Dave Chinner , Jeff Layton , John Paul Adrian Glaubitz , Dmitry Vyukov , Viacheslav Dubeyko , Arnd Bergmann , Linus Torvalds , syzbot , Andrew Morton , christian.brauner@ubuntu.com, Damien Le Moal , Linux FS Devel , LKML , syzkaller-bugs@googlegroups.com, ZhangPeng , linux-m68k@lists.linux-m68k.org, debian-ports Subject: Re: [syzbot] [hfs?] WARNING in hfs_write_inode In-Reply-To: Message-ID: <3eca2dab-df70-9d91-52a1-af779e3c2e04@linux-m68k.org> References: <46F233BB-E587-4F2B-AA62-898EB46C9DCE@dubeyko.com> <50D6A66B-D994-48F4-9EBA-360E57A37BBE@dubeyko.com> <2d0bd58fb757e7771d13f82050a546ec5f7be8de.camel@physik.fu-berlin.de> <868611d7f222a19127783cc8d5f2af2e42ee24e4.camel@kernel.org> <60b57ae9-ff49-de1d-d40d-172c9e6d43d5@linux-m68k.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Fri, 21 Jul 2023, Matthew Wilcox wrote: > > You've misunderstood. Google have decided to subject the entire kernel > (including obsolete unmaintained filesystems) to stress tests that it's > never had before. IOW these bugs have been there since the code was > merged. There's nothing to back out. There's no API change to blame. > It's always been buggy and it's never mattered before. > I'm not blaming the unstable API for the bugs, I'm blaming it for the workload. A stable API (like a userspace API) decreases the likelihood that overloaded maintainers have to orphan a filesystem implementation.