From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C49B9B67A; Wed, 17 Sep 2025 01:16:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758071792; cv=none; b=uX+i7lSP0Ftd84FEqq9GIyBGHoa1Hl2IM77ptuWWCLd8Mjx6t5jWfSFG65QPHjVEsrMEkytK3wyUpg1w/70o4J2h4j4ftzTccBEv1p+5YgoW/+I/K1DR1R0yLbsEV1a+ysxnXPGkcCSxKQTDRLxUV21wevzZYdevFzPNGikKHvg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758071792; c=relaxed/simple; bh=wMm3CU8JnvqVu+XBAyCsMnDcqq+lr/aas70UKFC9ags=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=TiwzsTYT/hMWGilShy56NWMlJvYSIzGJMiztlDFDdVeDwmsjSclAlcSeuHBBQIXcckFVD951m7QxFHCa1Hz9j1k/B0zmEvMzq73KJgMRwQMpPBKcLw6caVNglJxsQAhECXRurlDRUPs9JA02tSNl88NFMigsyU5/F0FFqZgpqLM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=jETLQ7fv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="jETLQ7fv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 38DDFC4CEF9; Wed, 17 Sep 2025 01:16:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1758071791; bh=wMm3CU8JnvqVu+XBAyCsMnDcqq+lr/aas70UKFC9ags=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=jETLQ7fv1aaDH+T4cjF2zi7w8e/yIsJ/BiWWWJpQ/wXayVEQCqM/D3zjcfOQUfwhH p49MzSnmyun7d2WxTOPqMulSgILGL/hz7Tun5oCUrTA4WrU0yrgd+msqH4bHsbTu1Y 86M3t/JpsPX2KUKJyQzPhzKNykBLXleqs1XAmRTg= Date: Tue, 16 Sep 2025 18:16:29 -0700 From: Andrew Morton To: Jonathan Corbet Cc: Kalesh Singh , minchan@kernel.org, lorenzo.stoakes@oracle.com, david@redhat.com, Liam.Howlett@oracle.com, rppt@kernel.org, pfalcato@suse.de, kernel-team@android.com, android-mm@google.com, stable@vger.kernel.org, Alexander Viro , Christian Brauner , Jan Kara , Kees Cook , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Valentin Schneider , Jann Horn , Shuah Khan , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Dave Hansen Subject: Re: [PATCH v2 1/7] mm: fix off-by-one error in VMA count limit checks Message-Id: <20250916181629.f4527e6e90d1e620e8d84abc@linux-foundation.org> In-Reply-To: <87v7lifpi9.fsf@trenco.lwn.net> References: <20250915163838.631445-1-kaleshsingh@google.com> <20250915163838.631445-2-kaleshsingh@google.com> <20250915153642.7f46974a536a3af635f49a89@linux-foundation.org> <87v7lifpi9.fsf@trenco.lwn.net> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) 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-Transfer-Encoding: 7bit On Tue, 16 Sep 2025 08:20:14 -0600 Jonathan Corbet wrote: > Andrew Morton writes: > > > On Mon, 15 Sep 2025 09:36:32 -0700 Kalesh Singh wrote: > > > >> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") > > > > lol. > > > > x1:/usr/src/25> grep "Fixes.*1da177e4c3f4" ../gitlog|wc -l > > 661 > > > > we really blew it that time! > > A few years back I made a list of the most-fixed commits in the kernel > history; unsurprisingly that one (I call it the "original sin") came out > on top: > > https://lwn.net/Articles/914632/ > > Perhaps the time has come to update that analysis. > Hah, thanks, that's a fun article. It's a shame it's so recent. I do recall back in maybe 2002 a fresh young developer popped up with a massive rework of the IDE drivers. I promptly took this into my tree because I was having a hate on the IDE drivers at the time. omfg, what a disaster - this was the buggiest bunch of junk conceivable and it went away after a few weeks. I'm glad to say that the developer (email handle at the time was "haveblue") has become better since then.