From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) (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 33F2348BD50; Wed, 3 Jun 2026 19:31:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780515082; cv=none; b=uwnokaIVT6WbfhRbpmkijTDGcpZKQmwQprkTfpR4OABNgxBn9FS8zjC+8lLEKboJcdgoLby1ZmWfayr8r4DskXo6R3QQPpqK3zaSTcOnC3KyufM9SIFLps6mCsjpx2kA8sn7+rjq83c1OVyhsjOr0YUwgeCou+JUHfdGkT/xx4U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780515082; c=relaxed/simple; bh=ghz5Ao/R3783Y4B+gTuiTMUjoiR3S9f3sQ4hfNeCR0M=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=jURxIT6G//E4j59mqY6qsIL8wnQYbkVvNrOSPYklm4sWSdZDnnbxdst/KPUYFElhEQKpr5UTcJ3XIZVScNCmkBjqndVRsuSiirRRzaaQSoZ20Jd1LVCU/T2ns3wG6+ZttFSzLAX6aYpOoJv7z38D37cs33NUwfd2SoDS+aNsJd8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf06.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 16F391C1CDE; Wed, 3 Jun 2026 19:31:19 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf06.hostedemail.com (Postfix) with ESMTPA id 27B732000E; Wed, 3 Jun 2026 19:31:16 +0000 (UTC) Date: Wed, 3 Jun 2026 15:31:15 -0400 From: Steven Rostedt To: "David Hildenbrand (Arm)" Cc: Borislav Petkov , "Zhuo, Qiuxu" , "mchehab+huawei@kernel.org" , "Luck, Tony" , "akpm@linux-foundation.org" , "linmiaohe@huawei.com" , "xieyuanbin1@huawei.com" , "Lai, Yi1" , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" , "linux-mm@kvack.org" , "linux-trace-kernel@vger.kernel.org" , Linus Torvalds Subject: Re: mm/memory-failure tracepoint change breaks userspace rasdaemon Message-ID: <20260603153115.775a2e81@fedora> In-Reply-To: References: <20260603121707.7eccb9fb@gandalf.local.home> <20260603161947.GBaiBUI7C8WWPwD84S@fat_crate.local> <0c16bf3d-7c6d-4e28-b200-03b7d0ef714a@kernel.org> <20260603130006.7d2c4a62@gandalf.local.home> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: o1f9my7jggg5tdygakhbm7htic98hmto X-Rspamd-Server: rspamout06 X-Rspamd-Queue-Id: 27B732000E X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/v0JHug/fbEKbv0orzjsUgwqRSLAY4vfI= X-HE-Tag: 1780515076-808314 X-HE-Meta: U2FsdGVkX18BS9WmFzYjXx1SEgGMWf6ubjVVWbxkrHXl/C+lfZyc1FY5NNDejF5/51RLVOu+dyiJyjXjGytmVlyD1dWzEqVx8QPcGtHRFRiiRsyVy2Wtj76dNjs0RLmjT3iRXEsS1MmRyxB7krYMay3dclmABmdtxLRZV7tgf3WNWNPrdJVjjREN04OTrq6wzDiPoWYZWgo90MB8u/h03etMedxCUVxuZECAyJ62EsifSXsgfsVLy6kYpM97IojMM0WdtYKJpWL45s6pRsNDuG9f1KzWfE5OTet3P61DSAP2jKGHj0jLFR9EXA2i9GjQSZmvuxbGiLUwCvieWoWn7+Pc2srt4cAY On Wed, 3 Jun 2026 21:13:30 +0200 "David Hildenbrand (Arm)" wrote: > Thanks, that makes sense! > > So, would it be fair to say that, in general, what's exposed through > > /sys/kernel/tracing/events/ > > is stable ABI? It's only stable if something depends on it. It changes all the time. It's only when someone complains about it that it becomes "stable"! -- Steve