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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CC75CCD6E57 for ; Wed, 3 Jun 2026 19:31:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 3578A6B00A8; Wed, 3 Jun 2026 15:31:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 308476B00B0; Wed, 3 Jun 2026 15:31:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1F7316B00B1; Wed, 3 Jun 2026 15:31:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 092076B00A8 for ; Wed, 3 Jun 2026 15:31:23 -0400 (EDT) Received: from smtpin03.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay05.hostedemail.com (Postfix) with ESMTP id A3A01405D8 for ; 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b=tVvYCbiGfnzEUZfofBuBnCZpk+nCXIXZq03Xr9pwtn/u0dKa+SnHkpSbGnNmQzNaQ4xej5 6S0ArOMiihg6jP4GlDj+fMW4ILmczW/NmQVVobkjxjii1yLCR9I8CRecSi9fKUJ/XlC5nb +kXIPNogiyePvxeesGfimT8c92jqBjg= 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) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/v0JHug/fbEKbv0orzjsUgwqRSLAY4vfI= X-HE-Meta: U2FsdGVkX18BS9WmFzYjXx1SEgGMWf6ubjVVWbxkrHXl/C+lfZyc1FY5NNDejF5/51RLVOu+dyiJyjXjGytmVlyD1dWzEqVx8QPcGtHRFRiiRsyVy2Wtj76dNjs0RLmjT3iRXEsS1MmRyxB7krYMay3dclmABmdtxLRZV7tgf3WNWNPrdJVjjREN04OTrq6wzDiPoWYZWgo90MB8u/h03etMedxCUVxuZECAyJ62EsifSXsgfsVLy6kYpM97IojMM0WdtYKJpWL45s6pRsNDuG9f1KzWfE5OTet3P61DSAP2jKGHj0jLFR9EXA2i9GjQSZmvuxbGiLUwCvieWoWn7+Pc2srt4cAY X-HE-Tag-Orig: 1780515076-808314 X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: D32151C0002 X-Rspam-User: X-Stat-Signature: o1f9my7jggg5tdygakhbm7htic98hmto X-HE-Tag: 1780515080-958830 X-HE-Meta: U2FsdGVkX1/VfQmwtCd1gw3j/2ZkzOAKtFmik1cmJexHHA9hh+37sSm/6A+/sqvwHXqOCBrc16CKYDsAE0XC12Iu4h7DcuRVCueAXw1DRG7KGUj9Yh2IrQGiD6mwPUBfLUFNsuTo6mEokqYsIqtyd5PRfnmolphMiZFz9m5Q4J1NIDdKZv8BtqLLqiDx53uRbBn6eDbDD2k2u3YnNNil3BTbt6MHsb7BT/3oR4lsy2hLgva6AeE1IjjOrA2x31pRn3FJ5yL7tSWGxuM2UzkR7yh+cVFpY2MVwr3rZfMu8F3BECKzc4NnzAmr/2Wc8hSF/59MrlekRZQlvXaE6M9O58SztV14ndb57JGLYUIPiA7JM+vqQ49zWIjH8w2TFy4cAjwx3iJkkApZ6sJg5y9mWHmJ5I1pHZOVIk47Gq9pz80N695xZ2rtJlPauyUPcO2iTLqx304kZ9T8hUpdIfSCxHaRmTHh95hnugcVeiNQ4J/eoE8oOhS8xr9K17ZUx0qTNA6fcX7kJL8j4cJSJI2hufvfO07/Ky0KyZX5L4LVCKAELOoNUIgOqwqJtnWduFYwCxDONHvolt+YmV4q+rm+SVkavwUpPhoskIoMdDdKaa+5n9SrTKRw7ozbvjfpU3UDC8t0nV2mgPpFTFEnjrYM7YQJvwhFh3x1ZTEW9uhxdc4+vm4el3IPPjjT4Rh4x44WOGdiDUYn88FH19Dh02z0e0HfZAPuo7c7nqYWN75Nmb87X7V2oZwVsWlLaMH0V5ozQVVyDLCaK5eVMrTsTVYb4tPjiQiO3MtZunYxfB4FURfbAt8TJTDeyubAwFJ2vkGMGvb54vZNKN6iEuytEmvRDercl1Q/s8s8eq5VsFmwE9twF89qZ2fjkQ8dpn/6ihRzwhQZ7iM5upYtO4rtWLY9d5IFkgVTHgMZJ+KuVuscd3qlxN7f5thR3Evz1iVqIGKdt+rxqFCffMLasXPy9WP GcNJoywZ JC5zr1A9y9RUYjmdKPwT9dRJwL3OV8T88gQ810XO9dnhlcOtaVkD4UDwjwH+1lAiFxQnBvj+f5dijO8MIGAPw8PFvaPn18Kz4x4pFm6vaga1/GpSkO9Y7gLju9ydzmbh1jJVSgTtvOBWUNCrTAEbEe+FFcnYCwQuzfN5cxEInaR/7Ck3sdMLpEM1xjw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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