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Fri, 31 Jul 2026 11:22:03 +0000 (GMT) Received: from [9.43.104.204] (unknown [9.43.104.204]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 31 Jul 2026 11:22:03 +0000 (GMT) Message-ID: Date: Fri, 31 Jul 2026 16:52:01 +0530 Precedence: bulk X-Mailing-List: linux-edac@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RESEND] powerpc/configs: enable CONFIG_RAS to fix EDAC support To: Michael Walle , Borislav Petkov Cc: Michael Ellerman , Nicholas Piggin , Christophe Leroy , Tony Luck , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Janusz Krzysztofik , Takashi Iwai , David Heidelberg , linux-edac@vger.kernel.org References: <20260730105546.3658570-1-mwalle@kernel.org> <20260730185620.GDamueVIGV-8iIzozX@fat_crate.local> Content-Language: en-US From: Madhavan Srinivasan In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: E8EEELUfbfzjJ7Esb8Rgl4gViW_8s2P2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMxMDA4NSBTYWx0ZWRfX0phIGJrhmGVw lwuAGUvDAfCq1O+CRllKFjgC0SrkdIBiJ/b8LCfbLuYSzhi8wyku29LwTU51hYzvfUrm38qmmPS t5d5AaEUE/i4YQolSnka5xme85YeSAv3DEs/Ng89uwqbl2S/J9uvGMiwPR3iikk5j+W+kBqMM4m 69N5+Q4muFuh7osL/aKiFEAtiQ+0JJ1QXswQzkUcCCOKAAinz/aou+xznxKtbxf3L8DhH0S8uY9 tibH3qLgWuz+6B5o02+wRq924vpgGdu1I4uaw3+xT7aX530QFk4/yEw0H8bAPSzJEni77i3jrep GDEHvYX8C7NG61Mdq+uoeuH0YZqUnyMiWV13RyYga2fFKbmiQit2B1SoMeSHGJGbG0QOhK5cqXb k1bCMfloioCPjhjlp95HMmcFOp6oSVfSjhpvQuHjT+iEURD5/q7/HBEkGMUbZw5hkUSgIevoJva AKbh0SKIT2R0yvVhTDg== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMxMDA4NSBTYWx0ZWRfX0TI984AiOeN1 2erVke2rrkI7Pdo6BQdoDA9D4mvDZwblT7EKE8rbjJwybJ+/u9Ug9O+/08ay1BbsHwZFjv6wD6U 33JCHe1fnNhnlHYcTgjDHXfvSnBxWSA= X-Authority-Analysis: v=2.4 cv=AZeB2XXG c=1 sm=1 tr=0 ts=6a6c8563 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VwQbUJbxAAAA:8 a=uMe6KACeWnfwCRVUapwA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: MYg2Y5N7fT8TYl8Yow4A8JUutj5FVgym X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-31_03,2026-07-30_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 priorityscore=1501 phishscore=0 adultscore=0 impostorscore=0 clxscore=1011 malwarescore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607310085 On 7/31/26 2:05 AM, Michael Walle wrote: > On Thu Jul 30, 2026 at 8:56 PM CEST, Borislav Petkov wrote: >> On Thu, Jul 30, 2026 at 12:52:18PM +0200, Michael Walle wrote: >>> Before commit e3c4ff6d8c94 ("EDAC: Remove EDAC_MM_EDAC") EDAC_MM_EDAC >>> selected RAS, after that commit, EDAC depends on RAS, but nobody enables >>> it. Enable it in the config again. >> I have no clue what you're trying to do but forcing RAS=y in that config >> better have a real good reason why. > I don't get what you are trying to say. CONFIG_EDAC_MPC85XX is > enabled in the that config already. It's just that the mentioned > commit broke it because it removed the "select RAS", while > EDAC depends on it. So yeah, up to that commit it was always > enabled in that particular config. > >> Oh and we cannot support CONFIG_EDAC_MPC85XX anymore due to lack of hw: >> >> https://git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git/commit/?h=edac-misc&id=749c5102487b558cc7d73961a6d0da2fceaa022d > Still, it's already enabled in that config and it somewhat recently > got IMX9 support, so I guess NXP is interested in keeping it. > > That being said, I have the hardware, but right now I don't have > much time personally. The best I could do is "Odd Fixes". (I also > have two pending patches for that edac driver, yet to be posted to > the ML). I dont have hardware to test this config change and currently platform is in odd fixes anyway. I can take it via ppc tree but definitely need community help for testing fixes in future. Maddy > -michael