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 85921ED7B9A for ; Tue, 14 Apr 2026 10:30:00 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EDC7D6B0088; Tue, 14 Apr 2026 06:29:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EB4A06B008A; Tue, 14 Apr 2026 06:29:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DCACF6B0092; Tue, 14 Apr 2026 06:29:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id CBD376B0088 for ; Tue, 14 Apr 2026 06:29:59 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 82265B9A8E for ; Tue, 14 Apr 2026 10:29:59 +0000 (UTC) X-FDA: 84656790918.01.96FEE49 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) by imf24.hostedemail.com (Postfix) with ESMTP id C7995180003 for ; Tue, 14 Apr 2026 10:29:57 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=debian.org header.s=smtpauto.stravinsky header.b=nFYlpAcO ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1776162597; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=EW3Ch5R6PoJ9WqT8OIObJ3ll1Aqj7CDBKj5ebouaGqY=; b=OPl/3TNaYiPwEolWcFInniaSEu9hM/ta3z/GEoB0uuwFgiYWeXTevT6T6SvIkLheinK0M3 aZ/EMPEuQtJ1pYlx7x7vMQkfrbKu7AlZoPpt7MGsCXo1rET0/E31nFbBFvaEjQ4lW7UOYF qmR218RUGPY89WNoSD7H931vhFTpySs= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1776162597; a=rsa-sha256; cv=none; b=rnz4KUinwCWR89BsG8LjlVtGMiKXwvDz9FAkaSgV8FRKchk1tdJ21bTlKRB/9Q8HmO0P5a 3Z/ae3C2BNRb7SnnrGLgLfRYsn261IgwS/a6nKqozXtB/VvyJ4JpmoQro6jjhlKP0gqURK Iqe27uorf4217G5mrXvzI/bByeQiCRE= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=debian.org header.s=smtpauto.stravinsky header.b=nFYlpAcO; spf=none (imf24.hostedemail.com: domain of leitao@debian.org has no SPF policy when checking 82.195.75.108) smtp.mailfrom=leitao@debian.org; dmarc=none DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=debian.org; s=smtpauto.stravinsky; h=X-Debian-User:In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Reply-To:Content-ID:Content-Description; bh=EW3Ch5R6PoJ9WqT8OIObJ3ll1Aqj7CDBKj5ebouaGqY=; b=nFYlpAcOdKWY/6NjfJ5sKtZn2+ yjKajGrt+KQDVCoMkfvpp0m66hBqUp6eX1iFWPl/06IEsLZ6MA9+kAsqiUDYrfMc+mWHABw6luu7o SXIjoXXcCLV8fFxNTjwcvlIn5E2iVSrOAgOlsircvQRLnAsvWyeq7dBh9lkFuKcgsJ0R/wSkgYzYM qHn+4DyoA5hgvYpkvNSX99YkhgQi5VJjKK/yY87vXgkCfgrRbWaAx0a++OTy0BIGG2dotVDqEEXL2 yj7SFm9+QMpYQyqJh64M3yVXtkcG66FenT8vXCfyr6CeHrCw9X0a+MPfPGZxvlRqyICx4blD4CoDD lXKFA1ZA==; Received: from authenticated user by stravinsky.debian.org with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.96) (envelope-from ) id 1wCb1Y-00D0BU-15; Tue, 14 Apr 2026 10:29:40 +0000 Date: Tue, 14 Apr 2026 03:29:35 -0700 From: Breno Leitao To: Miaohe Lin , Naoya Horiguchi , Andrew Morton , Jonathan Corbet , Shuah Khan , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@meta.com, gustavold@gmail.com Subject: Re: [PATCH v3 2/3] mm/memory-failure: add CONFIG_BOOTPARAM_MEMORY_FAILURE_PANIC option Message-ID: References: <20260413-ecc_panic-v3-0-1dcbb2f12bc4@debian.org> <20260413-ecc_panic-v3-2-1dcbb2f12bc4@debian.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260413-ecc_panic-v3-2-1dcbb2f12bc4@debian.org> X-Debian-User: leitao X-Rspamd-Server: rspam12 X-Stat-Signature: 7jheuoapgue163bn8yabiwgtqqngqjg9 X-Rspamd-Queue-Id: C7995180003 X-Rspam-User: X-HE-Tag: 1776162597-703409 X-HE-Meta: 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 GfSibywN Fv+C6pmW5Mxt/iUrNUvVwyWxmMH6IvCeCBY9b62dxHdLLT1UJZ08m6mOIEhbICC4G3yHa7CDyl6gFOo8S/pQIrmJ3nHS0FZTtb62XpKdLWszH0RAqRgfHoPdbOOfaBfckQZoRk/set8yYc+IOJPX5vliMf2KHPCSJmOzg2g8hOXdqkHO2fdAaIK38sGn8cjsszKEIeb8OXmWFfntw6mCUUuAnROuFAu0ztPI0ACzeOLTinwtZqvC/i243gZ1Sx1xvbrM3bRSnpgYtjbjlWDbGsIiuQPwAZF7SEYg+n0aDi+Am2oYcndJ8F3X5aq080L+NJHWG Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Apr 13, 2026 at 06:26:34AM -0700, Breno Leitao wrote: > +config BOOTPARAM_MEMORY_FAILURE_PANIC > + bool "Panic on unrecoverable memory failure" > + depends on MEMORY_FAILURE > + help > + Say Y here to panic when an unrecoverable memory failure is > + detected. This covers kernel pages, high-order kernel pages, > + and unknown page types that cannot be recovered. Can be disabled > + at runtime via the panic_on_unrecoverable_memory_failure sysctl. After considering Linus's recent feedback on kernel configuration complexity, I'm reconsidering this approach. He recently emphasized: "The kernel config phase is probably one of the biggest pain points for random new people trying to build their own kernels, and we DO NOT ASK PEOPLE STUIPID THINGS." --Linus https://lore.kernel.org/all/CAHk-=whigg3hvOy7c1j1MXFy6o6CHp0g4Tc3Y-MAk+XDssHU0A@mail.gmail.com/ I will respin a new version, dropping this patch from the series to keep Linus’ blood pressure in check. --breno