From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=198.137.202.133 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793144115; b=rPhFiTgSunkH0UN7YvdQfXQd5/2qDHs47dcD2arZ9tRPFR+Co6fc6TM1m7XOOkBtRpuf H8/AvBO+cYysUoWa7P2Vt+NhY/F1TPnfaXFQirv57QpiigTMHkuwx18xQY5HSozaW4Qjg ffUx4UCfqT9ASNw3rSZJktMDKCDvWwwegXwZ/NzEwZsfnFrJv+ND7XnjvfGR02V6Ti312 Cg+poaKhZZnc6N6BISkQEfcpEOEWjUdpAt+qa7AiZAmp0arcJMR5bdmZg5a8tTGzZ7kKw AQylgRraoDlqLAVyRN+1kgiarMOP/c8M+HKQ0hN6Q54igo7NCglY3/JPyFPxr4bGWmw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793144115; h=DMARC-Filter:DKIM-Signature:Received:Message-ID:Date:MIME-Version: User-Agent:Subject:To:Cc:References:Content-Language:From:In-Reply-To: Content-Type:Content-Transfer-Encoding; bh=3AEKuRmRMD5kYKRL/svuIaLfmBr+e4xHMBURLY4w1FE=; b=dvwcqMk81GawdyAbW2FOL4p8F9T8YV0EI/2kLLwhHHXfxi4tz+XAALjPHY7Qdn/eSgLb o6MQhdmPhIU2CCMNAv3t8EaofNaSxaDkMCn+cFfTaRVHI/+8XEIDYfZtXHGRjUqU/+ACu UKe2N4a+TyC+cOAEUQ1KJjZ8EKWU3sNtOwfnfSGC6u6TwTFyHGgNsYnJAntDhOalnpTbU qc3nR6rwImnLrQGaAh7NI2BcmrcSF2C0nl/ekkrOZQOJLGAQA+jCkA/V6NBcJKeuyA1X4 0WlWxKu+gJC080AF5r6zwBgw2aV8Ak6xdu2AZoBCGGZG/ZmseUahoRcHCYZNyYP1A+Q== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=FxkLxzyT; arc=none smtp.remote-ip=198.137.202.133 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B052606A31A; Tue, 27 Oct 2026 23:35:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 2B052606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=FxkLxzyT DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=3AEKuRmRMD5kYKRL/svuIaLfmBr+e4xHMBURLY4w1FE=; b=FxkLxzyT+lerY94dkIEJXzfe/z e03gCnpV1zBE/dX7Cq0B3N7Wh3dZRHDdeLwDU0IwTgGeYNBxseN/zcie2fL5zFIZeb0EB3uz9f97q n8d7cR6iVFUGlDozzHUVTeKPlT42NCKL/SAgYBt32SZBRPbJkKAwXi4tBbAru/8Fb4g0BbPSBTEKq EZONvOBeItyAtR2dhN/Pr98TcnSGQAWz7UIuaR4VzkGKqf3G/tYlYdeShDG6uozFnfjEladfMxPkp 2re9Eh+Kr1bKoO0LDJHWpq2fU71CprAJGRoEB8gkLiA/ZP9HqfZVMdvL1apESLPXT5VfW4hVXndUp qLlg5gWg==; Received: from [50.53.43.113] (helo=[192.168.254.34]) by bombadil.infradead.org with esmtpsa (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLqgz-00000005vkZ-1ZBb; Tue, 27 Oct 2026 23:34:57 +0000 Message-ID: <099dc59b-0699-4c2d-875e-289cf6d32cce@infradead.org> Date: Tue, 27 Oct 2026 16:34:56 -0700 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] sched/core: Add sched_stack_end_check= boot parameter To: Chris Down , Peter Zijlstra , Ingo Molnar , Kees Cook Cc: Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak , Ard Biesheuvel , Will Deacon , Sami Tolvanen , Jonathan Corbet , Shuah Khan , Arnd Bergmann , Greg Kroah-Hartman , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com References: <3d2bb6a8508b9d801878bb82c88165a1b1ff5f40.1793082868.git.chris@chrisdown.name> Content-Language: en-US From: Randy Dunlap In-Reply-To: <3d2bb6a8508b9d801878bb82c88165a1b1ff5f40.1793082868.git.chris@chrisdown.name> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 10/26/26 11:36 PM, Chris Down wrote: > +static int __init setup_sched_stack_end_check(char *str) > +{ > + bool enable; > + > + if (kstrtobool(str, &enable)) { > + pr_warn("Unable to parse sched_stack_end_check=\n"); > + return 0; > + } This error branch should return 1 since it handled the command line parameter -- it just didn't like the "value." Returning 0 causes the option string to be added to init's environment, which is not wanted in this case. -- ~Randy