From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 E5B3C298C37; Thu, 15 May 2025 12:37:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747312649; cv=none; b=c01JwKpUM04gmAKX5kp4bo0oThzPWikYrMVgteSXwRpRm0DbdKDDFuBdJB6tCjva1pAapOytsnIWp2XWWVmDCc+keNLCHsx4SXqJLKKKxF8Dg39A2NFtq//cQ8/R/9qFMBQrHDPpRlKoEKJM4OSyhZpK7VuiNd0y0XYaEVefqMQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747312649; c=relaxed/simple; bh=oUBmBEe2ii8BtwyBF2Q+wfvUX7Xj1f2iMT4zn68079k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fxr7kHTX4tHw57J9xvXIooFf6aPkzYWwnjVWwFP3HPoDwjrchH6IvoIuLo0Gkkg1Ac6mV9uHCR5dmYi+pq2TizdYzb1naKo7oui07C4maDj8ACu5GyfJCJC6NjTfh7bRj40JANjfdDGsosS/TPwkX9DlYZdQmw3Pk8JS7Xe5/mk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=M1YstMjS; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="M1YstMjS" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id A3D1940E0222; Thu, 15 May 2025 12:37:24 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id v0cjMTzp2qCl; Thu, 15 May 2025 12:37:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1747312641; bh=BuDy4hEIt0KBDD5XgNb+TBGdfMJZjNXJURJrUohP5Bg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=M1YstMjS2fbmqi3/fst3t55CYfy+LrjssDtkFvCI4B6pbQmT7nyA66f60C8GjNjnK kWjtqsUc2OSg0jMrCXbs186P4ijpetuWwzB4Meig4vjbktzkUio5VTFcFPI+saoTGa YTWyH2i2NNplkaiY6Antt9yaqlM+cOtI2qo1wn6eoNELPzuVm9WbdixyEdFfH9bkaz CAXS7lxGfly0gEqo3dA50uUWRbLY0IG4V+hhdq3PY6oSlP/pxQIoixpGAggXM7iMLd iqKTmZ6xr5ZstjBCHgxxTzlnBzrv2ww0M00pxDpdOdHg2Uf5fG+ZR9W67yT6Oy0kQT 5MyDLIgS4oCiYM1Jf4ItUIa2t3Q+WKuqOFP2J2p4x9sqwa+0Km/4T4jdeb7kI7yy26 UYDmcU5e3L9IxuTH7EJx4io4aG9HE1mrdixK0kHpX81t5NYc2svOEiTVdCkz8o4nsn 2wRsQPxYEE7iQSM6DxJTjBCCIXuMPvuOWTDxHGWTliHp+K8btQV8bs78kHEv3ipgkb xFs2b4sWIv7yvYfh3ffEcbABLxTqHfPX0dBJkPrq2TjdrIy6r9x1RaUbowhYOWDWCK 3tHpaRy2wNcVe1BN7v67uj6Ej7d6xf5iOGm6m6bZKfX1LXmsQZ+tjPlnZ03TKxPsmq 3QOh51PJum5SUvXSTzlMfK0g= Received: from zn.tnic (p579690ee.dip0.t-ipconnect.de [87.150.144.238]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 1DDF640E0196; Thu, 15 May 2025 12:37:14 +0000 (UTC) Date: Thu, 15 May 2025 14:37:08 +0200 From: Borislav Petkov To: Yazen Ghannam Cc: "Luck, Tony" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" , "Smita.KoralahalliChannabasappa@amd.com" , "Zhuo, Qiuxu" Subject: Re: [PATCH v3 17/17] x86/mce: Restore poll settings after storm subsides Message-ID: <20250515123708.GFaCXf9DLcsPqXhFSn@fat_crate.local> References: <20250415-wip-mca-updates-v3-0-8ffd9eb4aa56@amd.com> <20250415-wip-mca-updates-v3-17-8ffd9eb4aa56@amd.com> <20250512074616.GSaCGnSJbBpToh2VM6@fat_crate.local> <20250512154315.GC2355@yaz-khff2.amd.com> <20250513175543.GGaCOHn26isB18J9ig@fat_crate.local> <20250513210640.GA515295@yaz-khff2.amd.com> <20250514143416.GA597208@yaz-khff2.amd.com> Precedence: bulk X-Mailing-List: linux-edac@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250514143416.GA597208@yaz-khff2.amd.com> On Wed, May 14, 2025 at 10:34:16AM -0400, Yazen Ghannam wrote: > On AMD, MCA bank management is always 'local', i.e. per-CPU. > > If a CPU is in the polling function, can it be preempted by an interrupt > (not MCE)? Well, ofc. We're polling with interrupts enabled. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette