From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=82.195.75.108 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794414965; b=p0vK9x7UyiZgFv9CLpUgxKMLA6vBvW9HkIB6kPoPxq5QH9erUT0qeZyxfn+5q9FncUzl LWMvILN3KKR3Zb0RhQcniduAmp/g75QqDYnWMbeOUSywVbna3grw75262zsiifb3QAOUQ RfTOh0qjaa/YmWJ+uUWr+yT+XY392d20SHnPFASJGt/5Jqi09yhZL+2JnpZgIpdBBb7/a 0MNnMCPKz8QyGMfOoGMFanKNMGv9DfOH/MRTvsU6T2iBrDrXAHBgo/D7kDJ0Zceg53WZ5 6bc/pYHkxv3iemsUaqC6XVdnZST74tBY/G7v0rPca37HYeElrRTID/PVxd4olXzjl2g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794414965; h=DMARC-Filter:DKIM-Signature:Received:Date:From:To:Cc:Subject: Message-ID:References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To:X-Debian-User; bh=9YFnZgNhPyoA/hpZg7SqznI4aFLyTBKsRmaGoanNujQ=; b=WC/U5GIL/ZiwWjXVOsQuirHQsZpEPOH3tzUSCbMkD5xmqcDpbshSL6f6HQJxIR9pajiM 5yMC8i9dp/ZgdkF50MxGaJfrwVz3vmVVdDWJOXfP95SbbWsZN6pKUruIzhHnbO/gLk25u b+mRlIQDu/XlYyIxHQ4DNduJm1qYicZqnQ10iwcGdH8FBTONUsRrBFI0RSFWmH5EJNhXT 0h9MvYyg1gZoZIXid35eCcIp1iZhVX0CuGg0s+WhtyBz20kZ+9mab0ZtMz3OrZDSua3tP EvweuZKD5z5zK5OxwuT2ddWBrc7QVQ8E/rsqG2JO2Bd55LwMOXKCFexnCt9xxjZ/mNQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=debian.org; spf=pass smtp.mailfrom=debian.org; dkim=pass header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=WUjgm6P7; arc=none smtp.remote-ip=82.195.75.108 Received: from stravinsky.debian.org (stravinsky.debian.org [82.195.75.108]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 073DE606A32A; Wed, 11 Nov 2026 16:36:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 073DE606A32A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=debian.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=debian.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=debian.org header.i=@debian.org header.a=rsa-sha256 header.s=smtpauto.stravinsky header.b=WUjgm6P7 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-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=9YFnZgNhPyoA/hpZg7SqznI4aFLyTBKsRmaGoanNujQ=; b=WUjgm6P7Tb6AYnbmfEnGD0Agbc z/G6mQA4hPMVTErHI5njl7YrXg/fbTe1oHjSkCTN0auBCNviblIjO79k86LzMabO7EyMNYa8P3Fle pdJ2Mhly0yKYYKZguLanbjW2/vRs82T04WESPK2n87DtPsMpOL1jOMHU39836vSJglLx/V2xvPQvD 50a56mMiwQnw78dA042OLAb6ooy71sDgWDfQQxZ0PCZOjnEYNjhjdG3ntkq0FI3kMSw3WoRK4thUc 3i2yNG/cumlm68uo6mqTQxyGskujPKZMlae7mBlTEfEj2CuLY2MziTeMQAL2e8gYO2odShS/Zpm1r JliCxg2Q==; 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 1xRBIW-00DJlS-0Y; Wed, 11 Nov 2026 16:35:44 +0000 Date: Wed, 11 Nov 2026 08:35:38 -0800 From: Breno Leitao To: Rik van Riel Cc: Tony Luck , Borislav Petkov , Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Qiuxu Zhuo , linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH] x86/mce: Restore rate limit on MCE logged message Message-ID: References: <20261108143751.3af49e48@fangorn> 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 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261108143751.3af49e48@fangorn> X-Debian-User: leitao On Sun, Nov 08, 2026 at 02:37:51PM -0500, Rik van Riel wrote: > FCommit ea324444ece9f moved the "Machine check events logged" > print from mce_notify_irq() into mce_log() and dropped its > two-per-minute rate limit as a side effect. > > A particularly unhappy system can spew out around 100 million > of those "Machine check events logged" messages every hour, > without that rate limit. A large fleet may have several unhappy > systems, leaving the netcons infrastructure somewhat flustered. > > Reinstate the rate limit we had before. > > Fixes: ea324444ece9f ("x86/mce: Restore MCA polling interval halving") > Cc: stable@vger.kernel.org > Signed-off-by: Rik van Riel Reviewed-by: Breno Leitao