From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.web.de (mout.web.de [212.227.15.3]) (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 E940034BA33 for ; Fri, 13 Mar 2026 19:06:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.15.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773428775; cv=none; b=idr79PheZFimyuS9Pt4VPLXzvmdb1itiSxVpX1HVV75AIGxAexKfcmOXLOkzog5A9B5QJv7a43omu3fye3h1MK/Z/zY98hZaslOLQEpH+PWHz4/w9WGUmu9qzj0fj7nQOwUXXj1JRSqdjy3005ULhVgMX7mgCNJX+x92ahMSsuQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773428775; c=relaxed/simple; bh=rlfy9Js/DGMSPedGxcf2HRKYDdFbPQm1SqzIsm3yOLo=; h=Mime-Version:Content-Type:Date:Message-Id:Subject:From:To: References:In-Reply-To; b=hkTG85YwgOqURvZiSTt2OowGFh9ltfGgLnjFus2Oa0LSkea1HUAmrKw2X6qPcVOBQJsJOLVGFrLtACyJwdb1eErhig6i4ivt3gxOWZgz2nX6imHXPkMxM7hVrNaiaiVnnlZ3nu3EKjsTGfz61dVfzdifUYEXvodABXSrmpfy1W8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de; spf=pass smtp.mailfrom=web.de; dkim=pass (2048-bit key) header.d=web.de header.i=jan.claussen10@web.de header.b=S8FUv8iF; arc=none smtp.client-ip=212.227.15.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=web.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=web.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=web.de header.i=jan.claussen10@web.de header.b="S8FUv8iF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=web.de; s=s29768273; t=1773428772; x=1774033572; i=jan.claussen10@web.de; bh=rlfy9Js/DGMSPedGxcf2HRKYDdFbPQm1SqzIsm3yOLo=; h=X-UI-Sender-Class:Mime-Version:Content-Transfer-Encoding: Content-Type:Date:Message-Id:Subject:From:To:References: In-Reply-To:cc:content-transfer-encoding:content-type:date:from: message-id:mime-version:reply-to:subject:to; b=S8FUv8iFSo04ABm/WgnEP0khXBJzpNVI4jrPjBt7icfcant09Ct6Q6EUAKw3Y63K PQqx5KqV+aCo5I0i7yLXnMaYdtZghnc+RVXU75X/3a0bVYi4kG1wTaf1AzJoF6OFg DBBDmXpDoQ3/inuqRGJaH581hNRv75KNaxS3RAMsTtfO72py29gr3x+F7Sle6QZWE YVOywZU84fNU6iHDq/jVF1nzHaFYzat+oQbtg02PkLCCocWhjylVDVPpT7lC0RDqV 1yk1+nbiKGTuGJvNcqEZFl6LFAPWo87FjzIIy84ch9pwAPaTlhIjMlEIl5GFe9CRm Nb9RwT81NYF9yCOfnA== X-UI-Sender-Class: 814a7b36-bfc1-4dae-8640-3722d8ec6cd6 Received: from client.hidden.invalid by smtp.web.de (mrweb005 [213.165.67.108]) with ESMTPSA (Nemesis) id 1M5j1q-1vzVHS0Cza-00BKAC; Fri, 13 Mar 2026 20:06:12 +0100 Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 13 Mar 2026 20:06:11 +0100 Message-Id: Subject: Re: Weird Dell SMM bug since 6.18 From: =?utf-8?q?Jan_Clau=C3=9Fen?= To: "Guenter Roeck" , =?utf-8?q?Jan_Clau=C3=9Fen?= , X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <97b6c751-0115-4d00-b212-352f37e5914d@roeck-us.net> In-Reply-To: <97b6c751-0115-4d00-b212-352f37e5914d@roeck-us.net> X-Provags-ID: V03:K1:AOOmijwqOKQJyyn7l/Qzk1rL2l5ykkGSXfkTsZ6RHCVxibsfBsf kA9kw8eMWV61ejTrlIxrje7pR2ecsK+dvlM3JtzS7Jo/oAQkRV/SST6FLq0REmgpEYRGLne 7HG6Fy8RsmEJMrwAtbZCS2oJh3NuG81VhMYFMb5lS6AFsnMaBzmVNwS3oKhXjeTGpdxHyFM G2ZRkpjW0nyTpoi/IpzbA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:qlVm6Ur+9rA=;husxwOXrm+Zad92Ry+N2hZKSW4g q8KxPV4mwDu5H6Z2P6tUwcHvC70jCFHuZYGoTAUWAe8gDEW/vuZN6QMSlO9ChB4FoP/ehM2oU R49dYhlwioQqm8imLyuaogsJftkCb0AYi8XNUF8c+ZzmQZ5Qf6t1z0/i9H2XRIV/YH77x0nGP MfEZYI3E9xK2Ci9NdK06ImjzQx29+uuhDta4UkH9/VXqQR6nq8d0+HEdxOxUlOFhBuk3F6rFy ddjlE1qaFnhvkyVh44EXcBBqM6neHNxAoK6nU256Ks4ECpsYl7Whfc1z4JVB5KxFE6vCXBWDe pjMpVqIh1nClN2nCcCxoM2/Lx4bQPXl4Kp5YfRdYKy9jkStB1RcHHEQ8esDume/3X3d8aVPZ1 xHEYIYbEo3qFwlplb75GIfNiUSZNz53hcpny39sDHDIEGksUPH/tHa+VX9hM9k2DObwsbbZSP QRzEdWBCVY5iDuXwBi/hXiEMpCCogdFl/UBigau29CY6yyVzXY3CjUpvd+scfaa78wRrOULvk ra9CbowbFNSKeIn7/aiKYz29KUW5AoDdxAuY/sR1RyEIU12qyzGeFFR4HPHAoG+k7TuONNtmO j7i51ohk6UQN1iJBfyXuLsCnxmQ/ZO5bfPhQxXsKVCPhjLll5jrdv8+/6Y+rblZF4ld/6rKxv xSmOe5awGZ8eQwuXNvhmK56+SS7Y8qgaysuFSwM/6++S/ZWvV2p4aYvTM5Sy/DyIMQImDUqB1 xRgPqsXnUPWy1ay7dLfOA1wxCsCJuc/BWmuW5BbrTfUcGXQW0qlPeJCzSr3PCrr0qqVJHHAv4 5C1sozocqfvxIrFlGACTrKxO3/uTBCx76qte7fFrogADDXbYm3LpCiNggYRvQi5EHsSjAH4vs +f8KDE+otns2sRTsTnLONRtFEoATgVKuL9vT5OtrATPC6jxi2gJF7yRzt4t8Nw6KZCdu9SYM+ 3s/qz+XYeHO2xbd3L96Lo3PRcwTHcgD7wPZ4FDxBcZuJANKX0/QNAHoZDG9NptCY2BM7kQjCB ugxAv22Eyssh6nrLPUZlCiLJvqfmCN3JIXkjxfgRLmjIa+v5Ws4W0i15xQx6HgduKaD/bSOJG Y1B8kkfkp9Ch+nxir41M7WvUEs4XDls8rcWeB6eW5Cys/pwROjntRDTE9Qse/s1yA2DxjhVlm YhKU3mlcDgliDucr2nvvTMricnibfTjwkfPDzLKpdXPYOYlgzGJLk9RNER19ZVNaoetqa/YpQ zbrHLXMhLw6bnrMaEFwnRPRnwJTk6LYXq+jZXDVb9hpBmurddHm4x8s3E1WHKyQ79MZXX9Sbo d7e9KmMjqDkuNNgOenw1gJYRbC9Z8RWDzDXG2o0IQzrOH8SSfh7s0RC4UmYZwlHUAZsMQSYgv WZWmmQOjjAPSAtWqqSCBhIYXjOKecIHAivsd9FmMBflS6lJw6/qf6ij1QjCKeAJ6ssGE0PsjZ VnvLiL4u91KwYNFaEwxlHbFQYHvj3OwbTgJmfnhBbfkeDm4xDS5LtR7CWRb40HSrVBoGa2JDD 6uSW2f0q+1eF2YnisdqmuuxCdAmCwD5c99NjzZoQXIxXZxFGCyPQfZ1ywd/6tInyQ7UwDD4YV Jzw7QEL+8/3oH4hZZh43QZ/Xm/BKWMHIw2WCtwBwH55iZSVjerP2MNq5M1Bp3iOeEZ+JsJV8v XbYgpzZD6jyB4QPrK54DOOyIjQQbxPp6LMJAIKQIbbKYiJrGO4DPMTFvpnB3Dv9vsI9gqmQvR dLu2JAwzcwac6SKczsE22QvG8iVKEOywoSSRZqnVslGQtt3Oguo8q20aCYFCUDPWpqllvMda/ E8+NeADCJyeGcOuOkdVJtfXwjKtEY2ZeNtZfzwLkMhRVgVkQhbRP+Szw4+E0Ry7mAF2YIvvgM YHkbP3Ivjz2bwnnOkjVAN/wEcbNP+CI+Kn1Vg2hoF7j3pFRb9anLTF8aBSoqW3zrXCKuwql2K pGFuVoGmNBBfba22lUYgfidZxL3PsWr3EEf6ILRKd1qUcnj+VG5ZWgrqVcy3HMeJsuXag71F0 0mnftnPkX6WbiS/dtraXijpaT1vo0TGs4iKKfiMTzPOrVFktsTbHsyWTs28iSyWbvhPtGhcuI hIMrf1rFfkS8onWF19XqqTBNblUJBZOM/VBy0FRWhLG/ydk33A/cHszPzvQQKV4OS6Ec7lgCb BaaL08qWFKjv7XaOlg7/L0PHQuoDAsct0iLsqFRM+zbZ3xkBkvHIDZZ+bbQlHN9xyoun0RRFL M1Dn6a04Kv4tp+WTto9lf09cHqikvcZx633Lewa6JQucSRhaskAmP50yAbCc/F3psTXYG37g1 +7marnJtHK6NLE4EOT4kM1BYuUpjjXRBq78+EXuUSLCT0zFDEzQ+ezVDO1j1vX6huLkG9k1IS oGc1I+ZSXWZE/0EW4oXC+8vldOD6PZQedNYYJT1qDGh/+D2eSY5rt5a62V6EyxsHbi0royj69 urhgu/RIiWsQZV7LOEfAWT6QKjgOFj8veqJqFXDbcL617fx4i5mVPcZy52NmenHnslcuSShha PxcruNEv7I3OSTYsoPfdGNZAVyghyNtTT7Ko56HXGQxk742XUZ/C1h8xOfkmGZHT7ZkFqIFeW 3xdkZtHJNBU5GRxY6hNVtkFpG3HCdkIshgAFDKBlr3ADzEsI19z/wftyXJ5EmBryww/oNqEA5 5CP3kC1BAxDFsaUlrr81hysV6YzIbN9bGTjnNHXN2kb3mjkD7RcjWXYHWCQ9rzAKoWEH9iZFm EtVGVqPSLyR1ZMr9emOXBUVrTTifw1h+Aj6A2hCimlIZV/HhBVMf/2yHWRImjM7afthk4IM9z Q2KKIFUMnDR1AuGBpDB/ATJIeRxWNUKaGuVB8n3I0eMFakHh9t8JsFZukNZwjB9K17/ACGMFG PQkD09p0X/LL4t6FJB62fHb74nb5FPOl0FaDQWjsfC3jHvjAMo3JzVDcUS29+d2NXY1ypzK4f Fk6yrTeDcuWYGJl4+/rGWAcZPzyc/N9c0bcQ/safRjV3R++d9cjETeIhQZfh44HQfjYXV8lcP m+oEw0bnOttkN9Z+1hR/OYGZv/leCVe/NIip5TBZFkl2wZMqvhrzh0o7Fn2obA75+6m98HnH1 xiWKxosvb1okns7GETjYeslIk7vg3ztaon0eeO8uAatBYvKLC91RHYA0A+IuT3UQ0bcUj3/Mf rVs3o2aWMmBQnG61jZI5YvheCFV1Jw8sVYC96flVFn7Z9dBZtdkZguR1s56KmGrlBuFaWKZ7v 9ELFpvWwp5OSJnDUmHL1ZRxh/ivZ65i486i1YWNlkaLZMZhW/M1JXYY0KUVoeaxZipD/OCQzB FW8Q3yZnV3ZLISKif34Xu8Nv+O3xFthdErz/z6W3rJtB8KciPi7Mi/t/VPUpgcW/Cj1xfIIm2 yjxEGPTRLK9cMuONuXWPw5/Cdng0YK8XpEaPRUNriSzQHp+U5494D0lwH/QDmiBNQf2981Bl8 cHF4EuCauN1+9VTRFfOMONjF41+Mwl/+vP+SOnme3vc3qcCD/hmJCXrkc/PHOQEiX/fY7eGOm qd3UT05seEDbmoNYHSpw/m/sm6FrMzMrfuB0+pr6mNymIaEs3tC/xH4Txjblqiehg1wfivRr6 huZ3qGO1Ky96aTIHnPp9/XV92IuVHK2l8KeKOVYPLEk8KHwWbVPhLJH4wduakknnFSFooH6Cv w1ABUwX5SA4btmy0VQvJBGsdfq7E577aa73/O2fsCKmEbvXIFtOUvgJmEDD9hcd1tEG3hXqho HSaOVISZSfxHdhhfkHQKY2YYbUM1vm5CnHZR6DwJgAurEptmHNj3oRXFI3K0vnRoG6ZabqGZx XY1srjwhG++bSey1uamrsgxiePi+n0JStfQimDgTVz3iqK/9iXFngCvXQCxcHeqJhkPsUZtvw n2fktrei2x2bjYfDAkm2uJl5oQbRsdOl/kfwrEl8w6Pl2BNamUIe46UP6iPkp5Z2T2y7N30Uh nmIyJNiE2EopFxMnaia1t+3b8HfOQDfUdsLOoGue8aI3Fw3IXz2u8pOqYpA31kD2xzh0ngwxr kPWomYkXvuOJIAAiZOuss0dBMrtfyovsk5+3IqgYffExDQMMpFaBVc6AOzcSN+JSUJ+vQloQa CQg8Ao7HBxjpZ77kxZ+6fc5fkMVMzZ4EPLXeoIgcMx3xrRczKD04qBEysdH1tLtzuKgLaOWC3 fiBa4TtYc+ddjlL2cIpVLU6Wo3+HPXVCXwOVwQJv4k4cbLDZ+6UcPXiB2GYv9UlAr2yAQ4N14 urR1t5KuImILtTw0+vrXxBj6XOs13dYiZlsfcvLjT4JQFWejHNLlrBKQ/ByNRMTgm+LEW3C8K 6i3d5XTIHS3TKsG3EiJdh35IPzT0Jer05ZlzQ8n4v0TUj4y7ZQZ9FfybD/RMf+ftE45nOap0V zOhDAZ0dQxCvLxsJqipt+/vcqMMNsWeCl8/omFQIQIdV+JTXYEdNJHRNcHF6EIY22PxRdUV3S RwSpY7B+JBiaGsRFbJslpCJZf6Dytgujx5GisRa9656ndd8BEqIZQBW1alDSKUaluCCLd4OEz CGRWJ93RYODWiZ+EyyjDTRLcCxZwRbHkE67vmo5NrCAP+h2/BCjV+m9hlAHKcfZGAzsjfmG4t f2IQNTouf4/S0xmlzMkwYJCk3Mf6nPU9dhPXQI+Q4+FBFm+qnnmz6SZ3/hlmr5PSXRs0ccXgK gZUwC559H4zLbQQkryPF8kIhG1wOc4wILRwjvn1MS1uoWI8qVrrxhS4nDvhwhRdNaVcgxspq5 9XbZ4t8bj2mduePaT3pOXNrz+1+6Z1Gl5EHKF3XFQx9LmEfUEtNay/3J687QKvwfabfph8ZcS UObbimGxa0+inKxFdUTqjHcvve21ugCbm0gXikyyWtsp7WB/sgr7XkNCQiFUgvhlLk7ka4pmy CVF+NeSStRmhYv3NbQy7xkBbVc1g/6/ncq0Off2wOqr8sqpRG2P158r+L3G95YMTdwT+akTQa fDC9/rO2iQxw1fGLkrN3hXbxtlP8I96rL9lFvmIp9TGbsXTMFAkPIr/BpMfRUdiiD+1defl6s 8hKGHNbzxdzVplMKVfc3VnDD6DijKL6KwY6pKUxgqn3sYBV/CyTEqWSi1hZv3qKlMgL+R6CJJ wub5NeU15bnK6W3mF9xBIgWbiFjOzZRyMheNerjThDKn8dIv5XcAh9Lqg9cl/wc0bA3hJhBrB H9Zfef/XNibwg+5chrMrm9/F1PxbIcRbDSAhZeoSIMISLSnSg5+RE45LdySRDTv3UV8pyUSw= I was actually in a fixed state for some reason and everything worked. I th= en tried to get back to the broken state and seems that echoing 2 into the = pwmX_enable endpoints followed by reboot did the trick. I then reverted the commits you suggested and it indeed fixed the issue. Wh= at to do now? Should coolercontrol adjust its code to this change or the co= mmit be get reverted upstream? My two cents regarding cranking the fans up to max until the control softwa= re kicks in: I think medium fan speed should be sufficent. I actually would= always default to BIOS control and make the control software in userspace = responsible for setting pwmX_enable. Regards, Jan