Date: Tue, 9 Apr 2019 09:55:40 -0500 From: Karl Denninger <karl@denninger.net> To: Andrew Gierth <andrew@tao11.riddles.org.uk>, Ian Lepore <ian@freebsd.org> Cc: ticso@cicely.de, "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Re: insanely-high interrupt rates Message-ID: <701e011f-3088-8ed4-4fbb-6fa93ac698f5@denninger.net> In-Reply-To: <874l7fyrpr.fsf@news-spur.riddles.org.uk> References: <004ddba628b94b80845d8e509ddcb648d21fd6c9.camel@freebsd.org> <C68D7E6E-03C1-448F-8638-8BD1717DBF44@jeditekunum.com> <ac7d434f16f3a89f5ef247678d6becdbeded5c3f.camel@freebsd.org> <CE40E2B5-2244-4EF9-B67F-34A54D71E2E8@jeditekunum.com> <f60ea6d2-b696-d896-7bcb-ac628f41f7b8@denninger.net> <20190319161423.GH57400@cicely7.cicely.de> <52df098fdc0caf5de1879c93239534fffbd49b56.camel@freebsd.org> <40f57de2-2b25-3981-a416-b9958cc97636@denninger.net> <669892ac3fc37b0843a156c0ab102316829103fd.camel@freebsd.org> <663f2566-b035-7011-70eb-4163b41e6e55@denninger.net> <20190325164827.GL57400@cicely7.cicely.de> <3db9cf8a-68ee-e339-67bf-760ee51464fd@denninger.net> <fc17ac0f77832e840b9fffa9b1074561f1e766d8.camel@freebsd.org> <d96c7f42-f01b-8990-a558-ee92d631b51d@denninger.net> <dc56a8964cae942354cbe2b5b0620f2eebb569bb.camel@freebsd.org> <874l7fyrpr.fsf@news-spur.riddles.org.uk>
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This is a cryptographically signed message in MIME format. --------------ms060503020704080604070306 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 4/3/2019 11:48, Andrew Gierth wrote: > Per my earlier analysis, and the discussion on IRC, I'm now running my > RPI2B with the attached patch (against 12-stable). So far, I'm not > seeing any issues. > > I don't think this patch is really a complete fix (in particular, on > arm64 I would expect the opposite problem to exist, with spurious > physical timer interrupts instead). I'm only running it to confirm my > analysis of the problem and to get a working system. It should do fine > on 32-bit arm though. Any progress on this into or within the tree (or comments on what is a trivially small patch) for 12-STABLE? --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms060503020704080604070306 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgMFADCABgkqhkiG9w0BBwEAAKCC DdgwggagMIIEiKADAgECAhMA5EiKghDOXrvfxYxjITXYDdhIMA0GCSqGSIb3DQEBCwUAMIGL MQswCQYDVQQGEwJVUzEQMA4GA1UECAwHRmxvcmlkYTESMBAGA1UEBwwJTmljZXZpbGxlMRkw FwYDVQQKDBBDdWRhIFN5c3RlbXMgTExDMRgwFgYDVQQLDA9DdWRhIFN5c3RlbXMgQ0ExITAf BgNVBAMMGEN1ZGEgU3lzdGVtcyBMTEMgMjAxNyBDQTAeFw0xNzA4MTcxNjQyMTdaFw0yNzA4 MTUxNjQyMTdaMHsxCzAJBgNVBAYTAlVTMRAwDgYDVQQIDAdGbG9yaWRhMRkwFwYDVQQKDBBD dWRhIFN5c3RlbXMgTExDMRgwFgYDVQQLDA9DdWRhIFN5c3RlbXMgQ0ExJTAjBgNVBAMMHEN1 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