From owner-freebsd-arm@freebsd.org Tue Apr 9 14:56:49 2019 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 288A915311B9 for ; Tue, 9 Apr 2019 14:56:49 +0000 (UTC) (envelope-from karl@denninger.net) Received: from colo1.denninger.net (colo1.denninger.net [104.236.120.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3C9B7699A7; Tue, 9 Apr 2019 14:56:48 +0000 (UTC) (envelope-from karl@denninger.net) Received: from denninger.net (ip68-1-57-197.pn.at.cox.net [68.1.57.197]) by colo1.denninger.net (Postfix) with ESMTP id 20125211083; Tue, 9 Apr 2019 10:55:41 -0400 (EDT) Received: from [192.168.10.26] (D16.Denninger.Net [192.168.10.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by denninger.net (Postfix) with ESMTPSA id 5F1508271; Tue, 9 Apr 2019 09:55:40 -0500 (CDT) Subject: Re: insanely-high interrupt rates To: Andrew Gierth , Ian Lepore Cc: ticso@cicely.de, "freebsd-arm@freebsd.org" References: <004ddba628b94b80845d8e509ddcb648d21fd6c9.camel@freebsd.org> <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> <874l7fyrpr.fsf@news-spur.riddles.org.uk> From: Karl Denninger Openpgp: preference=signencrypt Autocrypt: addr=karl@denninger.net; prefer-encrypt=mutual; keydata= mQINBFIX1zsBEADRcJfsQUl9oFeoMfLPJ1kql+3sIaYx0MfJAUhV9LnbWxr0fsWCskM1O4cV tHm5dqPkuPM4Ztc0jLotD1i9ubWvCHOlkLGxFOL+pFbjA+XZ7VKsC/xWmhMwJ3cM8HavK2OV SzEWQ/AEYtMi04IzGSwsxh/5/5R0mPHrsIomV5SbuiI0vjLuDj7fo6146AABI1ULzge4hBYW i/SHrqUrLORmUNBs6bxek79/B0Dzk5cIktD3LOfbT9EAa5J/osVkstMBhToJgQttaMIGv8SG CzpR/HwEokE+7DP+k2mLHnLj6H3kfugOF9pJH8Za4yFmw//s9cPXV8WwtZ2SKfVzn1unpKqf wmJ1PwJoom/d4fGvQDkgkGKRa6RGC6tPmXnqnx+YX4iCOdFfbP8L9rmk2sewDDVzHDU3I3ZZ 8hFIjMYM/QXXYszRatK0LCV0QPZuF7LCf4uQVKw1/oyJInsnH7+6a3c0h21x+CmSja9QJ+y0 yzgEN/nM89d6YTakfR+1xkYgodVmMy/bS8kmXbUUZG/CyeqCqc95RUySjKT2ECrf9GhhoQkl +D8n2MsrAUSMGB4GQSN+TIq9OBTpNuvATGSRuF9wnQcs1iSry+JNCpfRTyWp83uCNApe6oHU EET4Et6KDO3AvjvBMAX0TInTRGW2SQlJMuFKpc7Dg7tHK8zzqQARAQABtCNLYXJsIERlbm5p bmdlciA8a2FybEBkZW5uaW5nZXIubmV0PokCPAQTAQIAJgUCUhfXOwIbIwUJCWYBgAYLCQgH AwIEFQIIAwQWAgMBAh4BAheAAAoJEG6/sivc5s0PLxQP/i6x/QFx9G4Cw7C+LthhLXIm7NSH AtNbz2UjySEx2qkoQQjtsK6mcpEEaky4ky6t8gz0/SifIfJmSmyAx0UhUQ0WBv1vAXwtNrQQ jJd9Bj6l4c2083WaXyHPjt2u2Na6YFowyb4SaQb83hu/Zs25vkPQYJVVE0JX409MFVPUa6E3 zFbd1OTr3T4yNUy4gNeQZfzDqDS8slbIks2sXeoJrZ6qqXVI0ionoivOlaN4T6Q0UYyXtigj dQvvhMt0aNowKFjRqrmSDRpdz+o6yg7Mp7qEZ1V6EZk8KqQTH6htpCTQ8i79ttK4LG6bstSF Re6Fwq52nbrcANrcdmtZXqjo+SGbUqJ8b1ggrxAsJ5MEhRh2peKrCgI/TjQo+ZxfnqEoR4AI 46Cyiz+/lcVvlvmf2iPifS3EEdaH3Itfwt7MxFm6mQORYs6skHDw3tOYB2/AdCW6eRVYs2hB RMAG4uwApZfZDKgRoE95PJmQjeTBiGmRPcsQZtNESe7I7EjHtCDLwtJqvD4HkDDQwpzreT6W XkyIJ7ns7zDfA1E+AQhFR6rsTFGgQZRZKsVeov3SbhYKkCnVDCvb/PKQCAGkSZM9SvYG5Yax 8CMry3AefKktf9fqBFg8pWqtVxDwJr56dhi0GHXRu3jVI995rMGo1fLUG5fSxiZ8L5sAtokh 9WFmQpyl Message-ID: <701e011f-3088-8ed4-4fbb-6fa93ac698f5@denninger.net> Date: Tue, 9 Apr 2019 09:55:40 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <874l7fyrpr.fsf@news-spur.riddles.org.uk> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-512; boundary="------------ms060503020704080604070306" X-Rspamd-Queue-Id: 3C9B7699A7 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-6.50 / 15.00]; TO_DN_EQ_ADDR_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_DN_SOME(0.00)[]; HAS_ATTACHMENT(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; MX_GOOD(-0.01)[px.denninger.net]; NEURAL_HAM_SHORT(-0.93)[-0.931,0]; FROM_EQ_ENVFROM(0.00)[]; IP_SCORE(-2.38)[ip: (-9.88), ipnet: 104.236.64.0/18(-3.71), asn: 14061(1.77), country: US(-0.06)]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:14061, ipnet:104.236.64.0/18, country:US]; MIME_TRACE(0.00)[0:+,1:+,2:+]; MID_RHS_MATCH_FROM(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[197.57.1.68.zen.spamhaus.org : 127.0.0.11]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.985,0]; FROM_HAS_DN(0.00)[]; SIGNED_SMIME(-2.00)[]; RCPT_COUNT_THREE(0.00)[4]; MIME_GOOD(-0.20)[multipart/signed,multipart/alternative,text/plain]; DMARC_NA(0.00)[denninger.net]; AUTH_NA(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_TLS_LAST(0.00)[]; R_SPF_NA(0.00)[] X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Apr 2019 14:56:49 -0000 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 /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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