Date: Fri, 28 Jul 2017 13:22:41 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-net@freebsd.org Subject: Re: Enable 802.11 debug at boot Message-ID: <7e2635c5-1811-2e6b-50ce-b981271ae9d3@denninger.net> In-Reply-To: <CAN6yY1vGgQjiVsm1MN7b_hPwLfONnKtrMQBK1JAi7eesNd_HJQ@mail.gmail.com> References: <CAN6yY1vGgQjiVsm1MN7b_hPwLfONnKtrMQBK1JAi7eesNd_HJQ@mail.gmail.com>
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This is a cryptographically signed message in MIME format. --------------ms010701040107010606030308 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 7/28/2017 13:11, Kevin Oberman wrote: > I am having evere issues with bringing up my network card. I had previo= usly > had this and a patch to a locking issued mostly fixed it. (It still pop= ped > up now and ten, but moved from "problem" to "annoyance".) Now it is aga= in a > problem. > > System is a Lenovo T520 ThinkPad running 1-STABLE with an Intel WiFi ca= rd: > iwn0@pci0:3:0:0: class=3D0x028000 card=3D0x13118086 chip=3D0x008= 58086 > rev=3D0x34$ > vendor =3D 'Intel Corporation' > device =3D 'Centrino Advanced-N 6205 [Taylor Peak]' > class =3D network > > When the card is brought up at boot time, it has a very hard time getti= ng a > connection. It could take over a minute to connect, but the system kept= > reporting that the card had transitioned from DOWN to UP and DHCP would= > fire up. After one or two cases of the card showing hung and a firmware= > reload, it would make a connection and things would be fine. > > Since about hte start of the 11.1 release cycle, it has gotten much wor= se > and some really odd behavior has appeared. It often seems to fail to sc= an > properly and connects to a neighbor's Xfinity (Comcast) service (very w= eak > signal and low priority in the wpa_supplicant config file) instead of m= y > AP. If I run "ifconfig wlan0 list scan", I don't even see my AP. If I > restart, I go through the same connection dance and my eventually conne= ct > to my AP. A "list scan" usually does not show any Xfinity SSID. Weird. > > It now get really weird. I try to re-scan for APs with "ifconig wlan0 > scan". It used to take a few seconds to scan before reporting the list = of > APs, but now comes back instantly, always with an identical list of APs= =2E It > never changes. It looks like scan is a no-op. Waiting for background s= can > to run also never seems to show any change in the list of available APs= =2E > Not even slight changes is S/N ratio. > > My kernel has IWN_DEBUG and IEEE80211_DEBUG, but I am not sure how to g= et > debug enabled at boot. sysctl.conf takes care of dev.iwn.0.debug, but I= 'm > not sure how to do "wlandebug +assoc +auth +state +rate" at boot. Do I = need > to write a little rc.d script to run after /usr is mounted and before t= he > network starts? Of is there a better way? > > Thanks! I am seeing the same behavior with an X220 Thinkpad with (what I believe is) the same Centrino (a/b/g capable) WiFi card. It works /most of the time /eventually, but often will cycle two or three times before it finally comes up. I did not see the problem with 11.0, but with 11.1-RELEASE it is a definite issue. --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms010701040107010606030308 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 BlwwggZYMIIEQKADAgECAgE9MA0GCSqGSIb3DQEBCwUAMIGQMQswCQYDVQQGEwJVUzEQMA4G A1UECBMHRmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3Rl bXMgTExDMRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhND dWRhIFN5c3RlbXMgTExDIENBMB4XDTE2MTIxODE5NDUzNVoXDTIxMTIxNzE5NDUzNVowVzEL MAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExGTAXBgNVBAoTEEN1ZGEgU3lzdGVtcyBM TEMxGzAZBgNVBAMUEmthcmxAZGVubmluZ2VyLm5ldDCCAiIwDQYJKoZIhvcNAQEBBQADggIP ADCCAgoCggIBAM2N5maxs7NkoY9g5NMxFWll0TYiO7gXrGZTo3q25ZJgNdPMwrntLz/5ewE9 07TEbwJ3ah/Ep9BfZm7JF9vTtE1HkgKtXNKi0pawNGm1Yn26Dz5AbUr1byby6dFtDJr14E07 trzDCtRRvTkOVSBj6PQPal0fAnDtkIYQBVcuMkXkuMCtyfE95pjm8g4K9l7lAcKii3T1/3rE hCc1o2nBnb7EN1/XwBeCDGB+I2SN/ftZDbKQqGAF5q9dUn+iXU7Z/CVSfUWmhVh6cVZA4Ftv TglUqj410OuPx+cUQch3h1kFgsuhQR63HiJc3HbRJllHsV0rihvL1CjeARQkhnA6uY9NLFST p5I/PfzBzW2MSmtN/tGZvmfKKnmtbfUNgkzbIR1K3lsum+yEL71kB93Xtz/4f1demEx5c8TJ RBIniDHjDeLGK1aoBu8nfnvXAvgthFNTWBOEoR49AHEPjC3kZj0l8JQml1Y8bTQD5gtC5txl klO60WV0EufU7Hy9CmynMuFtjiA2v71pm097rXeCdrAKgisdYeEESB+SFrlY65rLiLv4n8o1 PX7DqRfqKkOYIakZ0ug/yHVKcq2EM3RiJxwzls5gT70CoOBlKbrC98O8TA6teON0Jq30M06t NTI2HhvNbJDLbBH+Awf4h1UKB+0ufENwjVvF5Jfz8Ww/FaSDAgMBAAGjgfQwgfEwNwYIKwYB BQUHAQEEKzApMCcGCCsGAQUFBzABhhtodHRwOi8vY3VkYXN5c3RlbXMubmV0Ojg4ODgwCQYD VR0TBAIwADARBglghkgBhvhCAQEEBAMCBaAwCwYDVR0PBAQDAgXgMCwGCWCGSAGG+EIBDQQf Fh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQUpfAI3y+751pp9A0w 6vJHx8RoR/MwHwYDVR0jBBgwFoAUJHGbnYV9/N3dvbDKkpQDofrTbTUwHQYDVR0RBBYwFIES a2FybEBkZW5uaW5nZXIubmV0MA0GCSqGSIb3DQEBCwUAA4ICAQBiB6MlugxYJdccD8boZ/u8 d8VxmLkJCtbfyYHRjYdyoABLW5hE3k3xSpYCM9L7vzWyV/UWwDYKi4ZzxHo4g+jG/GQZfKhx v38BQjL2G9xD0Hn2d+cygOq3UPjVYlbbfQoew6JbyCFXrrZ7/0jvRMLAN2+bRC7ynaFUixPH Whnj9JSH7ieYdzak8KN+G2coIC2t2iyfXVKehzi5gdNQ0vJ7+ypbGsRm4gE8Mdo9N/WgFPvZ HPFqR9Dwas7Z+aHwOabpk5r/336SyjOaZsn3MqKJQZL6GqDKusVOCWt+9uFAD8kadg7FetZe atIoD9I+zbp59oVoMnkMDMx7Hi85faU03csusqMGsjSsAzWSI1N8PJytZlchLiykokLKc3OL G87QKlErotlou7cfPX2BbEAH5wmkj9oiqZhxIL/wwAUA+PkiTbEmksKBNompSjUq/6UsR8EA s74gnu17lmijv8mrg2qMlwRirE7qG8pnE8egLtCDxcjd0Of9WMi2NJskn0/ovC7P+J60Napl m3ZIgPJst1piYSE0Zc1FIat4fFphMfK5v4iLblo1tFSlkdx1UNDGdg/U+LaXkNVXlMp8fyPm R80V6cIrCAlEWnBJNxG1UyfbbsvNMCCZBM4faGGsR/hhQOiydlruxhjL6P8J2WV8p11DdeGx KymWoil2s1J5WTGCBRMwggUPAgEBMIGWMIGQMQswCQYDVQQGEwJVUzEQMA4GA1UECBMHRmxv cmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3RlbXMgTExDMRww GgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhNDdWRhIFN5c3Rl bXMgTExDIENBAgE9MA0GCWCGSAFlAwQCAwUAoIICTTAYBgkqhkiG9w0BCQMxCwYJKoZIhvcN AQcBMBwGCSqGSIb3DQEJBTEPFw0xNzA3MjgxODIyNDFaME8GCSqGSIb3DQEJBDFCBEDsaXII rEvgJfo9ILqQOJpPw88YjlMj1A+Ut8+64I562BRqpF/lTx6p4xirtdX3qsniS7FGfGg80L5X AxJW38WrMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsGCWCGSAFlAwQBAjAKBggq hkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcwDQYIKoZI hvcNAwICASgwgacGCSsGAQQBgjcQBDGBmTCBljCBkDELMAkGA1UEBhMCVVMxEDAOBgNVBAgT B0Zsb3JpZGExEjAQBgNVBAcTCU5pY2V2aWxsZTEZMBcGA1UEChMQQ3VkYSBTeXN0ZW1zIExM QzEcMBoGA1UEAxMTQ3VkYSBTeXN0ZW1zIExMQyBDQTEiMCAGCSqGSIb3DQEJARYTQ3VkYSBT eXN0ZW1zIExMQyBDQQIBPTCBqQYLKoZIhvcNAQkQAgsxgZmggZYwgZAxCzAJBgNVBAYTAlVT MRAwDgYDVQQIEwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoTEEN1ZGEg U3lzdGVtcyBMTEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExIjAgBgkqhkiG9w0B CQEWE0N1ZGEgU3lzdGVtcyBMTEMgQ0ECAT0wDQYJKoZIhvcNAQEBBQAEggIAVNXmTfUCF4+W nhLqQg3CujS6lGzM1IanoJNZ3XweIHE6Dc8zknEUnbBjITW+a+uy2mGqUG88JyHauuvhAFlp EzBe5VkVeaa2TR/lVyMnpO2QHulU0KfrdCIHaFFNp3tMp6qa01w/MFmoaWeEZYgj0LczYNJG 9WKT/9PUUxju9J7my24k2iF48qpD41JFEO4r4fhreTCAkp0OM/7ozTvWQYTOege73xBgsrXY is+V9GFZuuaX90LOoI5lRH2LsQAzG/4nDCuG9XuXM21Nugd5KBphJVM45nlqqKSIdNlLs34p o9D2Je+E38/lWhO2kQUhSBHVp7gu/n+RRVOz5wV+H+9nOmL2kgtHrCpu/pMKZt2Ul4xBIppJ 8w2VRvyYEcKVnKJsL91c0lbpcMzXoCwC42CCiTTiiDfgbfTNa7Fl5WJOGDq3JsRsKKvISjUX 730ucGX9AEKguN3L/mW8QhfO+H+5Bbhq4IGwj04HBpOhW0qWA/3Wch9zVOxUY8mrHKkkL3HS PGDEuJAcrP8ewcFRL/UDcRm2fVHrPCL75wWOSYk/wOWSPsvtNpMRxe2ke+mciebsguJYRj2U UBLe0em7GrEwvGuI34Bx3RzAYcJZ1/RPdRdW+wM8m6uhoY63qaXj4oaTLT5qAetf+mnF8dPm lS0qVip8gfgWkjsBiuRQZz4AAAAAAAA= --------------ms010701040107010606030308--
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