Date: Mon, 11 Jul 2016 11:15:12 -0500 From: Karl Denninger <karl@denninger.net> To: "freebsd-arm@freebsd.org" <freebsd-arm@freebsd.org> Subject: Old problem still present on 11-ALPHA1 - Pi2 Message-ID: <32ad8bb3-f0a6-c86b-1b23-aae9af4442ea@denninger.net>
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This is a cryptographically signed message in MIME format. --------------ms090008050603000701070102 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable I have two PI2s on the same switch here doing quite-different things. One never shows network problems. The other one does this: =2E... ukphy0: none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto ue0: <USB Ethernet> on smsc0 ue0: Ethernet address: b8:27:eb:08:12:1c ugen0.4: <Inateck> at usbus0 umass0: <Inateck product 0x5136, class 0/0, rev 2.10/0.01, addr 4> on usb= us0 umass0: SCSI over Bulk-Only; quirks =3D 0x0100 umass0:0:0: Attached to scbus0 da0 at umass-sim0 bus 0 scbus0 target 0 lun 0 da0: <Inateck 0> Fixed Direct Access SPC-4 SCSI device da0: Serial Number 00000000000000000000 da0: 40.000MB/s transfers da0: 476940MB (976773168 512 byte sectors) da0: quirks=3D0x2<NO_6_BYTE> random: unblocking device. smsc0: chip 0xec00, rev. 0002 ue0: link state changed to DOWN ue0: link state changed to UP ue0.2: link state changed to UP ue0.3: link state changed to UP ue0: link state changed to DOWN ue0.2: link state changed to DOWN ue0.3: link state changed to DOWN ue0: link state changed to UP ue0.2: link state changed to UP ue0.3: link state changed to UP ue0: link state changed to DOWN ue0.2: link state changed to DOWN ue0.3: link state changed to DOWN ue0: link state changed to UP ue0.2: link state changed to UP ue0.3: link state changed to UP ue0: link state changed to DOWN ue0.2: link state changed to DOWN ue0.3: link state changed to DOWN ue0: link state changed to UP ue0.2: link state changed to UP ue0.3: link state changed to UP Every now and then (every hour or so) the interface flaps. If I plug a USB interface in and use two network cords I *still* get the flapping.=20 This unit has very low (but non-zero) traffic on the network, while the other actually has *more* traffic on the network yet is completely stable. Since both are plugged into the same physical switch I doubt the switch itself or its firmware is involved in this. The only difference I can see is that the one that flaps is using vlans. Specifically, that machine is the network's dhcp server, and it is on three different vlans (untagged and two tagged) so it can provide addresses (and DNS services via unbound) to those VLAN interfaces. This appears to be somehow linked to the ue interface driver, because another machine (Intel based) that is also on multiple vLANs via the em driver does *not* flap. I don't know if this is actually arm related or not; it might not be if Intel machines also use the "ue" driver, but it's very consistent on the PI2 if I want to use vlan tags whether I have one or two interfaces (the second via a USB adapter of course) in use or not. Other than the flapping the box appears to run fine; the flaps do, however, sometimes stop reporting from the snmpd daemon so I have had to stick a cron job out there to restart that on a schedule to prevent it from interrupting reporting to my traffic management tools. Whether the two are related is not known with certainty (but I suspect it is.) --=20 Karl Denninger karl@denninger.net <mailto:karl@denninger.net> /The Market Ticker/ /[S/MIME encrypted email preferred]/ --------------ms090008050603000701070102 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 Bl8wggZbMIIEQ6ADAgECAgEpMA0GCSqGSIb3DQEBCwUAMIGQMQswCQYDVQQGEwJVUzEQMA4G A1UECBMHRmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3Rl bXMgTExDMRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhND dWRhIFN5c3RlbXMgTExDIENBMB4XDTE1MDQyMTAyMjE1OVoXDTIwMDQxOTAyMjE1OVowWjEL MAkGA1UEBhMCVVMxEDAOBgNVBAgTB0Zsb3JpZGExGTAXBgNVBAoTEEN1ZGEgU3lzdGVtcyBM TEMxHjAcBgNVBAMTFUthcmwgRGVubmluZ2VyIChPQ1NQKTCCAiIwDQYJKoZIhvcNAQEBBQAD ggIPADCCAgoCggIBALmEWPhAdphrWd4K5VTvE5pxL3blRQPyGF3ApjUjgtavqU1Y8pbI3Byg XDj2/Uz9Si8XVj/kNbKEjkRh5SsNvx3Fc0oQ1uVjyCq7zC/kctF7yLzQbvWnU4grAPZ3IuAp 3/fFxIVaXpxEdKmyZAVDhk9az+IgHH43rdJRIMzxJ5vqQMb+n2EjadVqiGPbtG9aZEImlq7f IYDTnKyToi23PAnkPwwT+q1IkI2DTvf2jzWrhLR5DTX0fUYC0nxlHWbjgpiapyJWtR7K2YQO aevQb/3vN9gSojT2h+cBem7QIj6U69rEYcEDvPyCMXEV9VcXdcmW42LSRsPvZcBHFkWAJqMZ Myiz4kumaP+s+cIDaXitR/szoqDKGSHM4CPAZV9Yh8asvxQL5uDxz5wvLPgS5yS8K/o7zDR5 vNkMCyfYQuR6PAJxVOk5Arqvj9lfP3JSVapwbr01CoWDBkpuJlKfpQIEeC/pcCBKknllbMYq yHBO2TipLyO5Ocd1nhN/nOsO+C+j31lQHfOMRZaPQykXVPWG5BbhWT7ttX4vy5hOW6yJgeT/ o3apynlp1cEavkQRS8uJHoQszF6KIrQMID/JfySWvVQ4ksnfzwB2lRomrdrwnQ4eG/HBS+0l eozwOJNDIBlAP+hLe8A5oWZgooIIK/SulUAsfI6Sgd8dTZTTYmlhAgMBAAGjgfQwgfEwNwYI KwYBBQUHAQEEKzApMCcGCCsGAQUFBzABhhtodHRwOi8vY3VkYXN5c3RlbXMubmV0Ojg4ODgw CQYDVR0TBAIwADARBglghkgBhvhCAQEEBAMCBaAwCwYDVR0PBAQDAgXgMCwGCWCGSAGG+EIB DQQfFh1PcGVuU1NMIEdlbmVyYXRlZCBDZXJ0aWZpY2F0ZTAdBgNVHQ4EFgQUxRyULenJaFwX RtT79aNmIB/u5VkwHwYDVR0jBBgwFoAUJHGbnYV9/N3dvbDKkpQDofrTbTUwHQYDVR0RBBYw FIESa2FybEBkZW5uaW5nZXIubmV0MA0GCSqGSIb3DQEBCwUAA4ICAQBPf3cYtmKowmGIYsm6 eBinJu7QVWvxi1vqnBz3KE+HapqoIZS8/PolB/hwiY0UAE1RsjBJ7yEjihVRwummSBvkoOyf G30uPn4yg4vbJkR9lTz8d21fPshWETa6DBh2jx2Qf13LZpr3Pj2fTtlu6xMYKzg7cSDgd2bO sJGH/rcvva9Spkx5Vfq0RyOrYph9boshRN3D4tbWgBAcX9POdXCVfJONDxhfBuPHsJ6vEmPb An+XL5Yl26XYFPiODQ+Qbk44Ot1kt9s7oS3dVUrh92Qv0G3J3DF+Vt6C15nED+f+bk4gScu+ JHT7RjEmfa18GT8DcT//D1zEke1Ymhb41JH+GyZchDRWtjxsS5OBFMzrju7d264zJUFtX7iJ 3xvpKN7VcZKNtB6dLShj3v/XDsQVQWXmR/1YKWZ93C3LpRs2Y5nYdn6gEOpL/WfQFThtfnat HNc7fNs5vjotaYpBl5H8+VCautKbGOs219uQbhGZLYTv6okuKcY8W+4EJEtK0xB08vqr9Jd0 FS9MGjQE++GWo+5eQxFt6nUENHbVYnsr6bYPQsZH0CRNycgTG9MwY/UIXOf4W034UpR82TBG 1LiMsYfb8ahQJhs3wdf1nzipIjRwoZKT1vGXh/cj3gwSr64GfenURBxaFZA5O1acOZUjPrRT n3ci4McYW/0WVVA3lDGCBRMwggUPAgEBMIGWMIGQMQswCQYDVQQGEwJVUzEQMA4GA1UECBMH RmxvcmlkYTESMBAGA1UEBxMJTmljZXZpbGxlMRkwFwYDVQQKExBDdWRhIFN5c3RlbXMgTExD MRwwGgYDVQQDExNDdWRhIFN5c3RlbXMgTExDIENBMSIwIAYJKoZIhvcNAQkBFhNDdWRhIFN5 c3RlbXMgTExDIENBAgEpMA0GCWCGSAFlAwQCAwUAoIICTTAYBgkqhkiG9w0BCQMxCwYJKoZI hvcNAQcBMBwGCSqGSIb3DQEJBTEPFw0xNjA3MTExNjE1MTJaME8GCSqGSIb3DQEJBDFCBEDp kYQzhfi5vCU7sLHNJatSHY0FE/uR8eKqUmYk403zgkaRArqyMbt/Bj+HhPuGKF67KE4sF01Z Xp/xFluzjaesMGwGCSqGSIb3DQEJDzFfMF0wCwYJYIZIAWUDBAEqMAsGCWCGSAFlAwQBAjAK BggqhkiG9w0DBzAOBggqhkiG9w0DAgICAIAwDQYIKoZIhvcNAwICAUAwBwYFKw4DAgcwDQYI KoZIhvcNAwICASgwgacGCSsGAQQBgjcQBDGBmTCBljCBkDELMAkGA1UEBhMCVVMxEDAOBgNV BAgTB0Zsb3JpZGExEjAQBgNVBAcTCU5pY2V2aWxsZTEZMBcGA1UEChMQQ3VkYSBTeXN0ZW1z IExMQzEcMBoGA1UEAxMTQ3VkYSBTeXN0ZW1zIExMQyBDQTEiMCAGCSqGSIb3DQEJARYTQ3Vk YSBTeXN0ZW1zIExMQyBDQQIBKTCBqQYLKoZIhvcNAQkQAgsxgZmggZYwgZAxCzAJBgNVBAYT AlVTMRAwDgYDVQQIEwdGbG9yaWRhMRIwEAYDVQQHEwlOaWNldmlsbGUxGTAXBgNVBAoTEEN1 ZGEgU3lzdGVtcyBMTEMxHDAaBgNVBAMTE0N1ZGEgU3lzdGVtcyBMTEMgQ0ExIjAgBgkqhkiG 9w0BCQEWE0N1ZGEgU3lzdGVtcyBMTEMgQ0ECASkwDQYJKoZIhvcNAQEBBQAEggIATZiLjpRC h34dYjsofrnoSKsnmT+gx1+RTY6WluaeEjrJjI4kxpQU4pwyxj3h9Ut8Ymvu/CRC4OpwmAk0 llPs60mk9a+8qLoKdC+nEq9Ctk+JNdp5uQSuHIuIxMdqrp/WuHQy6tL9f9nCvSnYCZwgk0pJ a+rZE0cPJguvijWvuDHcXr+Vro2F/6K/pTtZ0BbTsG2fNEjZDQEkgT2MXskvQYnjtb6CDhjo QnopMEI6b/iyhBcpRF1O9Te45T3rDmJuajR8wdXx/FoWMiBEObOrmwpk+64phEdshZS3Eonj r5MDBdLSfpFzLv0p8Vx26p0VlSJ3VZL43L7S7Z0fLwwdO2IkJSuLDI3MRuG1V5hkMESKil3C UWYwh66/khQXLs9pgQoES3xOyMHQvVYRqbU6txaG3TZQZs0B6pgA8I31D8dA5Iqb14EwPsE0 gsoRE3cQupD1aTuYj1YFLSf+cfn7r745sKWwtyn0R+FUr8/uSgm1RIJ+ARrp3RT58+Xfl0JL jvNkeT4pWP9UZffHLuotkXCdmUIXNDf2mJAa/EX/RuJlrg8tGAo6Ajkgg8p/PUZ8lhWE3EU3 UTcrjtzFQfd7itao3UBpB0KkQ8webIKrxHRJ+z0eu7XBQShN2hYLEs7u29QhMV1YuZozvlhc S9PGeiClOuQ6+81PrKsTfuPcv3gAAAAAAAA= --------------ms090008050603000701070102--
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