Running model B, Linux raspberrypi 3.10.25+ #622 PREEMPT Fri Jan 3
18:41:00 GMT 2014 armv6l GNU/Linux. Headless, Wifi connection, using wicd (due to reliability problems with network-manager). Rebuilt from scratch using NOOBS a week ago due to a MUNGed apt-get update on previous installation - long story.Using package wview to collect and publish weather. Every minute, it does an ssh to my web hosting company to update files of changed weather conditions. I know that the connection is lost when I check my web site and the pages have not been updated for long periods. Early this morning, it had been an hour. I was unable to ssh into the Raspi. I had to power-cycle to get everything working again.
This has happened several times over the last week. I thought I had solved it by moving the powered USB Hub/Wifi dongle further from the Raspi. It ran for 2 days before failing again.
Following is what I collected from the logs. The "bad checksum" are all on my DNS entries. They seem suspicious, but they might just be a sympton rather than a cause. Any help would be greatly appreciated. JimR
debug Mar 15 01:17:27 raspberrypi kernel: [213216.734642] UDP: bad checksum. From 4.2.2.2:53 to 192.168.1.115:49383 ulen 120 Mar 15 01:17:36 raspberrypi kernel: [213225.950854] UDP: bad checksum. From 4.2.2.2:53 to 192.168.1.115:49383 ulen 120 Mar 15 01:17:50 raspberrypi kernel: [213239.775166] UDP: bad checksum. From 8.8.8.8:53 to 192.168.1.115:52826 ulen 51 Mar 15 01:17:55 raspberrypi kernel: [213245.100080] UDP: bad checksum. From 4.2.2.2:53 to 192.168.1.115:36986 ulen 103 Mar 15 01:26:03 raspberrypi kernel: [213733.048211] UDP: bad checksum. From 8.8.4.4:53 to 192.168.1.115:32881 ulen 118 Mar 15 01:27:57 raspberrypi kernel: [213847.124662] UDP: bad checksum. From 4.2.2.2:53 to 192.168.1.115:44899 ulen 120
syslog same
daemon.log Mar 15 01:17:18 raspberrypi ntpd[2070]: ntpd 4.2.6p5@1.2349-o Fri May 18
20:30:57 UTC 2012 (1) Mar 15 01:17:18 raspberrypi ntpd[2071]: proto: precision = 1.000 usec Mar 15 01:17:18 raspberrypi ntpd[2071]: Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123 Mar 15 01:17:18 raspberrypi ntpd[2071]: Listen normally on 1 lo 127.0.0.1 UDP 123 Mar 15 01:17:18 raspberrypi ntpd[2071]: peers refreshed Mar 15 01:17:18 raspberrypi ntpd[2071]: Listening on routing socket on fd #18 for interface updates Mar 15 01:17:18 raspberrypi ntpd[2071]: restrict: error in address '::' on line 38. Ignoring... Mar 15 01:17:18 raspberrypi ntpd[2071]: restrict: error in address '::1' on line 42. Ignoring... Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 0.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 1.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 2.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 3.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2078]: signal_no_reset: signal 17 had flags 4000000 Mar 15 01:17:24 raspberrypi dhclient: isc-dhclient-4.2.2 Mar 15 01:17:25 raspberrypi dhclient: isc-dhclient-4.2.2 Mar 15 01:17:36 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2 Mar 15 01:17:36 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium. Mar 15 01:17:36 raspberrypi dhclient: All rights reserved. Mar 15 01:17:36 raspberrypi dhclient: For info, please visit-> 199.102.46.73 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 1.debian.pool.ntp.org
-> 199.7.177.206 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 2.debian.pool.ntp.org
-> 198.199.100.18 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 3.debian.pool.ntp.org
-> 199.102.46.72
messages Mar 15 01:17:18 raspberrypi ntpd[2070]: ntpd 4.2.6p5@1.2349-o Fri May 18
20:30:57 UTC 2012 (1) Mar 15 01:17:18 raspberrypi ntpd[2071]: proto: precision = 1.000 usec Mar 15 01:17:18 raspberrypi ntpd[2071]: Listen and drop on 0 v4wildcard 0.0.0.0 UDP 123 Mar 15 01:17:18 raspberrypi ntpd[2071]: Listen normally on 1 lo 127.0.0.1 UDP 123 Mar 15 01:17:18 raspberrypi ntpd[2071]: peers refreshed Mar 15 01:17:18 raspberrypi ntpd[2071]: Listening on routing socket on fd #18 for interface updates Mar 15 01:17:18 raspberrypi ntpd[2071]: restrict: error in address '::' on line 38. Ignoring... Mar 15 01:17:18 raspberrypi ntpd[2071]: restrict: error in address '::1' on line 42. Ignoring... Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 0.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 1.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 2.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2071]: Deferring DNS for 3.debian.pool.ntp.org 1 Mar 15 01:17:19 raspberrypi ntpd[2078]: signal_no_reset: signal 17 had flags 4000000 Mar 15 01:17:24 raspberrypi dhclient: isc-dhclient-4.2.2 Mar 15 01:17:25 raspberrypi dhclient: isc-dhclient-4.2.2 Mar 15 01:17:36 raspberrypi dhclient: Internet Systems Consortium DHCP Client 4.2.2 Mar 15 01:17:36 raspberrypi dhclient: Copyright 2004-2011 Internet Systems Consortium. Mar 15 01:17:36 raspberrypi dhclient: All rights reserved. Mar 15 01:17:36 raspberrypi dhclient: For info, please visit-> 199.102.46.73 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 1.debian.pool.ntp.org
-> 199.7.177.206 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 2.debian.pool.ntp.org
-> 198.199.100.18 Mar 15 01:18:01 raspberrypi ntpd_intres[2078]: DNS 3.debian.pool.ntp.org
-> 199.102.46.72