Hi all, I sent this below email a few days ago but it doesn't seem to have made it to the list.
Would someone kindly be able to offer me some guidance? This is a pretty critical bug for me as a client of mine has been suffering from intermittent internet issues for about a week now. Thanks. On Mon, Oct 17, 2011 at 9:49 AM, David Pfeffer <da...@fivepmtechnology.com>wrote: > I maintain a persistent 3G connection on a remote device using network > manager. However, every so often, the link fails and then does not restart > itself. I managed to identify an occurrence of this in my syslog, but > honestly I'm not really sure what I'm looking at. It seems that the machine > thinks the device has been unplugged, but there's no corresponding log entry > for it actually being unplugged. > > Would someone mind looking at the below syslog snip and guiding me in the > right direction? > >> Oct 13 22:25:26 tracker pppd[1091]: LCP terminated by peer >> Oct 13 22:25:26 tracker pppd[1091]: Connect time 206.7 minutes. >> Oct 13 22:25:26 tracker pppd[1091]: Sent 203306 bytes, received 182777 bytes. >> Oct 13 22:25:26 tracker pppd[1091]: Modem hangup >> Oct 13 22:25:26 tracker pppd[1091]: Connection terminated. >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> (ttyUSB1): device state >> change: 8 -> 9 (reason 13) >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> Unmanaged Device found; >> state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) >> Oct 13 22:25:26 tracker NetworkManager[333]: <warn> Activation (ttyUSB1) >> failed. >> Oct 13 22:25:26 tracker modem-manager[337]: <info> (ttyUSB1) closing serial >> port... >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> (ttyUSB1): device state >> change: 9 -> 3 (reason 0) >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> (ttyUSB1): deactivating >> device (reason: 0). >> Oct 13 22:25:26 tracker kernel: [12441.840088] ata1.00: exception Emask 0x0 >> SAct 0x0 SErr 0x0 action 0x6 >> Oct 13 22:25:26 tracker kernel: [12441.846744] ata1.00: BMDMA stat 0x66 >> Oct 13 22:25:26 tracker kernel: [12441.850446] ata1.00: failed command: >> WRITE DMA >> Oct 13 22:25:26 tracker kernel: [12441.855020] ata1.00: cmd >> ca/00:02:c4:fb:5b/00:00:00:00:00/e0 tag 0 dma 1024 out >> Oct 13 22:25:26 tracker kernel: [12441.855024] res >> 51/84:00:c4:fb:5b/00:00:00:00:00/e0 Emask 0x30 (host bus error) >> Oct 13 22:25:26 tracker kernel: [12441.870623] ata1.00: status: { DRDY ERR } >> Oct 13 22:25:26 tracker kernel: [12441.874708] ata1.00: error: { ICRC ABRT } >> Oct 13 22:25:26 tracker kernel: [12441.878820] ata1: soft resetting link >> Oct 13 22:25:26 tracker modem-manager[337]: <info> (ttyUSB1) serial port >> closed >> Oct 13 22:25:26 tracker modem-manager[337]: <info> Modem >> /org/freedesktop/ModemManager/Modems/0: state changed (connected -> >> disconnecting) >> Oct 13 22:25:26 tracker modem-manager[337]: <info> Modem >> /org/freedesktop/ModemManager/Modems/0: state changed (disconnecting -> >> connected) >> Oct 13 22:25:26 tracker NetworkManager[333]: <warn> could not read ppp >> stats: No such device >> Oct 13 22:25:26 tracker pppd[1091]: Exit. >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> Unmanaged Device found; >> state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) >> Oct 13 22:25:26 tracker NetworkManager[333]: SCPlugin-Ifupdown: devices >> removed (path: /sys/devices/virtual/net/ppp0, iface: ppp0) >> Oct 13 22:25:26 tracker NetworkManager[333]: <info> disconnect failed: (32) >> The serial port is not open. >> Oct 13 22:25:27 tracker kernel: [12442.048218] ata1.00: configured for >> UDMA/100 >> Oct 13 22:25:27 tracker kernel: [12442.048241] ata1: EH complete >> Oct 13 22:25:27 tracker kernel: [12442.050941] ata1.00: exception Emask 0x0 >> SAct 0x0 SErr 0x0 action 0x6 >> Oct 13 22:25:27 tracker kernel: [12442.057483] ata1.00: BMDMA stat 0x66 >> Oct 13 22:25:27 tracker kernel: [12442.061153] ata1.00: failed command: >> WRITE DMA >> Oct 13 22:25:27 tracker kernel: [12442.065696] ata1.00: cmd >> ca/00:02:c4:fb:5b/00:00:00:00:00/e0 tag 0 dma 1024 out >> Oct 13 22:25:27 tracker kernel: [12442.065699] res >> 51/84:00:c4:fb:5b/00:00:00:00:00/e0 Emask 0x30 (host bus error) >> Oct 13 22:25:27 tracker kernel: [12442.081273] ata1.00: status: { DRDY ERR } >> Oct 13 22:25:27 tracker kernel: [12442.085366] ata1.00: error: { ICRC ABRT } >> Oct 13 22:25:27 tracker kernel: [12442.089488] ata1: soft resetting link >> Oct 13 22:25:27 tracker kernel: [12442.260206] ata1.00: configured for >> UDMA/100 >> Oct 13 22:25:27 tracker kernel: [12442.260226] ata1: EH complete >> Oct 13 22:25:27 tracker kernel: [12442.268296] ata1.00: exception Emask 0x0 >> SAct 0x0 SErr 0x0 action 0x6 >> Oct 13 22:25:27 tracker kernel: [12442.274829] ata1.00: BMDMA stat 0x66 >> Oct 13 22:25:27 tracker kernel: [12442.278480] ata1.00: failed command: >> WRITE DMA >> Oct 13 22:25:27 tracker kernel: [12442.283022] ata1.00: cmd >> ca/00:02:c4:fb:5b/00:00:00:00:00/e0 tag 0 dma 1024 out >> Oct 13 22:25:27 tracker kernel: [12442.283026] res >> 51/84:00:c4:fb:5b/00:00:00:00:00/e0 Emask 0x30 (host bus error) >> Oct 13 22:25:27 tracker kernel: [12442.298605] ata1.00: status: { DRDY ERR } >> Oct 13 22:25:27 tracker kernel: [12442.302693] ata1.00: error: { ICRC ABRT } >> Oct 13 22:25:27 tracker kernel: [12442.306763] ata1: soft resetting link >> Oct 13 22:25:27 tracker kernel: [12442.476225] ata1.00: configured for >> UDMA/100 >> Oct 13 22:25:27 tracker kernel: [12442.476248] ata1: EH complete >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> Activation (ttyUSB1) >> starting connection 'cdma' >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> (ttyUSB1): device state >> change: 3 -> 4 (reason 0) >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> Unmanaged Device found; >> state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> Activation (ttyUSB1) >> Stage 1 of 5 (Device Prepare) scheduled... >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> Activation (ttyUSB1) >> Stage 1 of 5 (Device Prepare) started... >> Oct 13 22:25:29 tracker NetworkManager[333]: <info> Activation (ttyUSB1) >> Stage 1 of 5 (Device Prepare) complete. >> Oct 13 22:25:30 tracker modem-manager[337]: <info> Modem >> /org/freedesktop/ModemManager/Modems/0: state changed (connected -> >> registered) >> Oct 13 22:25:30 tracker modem-manager[337]: <info> Modem >> /org/freedesktop/ModemManager/Modems/0: state changed (registered -> >> connecting) >> Oct 13 22:25:30 tracker modem-manager[337]: <info> Modem >> /org/freedesktop/ModemManager/Modems/0: state changed (connecting -> >> registered) >> Oct 13 22:25:30 tracker NetworkManager[333]: <warn> CDMA connection failed: >> (32) Sending command failed: device is not enabled >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> (ttyUSB1): device state >> change: 4 -> 9 (reason 0) >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> Unmanaged Device found; >> state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> Marking connection >> 'cdma' invalid. >> Oct 13 22:25:30 tracker NetworkManager[333]: <warn> Activation (ttyUSB1) >> failed. >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> (ttyUSB1): device state >> change: 9 -> 3 (reason 0) >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> (ttyUSB1): deactivating >> device (reason: 0). >> Oct 13 22:25:30 tracker NetworkManager[333]: <info> Unmanaged Device found; >> state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) >> >> > I posted this question on askubuntu.com with little result: > > http://askubuntu.com/questions/66470/persistant-3g-connection-w-network-manager-fails >
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