This is a USB modem, model U760 (a Sprint-branded MC760 from Novatel Wireless).
If this is a bug I'm happy to help resolve it, but I have no experience with the network manager code-base. On Thu, Oct 27, 2011 at 2:29 AM, Dan Williams <[email protected]> wrote: > On Mon, 2011-10-17 at 09:49 -0400, David Pfeffer 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. > > ALmost seems like the modem crashed and reset itself. What kind of > modem is this and what model? > > Dan > > > 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 > > _______________________________________________ > > networkmanager-list mailing list > > [email protected] > > http://mail.gnome.org/mailman/listinfo/networkmanager-list > > >
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