Re: Continues drops on 3G

[Dan Williams <dcbw redhat com>]

On Sun, 2010-01-31 at 23:51 +0100, Jonathan Petersson wrote:
> Hi all,
> 
> Throughout the last 24 hours I've started getting quite frequent drops
> on my 3G connection, talking to the provider they don't have any known
> issues.

It looks like your modem is actually crashing and rebooting itself.
Note how it appears to drop off the bus completely, and then have to get
re-probed and initialized.

1) what specific Huawei modem is this?
2) what firmware version is the modem running?  Older Huawei firmwares
are known to be problematic; you may want to check and see if there's an
update for your device through your provider and apply it.

Dan


> Here's the logs from network-manager and modem-manager:
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  (ppp0):
> writing resolv.conf to /sbin/resolvconf
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> device state change: 7 -> 8 (reason 0)
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  (ppp0):
> writing resolv.conf to /sbin/resolvconf
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  Policy set
> 'Telenor Mobilt bredband 1' (ppp0) as default for routing and DNS.
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  Activation
> (ttyUSB2) successful, device activated.
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: <info>  Activation
> (ttyUSB2) Stage 5 of 5 (IP Configure Commit) complete.
> Jan 31 23:40:10 jpetersson2-desktop nm-dispatcher.action: Tried to set
> deprecated property gsm/band
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: Tried to set
> deprecated property gsm/band
> Jan 31 23:40:10 jpetersson2-desktop NetworkManager: Tried to set
> deprecated property gsm/band
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: Removed modem
> /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: (ttyUSB2) closing
> serial device...
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> now unmanaged
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> device state change: 8 -> 1 (reason 36)
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> deactivating device (reason: 36).
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ppp0):
> removing resolv.conf from /sbin/resolvconf
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> cleaning up...
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> taking down device.
> Jan 31 23:41:42 jpetersson2-desktop NetworkManager:
> SCPlugin-Ifupdown: devices removed (path:
> /sys/devices/virtual/net/ppp0, iface: ppp0)
> Jan 31 23:41:42 jpetersson2-desktop nm-dispatcher.action: Tried to set
> deprecated property gsm/band
> Jan 31 23:41:42 jpetersson2-desktop nm-dispatcher.action: Error in
> get_property: Method "Get" with signature "ss" on interface
> "org.freedesktop.DBus.Properties" doesn't exist#012
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: (Huawei): (ttyUSB0)
> deferring support check
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: (ttyUSB2) opening
> serial device...
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: (ttyUSB2): probe
> requested by plugin 'Huawei'
> Jan 31 23:41:42 jpetersson2-desktop modem-manager: (Huawei): (ttyUSB1)
> deferring support check
> Jan 31 23:41:44 jpetersson2-desktop NetworkManager: <debug>
> [1264977704.002147] ensure_killed(): waiting for ppp pid 4706 to exit
> Jan 31 23:41:44 jpetersson2-desktop NetworkManager: <debug>
> [1264977704.002313] ensure_killed(): ppp pid 4706 cleaned up
> Jan 31 23:41:44 jpetersson2-desktop modem-manager: Got failure code 3:
> No carrier
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB2) closing
> serial device...
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (Huawei): GSM modem
> /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5 claimed port ttyUSB2
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: Added modem
> /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: Exported modem
> /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5 as
> /org/freedesktop/ModemManager/Modems/5
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> new GSM device (driver: 'option1')
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> exported as /org/freedesktop/NetworkManager/Devices/6
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> now managed
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> device state change: 1 -> 2 (reason 2)
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> deactivating device (reason: 2).
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: flush_routes:
> assertion `iface_idx >= 0' failed
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: flush_addresses:
> assertion `iface_idx >= 0' failed
> Jan 31 23:41:45 jpetersson2-desktop NetworkManager: <info>  (ttyUSB2):
> device state change: 2 -> 3 (reason 0)
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB0):
> re-checking support...
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB0) opening
> serial device...
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB0) closing
> serial device...
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (Huawei): GSM modem
> /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-5 claimed port ttyUSB0
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB1):
> re-checking support...
> Jan 31 23:41:45 jpetersson2-desktop modem-manager: (ttyUSB1) opening
> serial device...
> Jan 31 23:41:50 jpetersson2-desktop modem-manager: (ttyUSB1) closing
> serial device...
> Jan 31 23:41:50 jpetersson2-desktop modem-manager: (ttyUSB1) opening
> serial device...
> Jan 31 23:41:50 jpetersson2-desktop modem-manager: (ttyUSB1): probe
> requested by plugin 'Generic'
> Jan 31 23:42:01 jpetersson2-desktop modem-manager: (ttyUSB1) closing
> serial device...
> 
> Please advice on cause and fix.
> 
> Thanks
> 
> /Jonathan
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