Bug#426440: /usr/sbin/pppd: sometimes connection with Option GlobeTrotter card hangs, ping: sendmsg: No buffer space available
On Sat, Jun 09, 2007 at 06:20:34AM +0200, Miernik wrote:
> On Tue, May 29, 2007 at 03:20:51PM +0200, Marc Haber wrote:
> > On Mon, May 28, 2007 at 10:09:04PM +0200, Miernik wrote:
> > > ping: sendmsg: No buffer space available
> >
> > I have this as well, with both my Option 3G Datacard, and a borrowed
> > Novatel 740. After killing the PPP connection, the virtual USB serial
> > port simulated by the card is not responsive any more, AT commands are
> > ignored.
>
> Marc, can you tell us several things:
>
> 1) Is at port responsive to AT commands before you kill the ppp
> connection, but after it hangs?
I don't know, since I need to kill the ppp connection to get access to
the serial port, needn't I?
> Mine is. After I kill the connection, I can just start a new
> connection, and it works, I don't have to unload usbserial, nor
> unplug the card. So things seem to be a bit different then in your
> case. What kernel and pppd version are you running?
I am usually running a fresh vanilla kernel and a rather current sid.
I moved into a new apartment without broadband and had to use UMTS
quite often since May 12 through June 5, when broadband was finally
installed. The issue was present during the entire period.
> 2) How often, after how much time of the connection running it usually
> happens?
Irregular intervals. Sometimes the connection is stable for hours,
sometimes it dies after a few minutes. I also doubt that it is
depending on traffic volume transported.
> I have now two Option cards running: one is like this:
>
> ATI
> Manufacturer: Option N.V.
> Model: GlobeTrotter Fusion
> Revision: 2.9.4 (Date: May 12 2005, Time: 10:55:21)
>
> (run "ATI" in minicom or picocom to see yours).
ATI
Manufacturer: Option Wireless Technology
Model: 129
Revision: 3.1.2 (Date: Mar 08 2004, Time: 11:54:30)
I used ser2net ;)
> and has the first two letters of the serial number "RC".
> See http://www.pharscape.org/content/view/40/53/
CL here. That link is a rather nice resource.
I have returned the novatel card to my company who was nice enough to
provide me with a SIM and PCMCIA card to use during my broadband-less
time.
> And this card uses usbserial. On this card it hangs very rarely, I have
> been able to run it 7 days without a hang. And recently I had it hang,
> but after I waited some hours it did unhang.
I never waited that long, when the connection hang, I only waited a
couple of minutes and then proceeded to reset.
> and currently I upgraded the firmware to:
>
> Revision: 3.19.0Hd (Date: May 31 2006, Time: 15:49:25)
Can I upgrade card firmware without Windows?
> The longest noted time I was able to run this card on Debian without a
> hang so far is:
>
> Connect time 1676.6 minutes. (that's 27h 56min 36s)
> Sent 2459600 bytes, received 17972064 bytes.
My personal record is 2219 minutes.
Greetings
Marc
--
-----------------------------------------------------------------------------
Marc Haber | "I don't trust Computers. They | Mailadresse im Header
Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834
Nordisch by Nature | How to make an American Quilt | Fax: *49 3221 2323190
Reply to: