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? 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? 2) How often, after how much time of the connection running it usually happens? 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). and has the first two letters of the serial number "RC". See http://www.pharscape.org/content/view/40/53/ 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. The problem is mostly visible in my second card GT Max which is: ATI Manufacturer: Option N.V. Model: GlobeTrotter 3G+ Revision: 3.15.0Hd (Date: Feb 06 2006, Time: 12:53:15) and currently I upgraded the firmware to: Revision: 3.19.0Hd (Date: May 31 2006, Time: 15:49:25) but it didn't change anything in this matter. 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. http://www.pharscape.org/component/option,com_forum/Itemid,68/page,viewtopic/t,26/ Here someone reports that on Fedora FC4 this works OK. I was somehow unable to install FC4, maybe I'll try that again, but I installed Fedora version 7 on this machine, and it did run quite long without a hang, but still after 29h 15min 12s it did hang in the same way. A bit over an hour better then Debian, but still hanged. In comparison I was able to run the usbserial GT Fusion card this long without a hang: Connect time 9857.0 minutes. (that's 6d 20h 17min) Sent 26058438 bytes, received 536608566 bytes. Systems tested: ppp version: Debian: 2.4.4rel-9 Fedora: 2.4.4-2 kernel version: Debian: linux-image-2.6.18-4-686 version 2.6.18.dfsg.1-12etch2 Fedora: kernel-2.6.21-1.3194.fc7 -- Miernik http://miernik.name/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]