Bug#426440: /usr/sbin/pppd: sometimes connection with Option GlobeTrotter card hangs, ping: sendmsg: No buffer space available
On Sat, Jun 09, 2007 at 08:33:16AM +0200, Marc Haber wrote:
> I don't know, since I need to kill the ppp connection to get access to
> the serial port, needn't I?
No, you don't. You get 3 or 4 serial ports named /dev/ttyUSB0 to
/dev/ttyUSB2 or /dev/ttyUSB3 and on the /dev/ttyUSB2 port you can run AT
commands while beeing connected on port /dev/ttyUSB0 with ppp without
killing it. But if you disconnect your terminal from /dev/ttyUSB2 the
ppp connection will hangup (some bug), so a workaround is to first run
statserial on /dev/ttyUSB2, and keep it running all the time. Then you
can connect and disconnect a terminal from /dev/ttyUSB2 and ppp will
not hangup, until you don't stop statserial. Its available in Debian in
a package 'statserial'.
> > Revision: 3.19.0Hd (Date: May 31 2006, Time: 15:49:25)
>
> Can I upgrade card firmware without Windows?
No. At least not currently, until someone writes a firmware upgrade
program for GNU/Linux.
I searched a bit, and I now suspect that tha hangs might be because of
this bug: http://bugzilla.kernel.org/show_bug.cgi?id=6402
They write that in vanilla kernel 2.6.15.7 it is fine, and the bug was
introduced in some later version, so now I am compiling 2.6.15.7 to see
if it'll fix it. You may try the same, your card is different hardware.
If you do try, tell me if it fixed it or not.
--
Miernik
http://miernik.name/
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