ok it was in fact a bug. If no modem definition was used it was accessing memory which was never allocated. SVN now has a fix for it.
On 06.08.2012, at 18:49, "Rene Kluwen" <[email protected]> wrote: > I could “fix” it by changing line 252 of smsc_at.c to: > > if(privdata->modem && privdata->modem->hardware_flow_control) { > > But… This assumes that if there’s still no modem detected at that time, > hardware flow control is disabled. > If that is not a correct assumption, the expression needs to be inverted. > > == Rene > > From: Rene Kluwen [mailto:[email protected]] > Sent: Monday, 06 August, 2012 18:46 > To: 'Rene Kluwen'; 'Andreas Fink'; [email protected] > Subject: RE: at smsc bug > > Output from gdb: > > at2_open_device (privdata=0x9d712e0) at gw/smsc/smsc_at.c:252 > 252 if(privdata->modem->hardware_flow_control) { > (gdb) backtrace > #0 at2_open_device (privdata=0x9d712e0) at gw/smsc/smsc_at.c:252 > #1 0x0808764d in at2_test_speed (privdata=0x0, speed=5) at > gw/smsc/smsc_at.c:2595 > #2 0x080877ca in at2_device_thread (arg=0x9d75240) at gw/smsc/smsc_at.c:2577 > #3 0x080d3541 in new_thread (arg=0x9d71420) at gwlib/gwthread-pthread.c:362 > #4 0x009bc45b in start_thread () from /lib/libpthread.so.0 > #5 0x0091423e in clone () from /lib/libc.so.6 > > From: Rene Kluwen [mailto:[email protected]] > Sent: Monday, 06 August, 2012 18:38 > To: 'Rene Kluwen'; 'Andreas Fink'; [email protected] > Subject: RE: at smsc bug > > Could it be that privdata->modem still has a NULL value at that time? > > =+= Rene > > > From: Rene Kluwen [mailto:[email protected]] > Sent: Monday, 06 August, 2012 18:32 > To: 'Rene Kluwen'; 'Andreas Fink'; [email protected] > Subject: RE: at smsc bug > > If I comment out the lines between: > > #if defined(CRTSCTS) and #endif, then it works. > > Weird… > > == Rene > > From: [email protected] [mailto:[email protected]] On > Behalf Of Rene Kluwen > Sent: Monday, 06 August, 2012 18:21 > To: 'Andreas Fink'; [email protected] > Subject: RE: at smsc bug > > These are the changes that were made since the version that worked (see > attached document). > I tried both hardware-flow-control = true and false. Both gave me the same > error. > > == Rene > > > From: Andreas Fink [mailto:[email protected]] > Sent: Monday, 06 August, 2012 18:07 > To: Rene Kluwen > Subject: Re: at smsc bug > > please run it in with log-level=0 and send the output of the logfile so we > can see the backtrace of the issue. > > On 06.08.2012, at 18:01, Rene Kluwen <[email protected]> wrote: > > > When starting current head revision in combination with a huwaei usb modem, I > get the following. > An older version of bearerbox has been working perfectly for some months > already. This happened when I tried to upgrade. > This is on a production machine, so it is a little bit hard to debug. The > only thing that left me was downgrading again. > > Logs: > > 2012-08-06 17:55:07 [6608] [0] INFO: ---------------------------------------- > 2012-08-06 17:55:07 [6608] [0] INFO: Kannel bearerbox II version svn-r4988 > starting > 2012-08-06 17:55:07 [6608] [0] INFO: MAIN: Start-up done, entering mainloop > 2012-08-06 17:55:07 [6608] [0] DEBUG: AT2[hvgsmsc]: start called > 2012-08-06 17:55:07 [6608] [6] DEBUG: Thread 6 > (gw/smsc/smsc_at.c:at2_device_thread) maps to pid 6608. > 2012-08-06 17:55:07 [6608] [6] DEBUG: AT2[hvgsmsc]: detecting modem speed. > 2012-08-06 17:55:07 [6608] [6] INFO: AT2[hvgsmsc]: opening device > 2012-08-06 17:55:07 [6608] [6] DEBUG: AT2[hvgsmsc]: device opened. Telnet > mode = 0 > 2012-08-06 17:55:07 [6608] [6] PANIC: ./bearerbox [0x80e8ebd] > 2012-08-06 17:55:07 [6608] [6] PANIC: [0x160440] > 2012-08-06 17:55:07 [6608] [6] PANIC: ./bearerbox [0x808764d] > 2012-08-06 17:55:07 [6608] [6] PANIC: ./bearerbox [0x80877ca] > 2012-08-06 17:55:07 [6608] [6] PANIC: ./bearerbox [0x80d3541] > 2012-08-06 17:55:07 [6608] [6] PANIC: /lib/libpthread.so.0 [0x9bc45b] > 2012-08-06 17:55:07 [6608] [6] PANIC: /lib/libc.so.6(clone+0x5e) [0x91423e] > Segmentation fault > > Config: > > group = smsc > smsc-id = hvgsmsc > smsc = at > modemtype=auto > device=/dev/ttyUSB0 > my-number=+316xxxxxxx > pin = 0000 > connect-allow-ip = 127.0.0.1 > sms-center = "+316540881000" > log-level = 0 > sim-buffering = true > > group = modems > id = huawei > name = "Huawei" > detect-string = "huawei" > detect-string2 = "K3765" > init-string = "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0; +CNMI=1,1,0,2,0; +CMEE=1" > message-storage = "SM" > message-start = 0 > >
