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wvdial crashes BADLY on ARM arch - SOLVED - workaround
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Januszzz
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Joined: 04 Feb 2006
Posts: 367
Location: Opole, Poland

PostPosted: Wed Dec 11, 2013 11:09 pm    Post subject: wvdial crashes BADLY on ARM arch - SOLVED - workaround Reply with quote

Hello,

cross-posting with bugzilla ;-) https://bugs.gentoo.org/show_bug.cgi?id=493980

What happens is wvdial dies when it just should not. This makes things sort of dramatic ;-)

Anyone have maybe workaround this?


Code:
MiniBox ~ # cat /etc/wvdial.conf

[Dialer defaults]
Init1 = AT+CGDCONT=1,"IP","internet"
Modem Type = Analog Modem
ISDN = 0
Phone = *99
Modem = /dev/modem
Username = internet
Dial Command = ATDTW
Stupid Mode = 1
Password = internet
Baud = 460800
MiniBox ~ # wvdial
--> WvDial: Internet dialer version 1.61
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT+CGDCONT=1,"IP","internet"
AT+CGDCONT=1,"IP","internet"
OK
--> Modem initialized.
wvdial: utils/wvtask.cc:203: WvTaskMan::WvTaskMan(): Assertion `getcontext(&get_stack_return) == 0' failed.
Aborted
MiniBox ~ #


Have a nice day :-)


Last edited by Januszzz on Mon Jan 06, 2014 11:18 pm; edited 1 time in total
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cwr
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Joined: 17 Dec 2005
Posts: 1968

PostPosted: Fri Dec 13, 2013 3:41 pm    Post subject: Reply with quote

"Cannot get information for serial port" looks like a starting point. Have you tried
talking to the modem directly with eg. Kermit? That's the way I usually start debugging
serial port problems.

Will
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NeddySeagoon
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Joined: 05 Jul 2003
Posts: 42569
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PostPosted: Fri Dec 13, 2013 6:52 pm    Post subject: Reply with quote

Januszzz,

Code:
Modem = /dev/modem

Does that exist?
It used to be symlink to /dev/ttyS0 in the good old days.
Does /dev/ttyS0 and friends exit?

I have
Code:
crw-rw---- 1 root uucp 4, 64 Dec 13 17:43 /dev/ttyS0
... etc

You seem to be running as root, so you won't have permissions issues yet but normal users will need membership of the uucp group to dial out.
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NeddySeagoon

Computer users fall into two groups:-
those that do backups
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Januszzz
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Joined: 04 Feb 2006
Posts: 367
Location: Opole, Poland

PostPosted: Mon Jan 06, 2014 11:17 pm    Post subject: Reply with quote

Hello! I'm sorry I've missed your replies!

All friends are there, device files and modem symlink too. Wvdial neverthless always dies for some reason, no matter config includes device, symlink, or nothing.

Code:
MiniBox ~ # ls -al /dev/ttyACM*
crw-rw---- 1 root uucp 166, 0 Jan  7 00:09 /dev/ttyACM0
crw-rw---- 1 root uucp 166, 1 Jan  6 23:42 /dev/ttyACM1
crw-rw---- 1 root uucp 166, 2 Jan  6 23:35 /dev/ttyACM2


But there is work around, I'll write this again for the future - baselayout-2 can be configured to just start net.ppp0. It can replace wvdial for some extent (to the whole?)

Code:
config_ppp0=( "ppp" )
link_ppp0="/dev/ttyACM0"
username_ppp0='orange'
password_ppp0='orange'
pppd_ppp0=" maxfail 25 debug defaultroute usepeerdns noipdefault ipcp-accept-remote ipcp-accept-local lcp-echo-interval 5 lcp-echo-failure 3 mtu 1500 mru 1500 novj nobsdcomp nodeflate novjccomp nopredictor1 nomagic persist lock 115200 modem crtscts"
chat_ppp0="
        'ABORT' 'BUSY'
        'ABORT' 'ERROR'
        'ABORT' 'NO ANSWER'
        'ABORT' 'NO CARRIER'
        'ABORT' 'NO DIALTONE'
        'REPORT' 'CONNECT'
        '' 'AT+CGDCONT=1'
        'OK' 'AT&F'
        'OK' 'ATE1'
        'OK' 'AT+CPIN?'
        'OK' 'AT+COPS?'
        'OK' 'AT+CSQ'
        'OK' 'AT+CGDCONT=1,\\\"IP\\\",\\\"internet\\\"'
        'OK' 'ATDT*99#'
        'CONNECT' 'c'
"


It doesn't support entering PIN (or it is, but I didn't check it further). I use comgt ( http://sourceforge.net/projects/comgt/?source=directory ) for entering the pin and some other less frequent stuff.

Baselayout works like expected. Talking to the modem itself using AT commands works too (entering pin, connecting, all above chat commands and others tested for GPS works to some extent). Connection works fine and when dies, it is properly restarted by pppd. All works except wvdial, of course :-)

Thank you for replies!
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