[asterisk-bugs] [Asterisk 0016634]: asterisk crashes while fax sending

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16634 
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Reported By:                krn
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16634
Category:                   Channels/chan_sip/T.38
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.6.0.20 
JIRA:                       SWP-747 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-01-18 10:30 CST
Last Modified:              2010-01-26 23:18 CST
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Summary:                    asterisk crashes while fax sending
Description: 
[general]
t38pt_udptl=yes
#next three lines makes no changes
t38pt_rtp=yes
t38pt_usertpsource=yes
faxdetect = yes

[provider]
type=peer
host=sip.provider.com
fromdomain=sip.provider.com
context=incoming-from-prov
port=5065
defaultuser=user
secret=password
fromuser=user
call-limit=10
canreinvite=yes
insecure=invite,port
nat=no
disallow=all
allow=ulaw
allow=alaw
dtmfmode=rfc2833

[IntUser]
type=friend
host=dynamic
context=office-internal
defaultuser=intuser
secret=password
callgroup=3
pickupgroup=3
callerid=103 User
canreinvite=yes
qualify=30000
call-limit=2
t38pt_udptl=yes
disallow=all
allow=ulaw
allow=alaw
t38pt_udptl=yes
faxdetect=yes
dtmfmode=rfc2833
nat=no

IntUser - ATA Linksys SPA2102 with fax attached
T.38 with reinvite, vad disabled, external non-firewalled ip

Messages before crash:
WARNING[11356]: udptl.c:766 calculate_far_max_ifp: (no tag): Cannot
calculate far_max_ifp before far_max_datagram has been set.
WARNING[11389]: udptl.c:725 calculate_local_max_datagram: (no tag): Cannot
calculate local_max_datagram before local_max_ifp has been set.
WARNING[11389]: udptl.c:766 calculate_far_max_ifp: (SIP/xxxxxxxxxxxxxx):
Cannot calculate far_max_ifp before far_max_datagram has been set.


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 (0117230) digitalc (reporter) - 2010-01-26 23:18
 https://issues.asterisk.org/view.php?id=16634#c117230 
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Another crash while attempting to send a fax via the same asterisk
1.6.1.13:

    -- Called sipgateway/12345678901
    -- SIP/sipgateway-00000005 is making progress passing it to
SIP/customerfax2-00000004
    -- SIP/sipgateway-00000005 answered SIP/customerfax2-00000004
    -- Packet2Packet bridging SIP/customerfax2-00000004 and
SIP/sipgateway-00000005
[Jan 26 21:08:47] WARNING[9846]: udptl.c:766 calculate_far_max_ifp: (no
tag): Cannot calculate far_max_ifp before far_max_datagram has been set.
[Jan 26 21:08:47] WARNING[12569]: udptl.c:725
calculate_local_max_datagram: (SIP/blah-fax2): Cannot calculate
local_max_datagram before local_max_ifp has been set.
[Jan 26 21:09:07] NOTICE[12569]: udptl.c:1069 ast_udptl_write:
(SIP/12345678901): UDPTL Transmission error to 1.2.3.4:33824: Bad address
my*CLI> 
Disconnected from Asterisk server


(gdb) bt full
https://issues.asterisk.org/view.php?id=0  0xb751dde4 in ao2_unlock at plt () from
/usr/lib/asterisk/modules/chan_sip.so
No symbol table info available.
https://issues.asterisk.org/view.php?id=1  0xb752cf45 in sip_write (ast=0x0,
frame=0x0) at chan_sip.c:5890
        p = (struct sip_pvt *) 0x0
        res = 0
        __PRETTY_FUNCTION__ = "sip_write"
https://issues.asterisk.org/view.php?id=2  0x00000000 in ?? ()
No symbol table info available. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-01-26 23:18 digitalc       Note Added: 0117230                          
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