[Asterisk-Users] spandsp rxfax crashes *

[Martin Christian Koch]

Rxfax answers, makes handshake, and crashes once the page starts to send. It
receives a .tif file of 8 bytes.

Asterisk dumps core - gdb shows :

 

#0  0x281fd86c in t4_rx_putbit () from /usr/local/lib/libspandsp.so.0

#1  0x281fea3c in fast_putbit () from /usr/local/lib/libspandsp.so.0

#2  0x28208324 in decode_baud () from /usr/local/lib/libspandsp.so.0

#3  0x2820893f in process_baud () from /usr/local/lib/libspandsp.so.0

#4  0x28209266 in v29_rx () from /usr/local/lib/libspandsp.so.0

#5  0x2820286c in fax_rx_process () from /usr/local/lib/libspandsp.so.0

#6  0x281f2518 in rxfax_exec (chan=0x8360000, data=0xbfa10c4c) at
app_rxfax.c:223

#7  0x8060ba4 in pbx_exec (c=0x8360000, app=0x8100480, data=0xbfa10c4c,
newstack=1) at pbx.c:396

#8  0x8062646 in pbx_extension_helper (c=0x8360000, context=0x8360144 "fax",
exten=0x8360238 "s", priority=2, 

    callerid=0x80ff2e0 "56167761", action=1) at pbx.c:1173

#9  0x8063189 in ast_pbx_run (c=0x8360000) at pbx.c:1657

#10 0x8069009 in pbx_thread (data=0x8360000) at pbx.c:1882

#11 0x2815124c in _thread_start () from /usr/lib/libc_r.so.4

#12 0x0 in ?? ()

 

Log from asterisk :

 

Slow carrier up

<<< TSI: 43 30 36 37 37 36 31 36 35 20 35 34 2b 20 20 20 20 20 20 20 20

TSI without final frame tag

Remote fax gave TSI as: "+45 56167760"

<<< DCS: 83 00 46 20

DCS with final frame tag

In state 9

DCS:

Can receive fax

Selected data signalling rate: V.29, 9600bps

R8x7.7lines/mm and/or 200x200pels/25.4mm OK

Scan line length: 215mm

Recording length: A4 (297mm)

Minimum scan line time: 10ms

Get at 9600

Changed from phase 3 to 5

Fast carrier up

Fast carrier down

Fast carrier up

Coarse carrier frequency 1699.97 (66)

Training error 37.103968

Training succeeded (constellation mismatch 27.330220)

Fast carrier trained

Fast carrier down

Changed from phase 5 to 4

Start rx document - compression 1

Start rx page

asterisk in realloc(): warning: junk pointer, too high to make sense

Oh dear!

>>> CFR: 84

HDLC underflow in state 5

Post trainability

Changed from phase 4 to 5

Fast carrier up

Coarse carrier frequency 1699.96 (66)

Training error 18.146600

Training succeeded (constellation mismatch 23.838956)

Fast carrier trained

Segmentation fault (core dumped)

 

Regards,

Martin Christian Koch


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