asterisk users - Jun 2016 - Asterisk dumping core. How to read fax debug

All;

    I have a customer running Asterisk 11.6-cert13. The server is solely
used for faxing. The problem he has is that Asterisk is dumping core on a
very regular basis, maybe half a dozen times a day at least. From the logs,
I see that the last commands executed before the dump were fax commands
(makes sense). The typical fax logging looks like this:

 

res_fax.c: FLOW T.38 Tx   422: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   422: IFP c8 01 e0 00 23 65 e6 1b 0d 88 93 7b ee db
bb bb b6 22 21 95 85 61 58 56 15 85 61 58 56 1e cf 65 61 ec ac 2b 0f 65 5f
6f 77

res_fax.c: FLOW T.38 Tx   423: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   423: IFP c8 01 e0 00 23 db 77 fd d8 88 88 b2 3b 62
c8 e0 c1 1c c8 e6 47 32 38 52 38 52 39 91 cc 8e 64 73 23 84 63 67 aa ee ee
ed 91

res_fax.c: FLOW T.38 Tx   424: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   424: IFP c8 01 e0 00 23 c1 78 00 81 87 8f fc b2 cb
fb f0 d5 f0 c4 10 21 04 09 83 0c 10 94 e2 53 88 22 f8 6c 1b 06 c1 b0 6c 1b
06 c1

res_fax.c: FLOW T.38 Tx   425: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   425: IFP c8 01 e0 00 23 86 61 82 60 d8 36 1b 0d 86
c1 82 04 c1 b0 d8 36 1b 0d 86 c3 61 b0 61 82 0c c6 6f 37 9b d9 ec f6 7b 3d
9e cf

res_fax.c: FLOW T.38 Tx   426: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   426: IFP c8 01 e0 00 23 67 b3 db 6d 9e db 3d 9e db
3d b0 6c 36 0d 83 60 d8 23 db 0d 86 c3 60 d8 36 0c 41 02 12 9c b7 2d cb 1c
9b 96

res_fax.c: FLOW T.38 Tx   427: (0) data v29-9600/t4-non-ecm-data + 36
byte(s)

res_fax.c: FLOW T.38 Tx   427: IFP c8 01 e0 00 23 e2 08 13 06 5b 89 4e 5b 96
e2 53 89 4e 25 38 94 e5 b8 94 e5 b8 94 e2 53 89 4e 25 38 94 e0 81 06 61 97
4d 9b

 

 

So my question is this. Is there any documentation out there that describes
what the fax logging means? Can anyone shed some light on how to begin
solving this problem? 

Thanks;

John V.

 

 

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