#22 t38modem freeze in Ubuntu Server 14.04.02 LTS (64bit)

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Hello.

Please help find why t38modem every time freeze..
My OS Ubuntu Server 14.04.02 LTS (64bit)
T38Modem Version 2.0.0 (download from apt-get install t38modem)

If need more detail, please ask, don't ignore me..

please check detailed debug (-tttttt) in attachment.

2015/04/06 05:53:01.253 ttyT38-1(e...686814f700 ttyT38-1 T38Engine EnableFakeIn: disable
2015/04/06 05:53:01.354 ttyT38-1(e...686814f700 --> ATH0
2015/04/06 05:53:01.354 Housekeepe...68796bd700 PTLib MONITOR: timers=2, expiries=17
2015/04/06 05:53:01.354 ttyT38-1(e...686814f700 ttyT38-1 T38Engine Detach
2015/04/06 05:53:01.354 ttyT38-1(e...686814f700 ttyT38-1 T38Engine OnChangeModemClass to mcUndefined
2015/04/06 05:53:01.354 ttyT38-1(e...686814f700 ttyT38-1 T38Engine OnDetach Detached
2015/04/06 05:53:01.354 ttyT38-1(e...686814f700 ttyT38-1 T38Engine OnResetModemState
2015/04/06 05:53:01.438 Housekeepe...68796bd700 PTLib MONITOR: timers=1, expiries=17
2015/04/06 05:53:01.440 Opal Garba...6879780700 SIP Garbage collection: transactions=0, connections=0
2015/04/06 05:53:01.641 Housekeepe...68796bd700 PTLib MONITOR: timers=1, expiries=16
2015/04/06 05:53:02.440 Opal Garba...6879780700 SIP Garbage collection: transactions=0, connections=0
2015/04/06 05:53:03.440 Opal Garba...6879780700 SIP Garbage collection: transactions=0, connections=0
2015/04/06 05:53:04.440 Opal Garba...6879780700 SIP Garbage collection: transactions=0, connections=0
2015/04/06 05:53:05.440 Opal Garba...6879780700 SIP Garbage collection: transactions=0, connections=0
2015/04/06 05:53:06.353 ttyT38-1(i...686810e700 --> read ERROR -1 Input/output error
2015/04/06 05:53:06.353 ttyT38-1(i...686810e700 --> Stopped
2015/04/06 05:53:06.353 ttyT38-1(b...687973f700 WaitForTermination on 0x7f686810e700 for 596:31:23.647
2015/04/06 05:53:06.353 ttyT38-1(b...687973f700 PTLib Unblocking I/O fd=28 thread=ttyT38-1(i):1745938176:0x7f686810e700
2015/04/06 05:53:06.353 ttyT38-1(i...686810e700 PWLib File handle low water mark set: 36 PTextFile
2015/04/06 05:53:06.353 ttyT38-1(i...686810e700 PTLib Thread ended: name="ttyT38-1(i):1745938176:0x7f686810e700", real=272.952, kernel=0.000 (0%), user=0.000 (0%), both=0.000 (0%)
2015/04/06 05:53:06.363 ttyT38-1(b...687973f700 WaitForTermination on 0x7f686810e700 finished
2015/04/06 05:53:06.363 ttyT38-1(b...687973f700 PTLib Destroyed thread 0x7f6848002ab0 ttyT38-1(i):1745938176:0x7f686810e700(id = 7f686810e700)
2015/04/06 05:53:06.363 Housekeepe...68796bd700 PTLib MONITOR: timers=1, expiries=15
2015/04/06 05:53:06.364 ttyT38-1(o...68680cd700 <-- Stopped
2015/04/06 05:53:06.364 ttyT38-1(b...687973f700 WaitForTermination on 0x7f68680cd700 for 596:31:23.647