[asterisk-ss7] Asterisk with chan_ss7 "freeze"

[misme Gazeta.pl]

Hi,

I have problem with asterisk 1.8.19.0, dahdi 2.2.1.1 and chan_ss7
2.1.1b-sam (with SAM support patch) - time to time it "freeze"
 - in log there is information:

[Dec 27 20:31:58] NOTICE[14139] mtp.c: Full MTP receivebuf, event lost,
type=15.

asterisk is working, but when i try to execute "core show channels" it
shows only header of information:

Connected to Asterisk 1.8.19.0 currently running on ZDAP (pid + 19506)
ZDAP*CLI> core show channels
Channel Location State Application(dataa)
ZDAP*CLI> core stop now
ZDAP*CLI> exit

asterisk also do not respond to "core stop now" - only "killall -9
asterisk" can stop it. What could be a problem?

Regards,
misme
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