Asterisk 18.1.1 ERROR[749178] format_cache.c: FRACK!, Failed assertion bad magic number

[Igor_Yer]

Hello.
We try to implement auto dialer with Asterisk ARI Interface.
When we start calling after several calls we receive Errors
[Feb 17 10:35:03] ERROR[749178] format_cache.c: FRACK!, Failed assertion bad magic number 0x0 for object 0x11a8ff8 (0)
[Feb 17 10:35:03] ERROR[749178] : Got 13 backtrace records

0: /usr/sbin/asterisk(__ao2_ref+0x571) [0x45af51]

1: /usr/sbin/asterisk(__ao2_iterator_next+0xd9) [0x45d5c9]

2: /usr/sbin/asterisk(ast_format_cache_get_by_codec+0xa9) [0x4e0ff9]

3: /usr/sbin/asterisk(ast_format_cap_append_by_type+0x69) [0x4e1ae9]

4: /usr/lib/asterisk/modules/res_ari_channels.so(+0xc31f) [0x7f940d62e31f]

5: /usr/lib/asterisk/modules/res_ari_channels.so(+0x5267) [0x7f940d627267]

6: /usr/lib/asterisk/modules/res_ari.so(ast_ari_invoke+0x539) [0x7f94147d51f9]

7: /usr/lib/asterisk/modules/res_ari.so(+0x76b3) [0x7f94147d66b3]

8: /usr/sbin/asterisk() [0x5d4b33]

9: /usr/sbin/asterisk() [0x5d509b]

#10: /usr/sbin/asterisk() [0x5932d9]
#11: /lib64/libpthread.so.0(+0x82de) [0x7f9487c5e2de]
#12: /lib64/libc.so.6(clone+0x43) [0x7f9486f7ee83]

After this errors asterisk was restarted.
Please direct us where to look to understand what we are doing wrong.
Which additional information do you need?

[jcolp]

Issue reports such as these need to go on the issue tracker[1] and need to include full information on usage of Asterisk. In this case that includes the specific usage of ARI, configuration, etc.

[1] https://issues.asterisk.org/jira

[david551]

https://issues.asterisk.org/jira/browse/ASTERISK-29296