[asterisk-users] Any thoughts on Asterisk 16.17.0 outputting FRACK refcount related messages

[Dan Cropp]

We have an extremely busy/large customer.  They run fine most of the time, but periodically asterisk will output FRACK refcount related messages.  It doesn't seem to be related to the volume, because it's not breaking during their peak times.

When this happens, the system becomes unstable and they have to restart to get things resolved.
To give an idea of the instability, we have seen INVITE/Trying responses in SIP messaging logs.
We tell Asterisk to answer via AMI, but Asterisk never sends the OK (even 24 seconds later it hasn't sent).
Eventually the other send CANCEL of the call.


We've now captured 4 different days where something like the following occurs.
1) Is there a good way to tell if this may be fixed in Asterisk 16.20.0 (short of upgrading)?
2) Would this be something I should submit as an asterisk issue?  Unfortunately, site is so busy capturing the debug will be very difficult (if not impossible) due to amount of data.


[09/23 14:43:45.095] ERROR[34763][C-00001d7f] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[34763][C-00001d7f] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] ERROR[29830] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[29832][C-00001920] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[29830] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] ERROR[29832][C-00001920] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] ERROR[32973] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[32973] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] ERROR[3248] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[3248] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] WARNING[2798][C-00000093] channel.c: Exceptionally long queue length queuing to CBAnn/IS__8b9c6719-ca29-4c1b-ac87-75e8c6fe7074-00000062;1
[09/23 14:43:45.095] ERROR[12979] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.095] ERROR[12979] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.095] WARNING[21123][C-00001157] channel.c: Exceptionally long queue length queuing to CBAnn/IS__a652155f-b1fb-4c31-83e5-09ffa2107979-000010de;1
[09/23 14:43:45.096] ERROR[29830] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.097] WARNING[36475][C-00000172] channel.c: Exceptionally long voice queue length queuing to CBAnn/IS__64bc075a-1ba4-4ad8-ba48-f0aea6ca6bab-00001ed3;1
[09/23 14:43:45.098] ERROR[12979] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.098] ERROR[34763][C-00001d7f] : Got 19 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(+0xa9517) [0x5637ebf2e517]
# 3: /usr/sbin/asterisk(ast_unreal_write_stream+0x15a) [0x5637ebf6ce1a]
# 4: /usr/sbin/asterisk(ast_write_stream+0xd2e) [0x5637ebf4551e]
# 5: /usr/sbin/asterisk(bridge_channel_internal_join+0xe6d) [0x5637ebf2238d]
# 6: /usr/sbin/asterisk(ast_bridge_join+0x3d5) [0x5637ebf05ce5]
# 7: /usr/lib/asterisk/modules/app_confbridge.so(+0xff35) [0x7fc05c258f35]
# 8: /usr/sbin/asterisk(pbx_exec+0xd2) [0x5637ebfdcf92]
# 9: /usr/lib/asterisk/modules/res_agi.so(+0xbea5) [0x7fc059269ea5]
#10: /usr/lib/asterisk/modules/res_agi.so(+0xd29b) [0x7fc05926b29b]
#11: /usr/lib/asterisk/modules/res_agi.so(+0xf7b0) [0x7fc05926d7b0]
#12: /usr/sbin/asterisk(pbx_exec+0xd2) [0x5637ebfdcf92]
#13: /usr/sbin/asterisk(+0x149062) [0x5637ebfce062]
#14: /usr/sbin/asterisk(+0x14d143) [0x5637ebfd2143]
#15: /usr/sbin/asterisk(+0x14e9e9) [0x5637ebfd39e9]
#15: /usr/sbin/asterisk(+0x14e9e9) [0x5637ebfd39e9]
#16: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
#17: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
#18: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.098] ERROR[29832][C-00001920] : Got 10 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(+0xa9517) [0x5637ebf2e517]
# 3: /usr/sbin/asterisk(ast_unreal_write+0x15a) [0x5637ebf6ca0a]
# 4: /usr/sbin/asterisk(ast_write_stream+0xd2e) [0x5637ebf4551e]
# 5: /usr/sbin/asterisk(bridge_channel_internal_join+0xe6d) [0x5637ebf2238d]
# 6: /usr/sbin/asterisk(+0x806f3) [0x5637ebf056f3]
# 7: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 8: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 9: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.099] ERROR[3248] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.099] ERROR[32973] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.207] ERROR[36630] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.207] ERROR[36630] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.207] ERROR[34172][C-00001cfb] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.207] ERROR[34172][C-00001cfb] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.207] ERROR[28738] frame.c: Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8
[09/23 14:43:45.207] ERROR[28738] frame.c: FRACK!, Failed assertion Excessive refcount 100000 reached on ao2 object 0x5637ed3742b8 (0)
[09/23 14:43:45.207] ERROR[36630] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.208] WARNING[2798][C-00000093] channel.c: Exceptionally long queue length queuing to CBAnn/IS__8b9c6719-ca29-4c1b-ac87-75e8c6fe7074-00000062;1
[09/23 14:43:45.209] ERROR[34172][C-00001cfb] : Got 14 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_readframe+0x45) [0x5637ebf8c675]
# 3: /usr/lib/asterisk/modules/res_musiconhold.so(+0x4ca0) [0x7fc153b07ca0]
# 4: /usr/sbin/asterisk(+0xb5d6c) [0x5637ebf3ad6c]
# 5: /usr/sbin/asterisk(+0xc7a47) [0x5637ebf4ca47]
# 6: /usr/lib/asterisk/modules/res_agi.so(+0xeb9c) [0x7fc05926cb9c]
# 7: /usr/sbin/asterisk(pbx_exec+0xd2) [0x5637ebfdcf92]
# 8: /usr/sbin/asterisk(+0x149062) [0x5637ebfce062]
# 9: /usr/sbin/asterisk(+0x14d143) [0x5637ebfd2143]
#10: /usr/sbin/asterisk(+0x14e82b) [0x5637ebfd382b]
#11: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
#12: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
#13: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

[09/23 14:43:45.210] ERROR[28738] : Got 8 backtrace records
# 0: /usr/sbin/asterisk(__ao2_ref+0x209) [0x5637ebef1519]
# 1: /usr/sbin/asterisk(ast_frdup+0x1e2) [0x5637ebf96612]
# 2: /usr/sbin/asterisk(ast_bridge_channel_queue_frame+0x61) [0x5637ebf1cfe1]
# 3: /usr/lib/asterisk/modules/bridge_softmix.so(+0x40af) [0x7fc15362f0af]
# 4: /usr/lib/asterisk/modules/bridge_softmix.so(+0x560a) [0x7fc15363060a]
# 5: /usr/sbin/asterisk(+0x1db41f) [0x5637ec06041f]
# 6: /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db) [0x7fc1e9ebf6db]
# 7: /lib/x86_64-linux-gnu/libc.so.6(clone+0x3f) [0x7fc1e93f971f]

Dan

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