[asterisk-bugs] [JIRA] (ASTERISK-28437) Taskprocessor doesn't process the tasks

Chris Savinovich (JIRA) noreply at issues.asterisk.org
Wed Jun 12 16:56:47 CDT 2019


     [ https://issues.asterisk.org/jira/browse/ASTERISK-28437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Savinovich updated ASTERISK-28437:
----------------------------------------

    Status: Open  (was: Triage)

> Taskprocessor doesn't process the tasks
> ---------------------------------------
>
>                 Key: ASTERISK-28437
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28437
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/Stasis
>    Affects Versions: 15.7.2
>            Reporter: sungtae kim
>            Severity: Minor
>              Labels: pjsip
>         Attachments: core-asterisk-running-2019-06-05T13-01-31+0000-brief.txt, core-asterisk-running-2019-06-05T13-01-31+0000-full.txt, core-asterisk-running-2019-06-05T13-01-31+0000-locks.txt, core-asterisk-running-2019-06-05T13-01-31+0000-thread1.txt
>
>
> Hi Asterisk team,
> One of Asterisk's taskprocessor doesn't process the tasks. Seems like stuck some deadlock, but couldn't figure out why.
> {noformat}
> CLI> core show taskprocessors
> Processor                                      Processed   In Queue  Max Depth  Low water High water
> ast_msg_queue                                          0          0          0        450        500
> CCSS_core                                              0          0          0        450        500
> dns_system_resolver_tp                                 0          0          0        450        500
> hep_queue_tp                                           0          0          0        450        500
> iax2_transmit                                          0          0          0        450        500
> pjsip/default-0000000a                           1207948          0          2        450        500
> pjsip/default-0000000b                           1207946          0          1        450        500
> pjsip/default-0000000c                           1207949          0          2        450        500
> pjsip/default-0000000d                           1207948          0          2        450        500
> pjsip/default-0000000e                           1207949          0          2        450        500
> pjsip/default-0000000f                           1207950          0          2        450        500
> pjsip/default-00000010                           1207947          0          2        450        500
> pjsip/default-00000011                           1207945          0          1        450        500
> pjsip/distributor-0000001e                        267542          0          4        450        500
> pjsip/distributor-0000001f                        272156          0          6        450        500
> pjsip/distributor-00000020                        264634          0          5        450        500
> pjsip/distributor-00000021                        268282          0          5        450        500
> pjsip/distributor-00000022                        270238          0          7        450        500
> pjsip/distributor-00000023                        270059          0          4        450        500
> pjsip/distributor-00000024                        270525          0          6        450        500
> pjsip/distributor-00000025                        270730          0          4        450        500
> pjsip/distributor-00000026                        272161          0          5        450        500
> pjsip/distributor-00000027                        273404          0          6        450        500
> pjsip/distributor-00000028                        274615          0          9        450        500
> pjsip/distributor-00000029                        273141          0          4        450        500
> pjsip/distributor-0000002a                        269424          0          7        450        500
> pjsip/distributor-0000002b                        269376          0          5        450        500
> pjsip/distributor-0000002c                        269265          0          6        450        500
> pjsip/distributor-0000002d                        270574          0          4        450        500
> pjsip/distributor-0000002e                        269473          0          4        450        500
> pjsip/distributor-0000002f                        275079          0          5        450        500
> pjsip/distributor-00000030                        270892          0          5        450        500
> pjsip/distributor-00000031                        274360          0          4        450        500
> pjsip/distributor-00000032                        274523          0          4        450        500
> pjsip/distributor-00000033                        268106          0          7        450        500
> pjsip/distributor-00000034                        269143          0          6        450        500
> pjsip/distributor-00000035                        273046          0          4        450        500
> pjsip/distributor-00000036                        270502       1354          5        450        500
> pjsip/distributor-00000037                        274427          0          6        450        500
> pjsip/distributor-00000038                        268568          0          5        450        500
> pjsip/distributor-00000039                        271983          0          4        450        500
> pjsip/distributor-0000003a                        271705          0          4        450        500
> pjsip/distributor-0000003b                        269543          0          5        450        500
> pjsip/distributor-0000003c                        271750          0          5        450        500
> ...
> 289 taskprocessors
> {noformat}
> I'm doubting about this part, but not clear how to digging in deeper.
> {noformat}
> Thread 76 (LWP 7723):
> #0  0x00007fe4216d6f5c in ?? () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:107 from /lib/x86_64-linux-gnu/libpthread.so.0
> #1  0x00007fe40cea1460 in ?? () from /usr/lib/asterisk/modules/res_stasis.so
> #2  0x0000558571255db2 in __ast_string_field_empty_buffer ()
> #3  0x00007fe4216d487c in pthread_cond_signal@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S:117
> #4  0x0000558570e8deb8 in __ast_cond_signal (filename=<optimized out>, lineno=<optimized out>, func=<optimized out>, cond_name=<optimized out>, cond=<optimized out>) at lock.c:508
> #5  0x00007fe40ce9c5da in exec_command_on_condition (can_exec_fn=0x0, data_destructor=<optimized out>, data=<optimized out>, command_fn=<optimized out>, control=0x7fe207c56520) at stasis/control.c:273
> #6  exec_command (data_destructor=<optimized out>, data=<optimized out>, command_fn=<optimized out>, control=0x7fe207c56520) at stasis/control.c:283
> #7  stasis_app_send_command_async (control=0x7fe207c56520, command_fn=<optimized out>, data=<optimized out>, data_destructor=<optimized out>) at stasis/control.c:843
> #8  0x00007fe40ce9d43b in dial_bridge_after_cb (data=0x7fe207c56520, chan=<optimized out>) at stasis/control.c:941
> #9  dial_bridge_after_cb_failed (reason=<optimized out>, data=0x7fe207c56520) at stasis/control.c:951
> #10 0x0000558570dbbdf8 in after_bridge_cb_failed (node=0x7fe2b6c95630) at bridge_after.c:70
> #11 after_bridge_cb_run_discard (reason=AST_BRIDGE_AFTER_CB_REASON_DESTROY, after_bridge=0x7fe206a3bab0) at bridge_after.c:99
> #12 after_bridge_cb_destroy (data=0x7fe206a3bab0) at bridge_after.c:117
> #13 0x0000558570e3e60c in ast_datastore_free (datastore=datastore at entry=0x7fe207638580) at datastore.c:68
> #14 0x0000558570dffa56 in ast_channel_destructor (obj=0x7fe185b2ffd0) at channel.c:2255
> #15 0x0000558570da1310 in __ao2_ref (user_data=0x7fe185b2ffd0, delta=delta at entry=-1, tag=tag at entry=0x7fe386409b29 "", file=file at entry=0x7fe3864099bf "chan_pjsip.c", line=line at entry=2312, func=func at entry=0x7fe386409580 <__PRETTY_FUNCTION__.29394> "hangup_data_destroy") at astobj2.c:584
> #16 0x00007fe3863fdcad in hangup_data_destroy (obj=0x7fe206717bc0) at chan_pjsip.c:2312
> #17 0x0000558570da1310 in __ao2_ref (user_data=user_data at entry=0x7fe206717bc0, delta=delta at entry=-1, tag=tag at entry=0x7fe386409b29 "", file=file at entry=0x7fe3864099bf "chan_pjsip.c", line=line at entry=2354, func=func at entry=0x7fe3864095d1 <__PRETTY_FUNCTION__.29416> "hangup") at astobj2.c:584
> #18 0x0000558570da16bb in __ao2_cleanup_debug (obj=obj at entry=0x7fe206717bc0, tag=tag at entry=0x7fe386409b29 "", file=file at entry=0x7fe3864099bf "chan_pjsip.c", line=line at entry=2354, function=function at entry=0x7fe3864095d1 <__PRETTY_FUNCTION__.29416> "hangup") at astobj2.c:657
> #19 0x00007fe386402590 in hangup (data=0x7fe206717bc0) at chan_pjsip.c:2354
> #20 0x0000558570f4ad28 in ast_taskprocessor_execute (tps=tps at entry=0x5585723c4a30) at taskprocessor.c:970
> #21 0x0000558570f51dd0 in execute_tasks (data=0x5585723c4a30) at threadpool.c:1322
> #22 0x0000558570f4ad28 in ast_taskprocessor_execute (tps=0x55857212d280) at taskprocessor.c:970
> #23 0x0000558570f52304 in threadpool_execute (pool=0x55857212d760) at threadpool.c:351
> #24 worker_active (worker=0x7fe3a8282340) at threadpool.c:1105
> #25 worker_start (arg=arg at entry=0x7fe3a8282340) at threadpool.c:1024
> #26 0x0000558570f5d949 in dummy_start (data=<optimized out>) at utils.c:1258
> #27 0x00007fe4216ce494 in start_thread (arg=0x7fe3724f8700) at pthread_create.c:456
> #28 0x00007fe420949acf in __libc_ifunc_impl_list (name=<optimized out>, array=0x7fe3724f8700, max=<optimized out>) at ../sysdeps/x86_64/multiarch/ifunc-impl-list.c:387
> #29 0x0000000000000000 in ?? ()
> {noformat}
> After restarting the Asterisk, everything works fine. But we want to prevent this again in the future.
> However, no idea what causes this problem and how to fix this if this happens again.



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