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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-3788

zabbix daemon processes hang on futex

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      sometimes zabbix agent will leave one process hanging upon exit. this has so far always happened after sending "killall -15 zabbix_agentd".

      strace shows :

      Process 10468 attached - interrupt to quit
      futex(0xb783ca50, FUTEX_WAIT_PRIVATE, 2, NULL

      what's confusing, this pid does not appear in the agentd log at all.

      no idea whether this is in any way related to shared memory/semaphores, but the only thing owned by zabbix at that time is :

      ------ Shared Memory Segments --------
      key shmid owner perms bytes nattch status
      0x00000000 3801088 zabbix 600 491612 1 dest

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            Assignee:
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            Reporter:
            richlv richlv
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