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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-20371

Crash agent2 on CentOS 7 when log monitoring in 6.0.0beta1

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Details

    • Problem report
    • Status: Done
    • Critical
    • Resolution: Unresolved
    • 6.0.0beta1
    • 6.0.0rc1 (master), 6.0 (plan)
    • CentOS Linux release 7.9.2009 (Core)
      gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
      go version go1.17.5 linux/amd64
    • Team C
    • Sprint 84 (Jan 2022)
    • 1

    Description

      Steps to reproduce:

      1. Build 6.0.0beta1 agent2 in CentOS 7, then install.
        1. ./configure --enable-agent2
        2. make install
      2. Configure, then run agent2.
        1. /usr/local/sbin/zabbix_agent2 -c /usr/local/etc/zabbix_agent2.conf
      3. Setup log monitoring on Web frontend. For example, create active item log[/tmp/zabbix_agent2.log].

      Result:

      Print the following error into console. Crash Agent2.

      fatal error: unexpected signal during runtime execution
      [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb470ff]runtime stack:
      runtime.throw({0xcd27c5, 0x17})
              /root/go/src/runtime/panic.go:1198 +0x71
      runtime.sigpanic()
              /root/go/src/runtime/signal_unix.go:719 +0x396goroutine 13 [syscall]:
      runtime.cgocall(0xa72d60, 0xc0003f9ad8)
              /root/go/src/runtime/cgocall.go:156 +0x5c fp=0xc0003f9ab0 sp=0xc0003f9a78 pc=0x429ebc
      zabbix.com/pkg/zbxlib._Cfunc_process_log_check(0x7f48d8000980, 0x7f48e40008c0, 0x7f48d80008f0, 0xa72a70, 0xc0003a4018, 0xc0003a4028, 0xc000010010, 0x7f48d80009c0)
              _cgo_gotypes.go:653 +0x4c fp=0xc0003f9ad8 sp=0xc0003f9ab0 pc=0x58f4ac
      zabbix.com/pkg/zbxlib.ProcessLogCheck.func3(0x7f48d80009c0, 0x7f48d8000980, 0xba7c02, 0x25, 0xc0003f9c40, 0x430b7d, 0xc0001cb6c0)
              /root/zabbix-6.0.0beta1/src/go/pkg/zbxlib/logfile.go:298 +0x125 fp=0xc0003f9b70 sp=0xc0003f9ad8 pc=0x591fa5
      zabbix.com/pkg/zbxlib.ProcessLogCheck(0xc0003a400c, 0xc0003f9da8, 0xc0002dd440, 0xcf4a40)
              /root/zabbix-6.0.0beta1/src/go/pkg/zbxlib/logfile.go:298 +0x186 fp=0xc0003f9cc8 sp=0xc0003f9b70 pc=0x591266
      zabbix.com/plugins/log.(*Plugin).Export(0x14707c0, {0xc0003a400c, 0x14707c0}, {0xc000068040, 0x48852e, 0x45cfe7}, {0xdb31f8, 0xc00022e0c0})
              /root/zabbix-6.0.0beta1/src/go/plugins/log/log.go:109 +0x50d fp=0xc0003f9df8 sp=0xc0003f9cc8 pc=0x74fbcd
      zabbix.com/internal/agent/scheduler.(*exporterTask).perform.func1({0xc0000380e0, 0x1b})
              /root/zabbix-6.0.0beta1/src/go/internal/agent/scheduler/task.go:168 +0x1cb fp=0xc0003f9fc0 sp=0xc0003f9df8 pc=0x5a982b
      zabbix.com/internal/agent/scheduler.(*exporterTask).perform·dwrap·2()
              /root/zabbix-6.0.0beta1/src/go/internal/agent/scheduler/task.go:204 +0x31 fp=0xc0003f9fe0 sp=0xc0003f9fc0 pc=0x5a9631
      runtime.goexit()
              /root/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc0003f9fe8 sp=0xc0003f9fe0 pc=0x48a701
      created by zabbix.com/internal/agent/scheduler.(*exporterTask).perform
              /root/zabbix-6.0.0beta1/src/go/internal/agent/scheduler/task.go:156 +0x108goroutine 1 [select, 2 minutes]:
      main.run()
              /root/zabbix-6.0.0beta1/src/go/cmd/zabbix_agent2/zabbix_agent2.go:178 +0x185
      main.main()
              /root/zabbix-6.0.0beta1/src/go/cmd/zabbix_agent2/zabbix_agent2.go:566 +0x1853goroutine 19 [select]:
      zabbix.com/internal/agent/scheduler.(*Manager).run(0xc0002af040)
              /root/zabbix-6.0.0beta1/src/go/internal/agent/scheduler/manager.go:352 +0x1cf
      created by zabbix.com/internal/agent/scheduler.(*Manager).Start
              /root/zabbix-6.0.0beta1/src/go/internal/agent/scheduler/manager.go:540 +0x6fgoroutine 20 [chan receive]:
      zabbix.com/internal/agent/resultcache.(*MemoryCache).run(0xc0002dd440)
              /root/zabbix-6.0.0beta1/src/go/internal/agent/resultcache/memorycache.go:208 +0x85
      created by zabbix.com/internal/agent/resultcache.(*MemoryCache).Start
              /root/zabbix-6.0.0beta1/src/go/internal/agent/resultcache/memorycache.go:238 +0x6fgoroutine 21 [select]:
      zabbix.com/internal/agent/serverconnector.(*Connector).run(0xc0002b6f30)
              /root/zabbix-6.0.0beta1/src/go/internal/agent/serverconnector/serverconnector.go:310 +0x1d7
      created by zabbix.com/internal/agent/serverconnector.(*Connector).Start
              /root/zabbix-6.0.0beta1/src/go/internal/agent/serverconnector/serverconnector.go:372 +0x87goroutine 22 [IO wait, 2 minutes]:
      internal/poll.runtime_pollWait(0x7f491e68e6e8, 0x72)
              /root/go/src/runtime/netpoll.go:234 +0x89
      internal/poll.(*pollDesc).wait(0xc0002d8400, 0xc0003a4120, 0x0)
              /root/go/src/internal/poll/fd_poll_runtime.go:84 +0x32
      internal/poll.(*pollDesc).waitRead(...)
              /root/go/src/internal/poll/fd_poll_runtime.go:89
      internal/poll.(*FD).Accept(0xc0002d8400)
              /root/go/src/internal/poll/fd_unix.go:402 +0x22c
      net.(*netFD).accept(0xc0002d8400)
              /root/go/src/net/fd_unix.go:173 +0x35
      net.(*TCPListener).accept(0xc000277b60)
              /root/go/src/net/tcpsock_posix.go:140 +0x28
      net.(*TCPListener).Accept(0xc000277b60)
              /root/go/src/net/tcpsock.go:262 +0x3d
      zabbix.com/pkg/zbxcomms.(*Listener).Accept(0xc000277b78, 0xb2d05e00, 0x1)
              /root/zabbix-6.0.0beta1/src/go/pkg/zbxcomms/comms.go:308 +0x37
      zabbix.com/internal/agent/serverlistener.(*ServerListener).run(0xc000304230)
              /root/zabbix-6.0.0beta1/src/go/internal/agent/serverlistener/serverlistener.go:72 +0x167
      created by zabbix.com/internal/agent/serverlistener.(*ServerListener).Start
              /root/zabbix-6.0.0beta1/src/go/internal/agent/serverlistener/serverlistener.go:112 +0x1c7goroutine 34 [syscall, 2 minutes]:
      os/signal.signal_recv()
              /root/go/src/runtime/sigqueue.go:169 +0x98
      os/signal.loop()
              /root/go/src/os/signal/signal_unix.go:24 +0x19
      created by os/signal.Notify.func1.1
              /root/go/src/os/signal/signal.go:151 +0x2cgoroutine 5 [IO wait, 2 minutes]:
      internal/poll.runtime_pollWait(0x7f491e68e600, 0x72)
              /root/go/src/runtime/netpoll.go:234 +0x89
      internal/poll.(*pollDesc).wait(0xc00010e000, 0x0, 0x0)
              /root/go/src/internal/poll/fd_poll_runtime.go:84 +0x32
      internal/poll.(*pollDesc).waitRead(...)
              /root/go/src/internal/poll/fd_poll_runtime.go:89
      internal/poll.(*FD).Accept(0xc00010e000)
              /root/go/src/internal/poll/fd_unix.go:402 +0x22c
      net.(*netFD).accept(0xc00010e000)
              /root/go/src/net/fd_unix.go:173 +0x35
      net.(*UnixListener).accept(0x0)
              /root/go/src/net/unixsock_posix.go:167 +0x1c
      net.(*UnixListener).Accept(0xc000032060)
              /root/go/src/net/unixsock.go:260 +0x3d
      zabbix.com/internal/agent/remotecontrol.(*Conn).run(0xc00000e030)
              /root/zabbix-6.0.0beta1/src/go/internal/agent/remotecontrol/remote.go:64 +0x48
      created by zabbix.com/internal/agent/remotecontrol.(*Conn).Start
              /root/zabbix-6.0.0beta1/src/go/internal/agent/remotecontrol/remote.go:80 +0x65 

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              andris Andris Mednis
              uki Yuuki Enomoto
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                Created:
                Updated: