1.5.4 system.cpu.util on linux agent crashes

[robertmcox]

So I upgraded to 1.5.4 (from 1.5.3) today and found a couple issues that were already resolved by others on the forum (thank you guys!). But I did find another issue:

After upgrading the linux agent to 1.5.4 (on CentOS 5.1), the agent will crash if I have an item for 'system.cpu.util[,idle,avg1]'. It does not matter whether the check is active or passive. I also verified that agent 1.5.3 does NOT have this problem, and downgrading is my current workaround for the issue.

/tmp/zabbix_agent.log:

  8172:20080824:183418 In send_buffer('127.0.0.1','10051')
  8172:20080824:183418 Values in the buffer 6 Max 100
  8172:20080824:183418 Will not send now. Now 1219602858 lastsent 1219602854 < 5
  8172:20080824:183418 Sleeping for 1 seconds
  8169:20080824:183419 Processing request.
  8169:20080824:183419 In check_security()
  8169:20080824:183419 Requested [system.cpu.util[all,idle,avg1]]
  8167:20080824:183419 One child process died. Exiting ...
  8167:20080824:183419 zbx_on_exit() called.
  8172:20080824:183419 Got signal. Exiting ...
  8170:20080824:183419 Got signal. Exiting ...
  8171:20080824:183419 Got signal. Exiting ...
  8168:20080824:183419 Got signal. Exiting ...
  8167:20080824:183421 ZABBIX Agent stopped. ZABBIX 1.5.4.

I compiled using:

make clean
./configure --enable-agent --prefix=/opt/zabbix --enable-static
make install

The In check_security() concerns me. Although I have not changed any permissions nor performed any package updates before or after upgrading, I have hardened the system(s) by changing permissions on certain system binaries and paths from the defaults. My zabbix_agentd runs as the user 'zabbix'.

If noone else has this same issue with the new agent, could someone enlighten me as to what "security checks" are new in 1.5.4?

[AlienBrew]

I got the same issue on a fedora system.

The solution was as above to downgrade the agent.

[disgruntleddutch]

Having the same problem with 1.5.4

 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vfs.fs.size[/,used]]
 19978:20080909:231238 Sending back [15539576]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [vfs.fs.size[/,free]]
 19979:20080909:231238 Sending back [227427252]
 19980:20080909:231238 Processing request.
 19980:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.inode[/usr,free]]
 19980:20080909:231238 Sending back [62613896]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vfs.fs.inode[/opt,pfree]]
 19978:20080909:231238 Sending back [99.834089]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [vfs.fs.size[/,pfree]]
 19979:20080909:231238 Sending back [93.604240]
 19980:20080909:231238 Processing request.
 19980:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.size[/tmp,free]]
 19980:20080909:231238 Sending back [227427252]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vm.memory.size[free]]
 19978:20080909:231238 Sending back [9046278144]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19980:20080909:231238 Processing request.
 19979:20080909:231238 Requested [vfs.fs.size[/opt,used]]
 19980:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.size[/home,free]]
 19979:20080909:231238 Sending back [15539576]
 19980:20080909:231238 Sending back [227427252]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vfs.fs.size[/home,pfree]]
 19978:20080909:231238 Sending back [93.604238]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [net.tcp.service[pop]]
 19979:20080909:231238 TCP expect error: Cannot connect to [127.0.0.1:110] [Connection refused]
 19979:20080909:231238 Sending back [0]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [vfs.fs.size[/var,free]]
 19979:20080909:231238 Sending back [30602136]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vm.memory.size[shared]]
 19978:20080909:231238 Sending back [0]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [vfs.fs.size[/usr,free]]
 19979:20080909:231238 Sending back [227427252]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [net.if.out[lo,bytes]]
 19978:20080909:231238 Sending back [2499423]
 19980:20080909:231238 Processing request.
 19980:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.size[/usr,used]]
 19980:20080909:231238 Sending back [15539576]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [vm.memory.size[buffers]]
 19979:20080909:231238 Sending back [235102208]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [net.if.in[eth1,bytes]]
 19980:20080909:231238 Processing request.
 19980:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.size[/opt,pused]]
 19978:20080909:231238 Sending back [0]
 19980:20080909:231238 Sending back [6.395760]
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19979:20080909:231238 Requested [net.if.in[lo,bytes]]
 19979:20080909:231238 Sending back [2502522]
 19978:20080909:231238 Processing request.
 19978:20080909:231238 In check_security()
 19978:20080909:231238 Requested [vfs.fs.size[/usr,pfree]]
 19978:20080909:231238 Sending back [93.604240]
 19980:20080909:231238 Processing request.
 19980:20080909:231238 In check_security()
 19979:20080909:231238 Processing request.
 19979:20080909:231238 In check_security()
 19980:20080909:231238 Requested [vfs.fs.size[/tmp,used]]
 19979:20080909:231238 Requested [net.if.in[eth0,bytes]]
 19979:20080909:231238 Sending back [2239753339]
 19980:20080909:231238 Sending back [15539580]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [vfs.fs.size[/tmp,pfree]]
 19978:20080909:231239 Sending back [93.604238]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [vfs.fs.size[/tmp,pused]]
 19979:20080909:231239 Sending back [6.395760]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [vfs.fs.size[/var,pused]]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [vfs.fs.size[/home,used]]
 19980:20080909:231239 Sending back [5.842445]
 19978:20080909:231239 Sending back [15539576]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [vfs.fs.size[/usr,pused]]
 19979:20080909:231239 Sending back [6.395765]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [vfs.fs.size[/,pused]]
 19980:20080909:231239 Sending back [6.395760]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [vfs.fs.size[/var,pfree]]
 19978:20080909:231239 Sending back [94.157555]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [vfs.fs.size[/opt,pfree]]
 19979:20080909:231239 Sending back [93.604240]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [vfs.fs.size[/opt,free]]
 19979:20080909:231239 Sending back [227427252]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [vm.memory.size[cached]]
 19980:20080909:231239 Sending back [21334712320]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [proc.num[,,run]]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [net.tcp.service[imap]]
 19978:20080909:231239 TCP expect error: Cannot connect to [127.0.0.1:143] [Connection refused]
 19978:20080909:231239 Sending back [0]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [vfs.fs.size[/var,used]]
 19980:20080909:231239 Sending back [1898852]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [proc.num[sshd]]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [net.tcp.service[http]]
 19980:20080909:231239 Sending back [1]
 19979:20080909:231239 Sending back [4]
 19978:20080909:231239 Sending back [1]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [vfs.fs.inode[/usr,pfree]]
 19980:20080909:231239 Sending back [99.834089]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [vfs.fs.inode[/home,pfree]]
 19979:20080909:231239 Sending back [99.834089]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [net.tcp.service[nntp]]
 19978:20080909:231239 TCP expect error: Cannot connect to [127.0.0.1:119] [Connection refused]
 19978:20080909:231239 Sending back [0]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [net.tcp.service[ssh]]
 19979:20080909:231239 Processing request.
 19979:20080909:231239 In check_security()
 19979:20080909:231239 Requested [proc.num[inetd]]
 19980:20080909:231239 Sending back [1]
 19979:20080909:231239 Sending back [0]
 19978:20080909:231239 Processing request.
 19978:20080909:231239 In check_security()
 19978:20080909:231239 Requested [proc.num[zabbix_server]]
 19978:20080909:231239 Sending back [302]
 19980:20080909:231239 Processing request.
 19980:20080909:231239 In check_security()
 19980:20080909:231239 Requested [system.cpu.util[,user,avg1]]
 19975:20080909:231239 One child process died. Exiting ...
 19979:20080909:231239 Got signal. Exiting ...
 19977:20080909:231239 Got signal. Exiting ...
 19978:20080909:231239 Got signal. Exiting ...
 19975:20080909:231239 zbx_on_exit() called.
 19981:20080909:231239 Got signal. Exiting ...
 19975:20080909:231241 ZABBIX Agent stopped. ZABBIX 1.5.4.

[disgruntleddutch]

I should note that this is only happening on RHEL5 based systems, not RHEL4 (at least so far).

[Daniel Carnevalli]

I have the same problem with Fedora 9 and RedHat 5.1

[Alexei]

What? 1.5.x? These are beta releases!