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Daniel__184907
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Jan 30, 2015

TMM - CHMAND Memory Leak (VIRT/RES)

Hi,

Late last year, we encountered an issue where an F5 had rebooted and we were able to track down the following log entry --- HA proc_running tmm fails action is go offline and down links.

According to sol12941 which seems to be a known issue for this (memory leak), the chmand process is allocated approximately 50MB of memory after a restart or reboot. Logging back into the device, the chmand memory allocation is currently set to 296m(RES)

top -p
pidof chmand
-b -n 1

top - 13:39:07 up 159 days, 8:35, 1 user, load average: 0.67, 0.76, 0.79 Tasks: 1 total, 0 running, 1 sleeping, 0 stopped, 0 zombie Cpu(s): 5.6%us, 2.5%sy, 0.0%ni, 91.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8177544k total, 8132808k used, 44736k free, 161652k buffers Swap: 1048504k total, 27888k used, 1020616k free, 180804k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND _

4645 root 15 0 371m 296m 4640 S 0.0 3.7 10:52.40 chmand

Is it normal to have the RES memory allocation increase the way it is now, beyond 50MB? At what levels should alarm bells start ringing regarding the memory being allocated to chmand (RES/VIRT)?

Thanks,

Dan

1 Reply

  • Here the output from a v11.4 VE if it's helpful in any way. I'd assume you are suffering from the bug you mention;

    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                
    5928 root      20   0 97.7m  10m 6548 S  0.0  0.3   1:18.73 chmand