Processes Cannot Being Killed by Command 'kill -9' (Doc ID 1133314.1)

Last updated on JUNE 19, 2017

Applies to:

Linux OS - Version 2.6.9-67.0.22.EL and later
Linux x86-64
Linux x86

Symptoms

Not able to kill few processes using "kill -9" command.


For example:
You can see some processes' state(header "STAT" or "S") is 'D' in 'ps -ef' command result.

# ps -elf | grep D
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
4 D root 15146 8525 0 76 0 - 5480 - Jun11 ? 00:00:00 /opt/OV/lbin/perf/coda
4 D root 20532 1 0 75 0 - 43490 - 2009 ? 00:10:16 /opt/OV/lbin/perf/coda


You can not kill these processes with 'kill -9' command.

# kill -9 15146
# ps -ef | grep 15146
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
4 D root 15146 8525 0 76 0 - 5480 - Jun11 ? 00:00:00 /opt/OV/lbin/perf/coda

Cause

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