Topics: AIX, System Admin

Truss

To get more information on what a specific process is doing, you can get the truss command. That may be very useful, for example when a process appears to be hanging.

For example, if you want to know what the "recover" process is doing, first look up the PID of this process: 

# ps -ef | grep -i recover | grep -v grep
root 348468 373010   0 17:30:25  pts/1  0:00 recover -f -a /etc
Then, run the truss command using that PID: 
cscnimmaster# truss -p 348468
kreadv(0, 0x00000000, 0, 0x00000000) (sleeping...)
This way, you can see the process is actually sleeping.



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