Question

how to view stack and state of all threads of a running process on AIX machine.
the command or tool like pstack on linux should also help..

i tried procstack, but didnt help. it does not show any stack to me. and no error though..

any ideas..?

is procstack require all executables and libraries associated with process compiled with debig info?

thanks.

Answer 1

Here is a script I wrote using dbx to print the stack of all threads of the given process id. Hope this helps, worked like a charm for me on aix

if [ $# -ne 1 ]
then
   echo "Usage dbxstack <processid>";
   exit;
fi

rm -rf printthreads.fordbx

echo "thread" >> printthreads.fordbx
echo "detach" >> printthreads.fordbx
echo "quit" >> printthreads.fordbx

dbx -a $1 -c printthreads.fordbx > threads.tempdbx 2>/dev/null
awk '$1 ~ /\$t/ { print $1 }' threads.tempdbx | sed s/\$t//g | sed s/\>//g > threadsids.tempdbx

rm -rf printthreads.fordbx
for i in `cat threadsids.tempdbx`
do
   echo "print \"------------------------\"" >> printthreads.fordbx
   echo "thread current $i" >> printthreads.fordbx
   echo "where" >> printthreads.fordbx
   echo "print \"---------tid $i---------\"" >> printthreads.fordbx
   i=$(( $i+1 ));
   echo $i;
done
echo "detach" >> printthreads.fordbx
echo "quit" >> printthreads.fordbx

dbx -a $1 -c printthreads.fordbx > $1.stacktrace 2> $1.stacktracerr

rm -rf threads.tempdbx threadsids.tempdbx printthreads.fordbx