debugging - No "walkers" in mdb (Solaris modular debugger) -

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every , use mdb debugger examine core dumps on solaris. 1 nice article looked @ speed on possibilities mdb http://blogs.oracle.com/ace/entry/mdb_an_introduction_drilling_sigsegv author performs step-by-step examination of sigsegv crash. in article author uses "walkers" kind of add-on mdb can perform specific tasks.

my problem don't have of walkers in mdb. using "::walkers" command, walkers available can listed , list empty. question is, how can install/add/load walkers such ones used in above article? don't know supposed loaded from, if have download , add them somewhere or if it's configuration step when installing solaris?

mdb automatically loads walkers , dcmds appropriate you're debugging, /usr/lib/mdb , similar directories (see mdb(1) details). if run "mdb" itself, you'll nothing. if run "mdb" on userland process or core dump (e.g., "mdb $$"), you'll walkers , dcmds appropriate userland debugging. if run "mdb" on kernel (e.g., "mdb -k"), you'll walkers , dcmds kernel debugging.


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