NAME
pstack - print a stack trace of running processes
SYNOPSIS
pstack pid [...]
DESCRIPTION
pstack attaches to the active processes named by the pids on the
command line, and prints out an execution stack trace, including a hint
at what the function arguments are. If symbols exist in the binary
(usually the case unless you have run strip(1)), then symbolic
addresses are printed as well.
If the process is part of a thread group, then pstack will print out a
stack trace for each of the threads in the group.
RESTRICTIONS
pstack currently works only on Linux, only on an x86 machine running 32
bit ELF binaries (64 bit not supported). Also, for symbolic
information, you need to use a GNU compiler to generate your program,
and you can’t strip symbols from the binaries. For thread information
to be dumped, you have to use the debug-aware version of the
LinuxThreads libpthread.so library. (To check, run nm(1) on your
pthreads library, and make sure that the symbol
"__pthread_threads_debug" is defined.) Threads are not supported with
the newer NPTL libpthread.so library.
SEE ALSO
nm(1), ptrace(2)
AUTHORS
Ross Thompson <ross@whatsis.com>
Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>