ssdd.8

SSDD

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHOR

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SPDX-License-Identifier: GPL-2.0-or-later

NAME

ssdd − have a tracer do a bunch of PTRACE_SINGLESTEPs

SYNOPSIS

ssdd [-f|—forks NUM] [-h|—help] [-i|—iters NUM] [—json FILENAME]

DESCRIPTION

Have a tracer do a bunch of PTRACE_SINGLESTEPs against a tracee as fast as possible. Create several of these tracer/tracee pairs and see if they can be made to interfere with each other. The tracer waits on each PTRACE_SINGLESTEP with a waitpid(2) and checks that waitpid’s return values for correctness.

OPTIONS

−f, −−forks=NUM

number of tracer/tracee pairs to fork off.
Default is 10.

−h, −−help

Display usage

−i, −−iters=NUM

number of PTRACE_SINGLESTEP iterations to do before declaring success, for each tracer tracee pair set up.
Default is 10,000.
NUM must be at least 1

−−json=FILENAME

Write final results into FILENAME, JSON formatted.

AUTHOR

ssdd was written by Joe Korty <joe.korty@concurrent-rt.com>

This manual page was written by John Kacur <jkacur@redhat.com>

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