1SSDD(8) System Manager's Manual SSDD(8)
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6 ssdd - have a tracer do a bunch of PTRACE_SINGLESTEPs
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9 ssdd [-f|--forks NUM] [-h|--help] [-i|--iters NUM] [--json FILENAME]
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12 Have a tracer do a bunch of PTRACE_SINGLESTEPs against a tracee as fast
13 as possible. Create several of these tracer/tracee pairs and see if
14 they can be made to interfere with each other. The tracer waits on each
15 PTRACE_SINGLESTEP with a waitpid(2) and checks that waitpid's return
16 values for correctness.
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19 -f, --forks=NUM
20 number of tracer/tracee pairs to fork off.
21 Default is 10.
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23 -h, --help
24 Display usage
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26 -i, --iters=NUM
27 number of PTRACE_SINGLESTEP iterations to do before declaring
28 success, for each tracer tracee pair set up.
29 Default is 10,000.
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31 --json=FILENAME
32 Write final results into FILENAME, JSON formatted.
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35 ssdd was written by Joe Korty <joe.korty@concurrent-rt.com>
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37 This manual page was written by John Kacur <jkacur@redhat.com>
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42 September 19, 2020 SSDD(8)