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<title>Not all jobs can create threads; pthread_create() fails with
EBUSY</title>
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<h2>Not all jobs can create threads; pthread_create() fails with EBUSY</h2>
<p>Because many parts of the operating system are not yet thread safe, not
every job is allowed to start threads. The <strong>
pthread_create()</strong> API fails with the <strong>EBUSY</strong> error when
the process is not allowed to create threads. See <a href="293735.htm">Running
threaded programs</a> for information about how to start a job that can create
threads.</p>
<p>For details about how to determine whether thread creation is currently
allowed for your process, you can see the <strong>
pthread_getpthreadoption_np()</strong> API, option <strong>
PTHREAD_OPTION_THREAD_CAPABLE_NP</strong>.</p>
<p>See <a href="../rzahw/rzahwovepo.htm">Multithreaded applications</a>
for an introduction to threads and general API information about iSeries
threads.</p>
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