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We have the ability to replace the ioctl() call by a wrapper that performs signal injection (triggering the ioctl to return -EINTR). This uses a global for handling the signal, which is broken if the test tries to mixing SIGINT injection and threads. Switch to a thread-local sigaction. Cc: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com> Signed-off-by: Chris Wilson <chris.p.wilson@linux.intel.com> Signed-off-by: Kamil Konieczny <kamil.konieczny@linux.intel.com> Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>