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diff --git a/tests/sys/kern/ptrace_test.c b/tests/sys/kern/ptrace_test.c
--- a/tests/sys/kern/ptrace_test.c
+++ b/tests/sys/kern/ptrace_test.c
@@ -28,6 +28,7 @@
#include <sys/elf.h>
#include <sys/event.h>
#include <sys/file.h>
+#include <sys/mman.h>
#include <sys/time.h>
#include <sys/procctl.h>
#include <sys/procdesc.h>
@@ -4464,6 +4465,65 @@
REQUIRE_EQ(-1, prk.rk_fpid);
}
+struct child_res {
+ struct timespec sleep_time;
+ int nanosleep_res;
+ int nanosleep_errno;
+};
+
+static const long nsec = 1000000000L;
+static const struct timespec ten_sec = {
+ .tv_sec = 10,
+ .tv_nsec = 0,
+};
+static const struct timespec twelve_sec = {
+ .tv_sec = 12,
+ .tv_nsec = 0,
+};
+
+ATF_TC_WITHOUT_HEAD(ptrace__PT_ATTACH_no_EINTR);
+ATF_TC_BODY(ptrace__PT_ATTACH_no_EINTR, tc)
+{
+ struct child_res *shm;
+ struct timespec rqt, now, wake;
+ pid_t debuggee;
+ int status;
+
+ shm = mmap(NULL, sizeof(*shm), PROT_READ | PROT_WRITE,
+ MAP_SHARED | MAP_ANON, -1, 0);
+ ATF_REQUIRE(shm != MAP_FAILED);
+
+ ATF_REQUIRE((debuggee = fork()) != -1);
+ if (debuggee == 0) {
+ rqt.tv_sec = 10;
+ rqt.tv_nsec = 0;
+ clock_gettime(CLOCK_MONOTONIC_PRECISE, &now);
+ errno = 0;
+ shm->nanosleep_res = nanosleep(&rqt, NULL);
+ shm->nanosleep_errno = errno;
+ clock_gettime(CLOCK_MONOTONIC_PRECISE, &wake);
+ timespecsub(&wake, &now, &shm->sleep_time);
+ _exit(0);
+ }
+
+ /* Give the debuggee some time to go to sleep. */
+ sleep(2);
+ REQUIRE_EQ(ptrace(PT_ATTACH, debuggee, 0, 0), 0);
+ REQUIRE_EQ(waitpid(debuggee, &status, 0), debuggee);
+ ATF_REQUIRE(WIFSTOPPED(status));
+ REQUIRE_EQ(WSTOPSIG(status), SIGSTOP);
+
+ REQUIRE_EQ(ptrace(PT_DETACH, debuggee, 0, 0), 0);
+ REQUIRE_EQ(waitpid(debuggee, &status, 0), debuggee);
+ ATF_REQUIRE(WIFEXITED(status));
+ REQUIRE_EQ(WEXITSTATUS(status), 0);
+
+ ATF_REQUIRE(shm->nanosleep_res == 0);
+ ATF_REQUIRE(shm->nanosleep_errno == 0);
+ ATF_REQUIRE(timespeccmp(&shm->sleep_time, &ten_sec, >=));
+ ATF_REQUIRE(timespeccmp(&shm->sleep_time, &twelve_sec, <=));
+}
+
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, ptrace__parent_wait_after_trace_me);
@@ -4532,6 +4592,7 @@
ATF_TP_ADD_TC(tp, ptrace__procdesc_reparent_wait_child);
ATF_TP_ADD_TC(tp, ptrace__PT_SC_REMOTE_getpid);
ATF_TP_ADD_TC(tp, ptrace__reap_kill_stopped);
+ ATF_TP_ADD_TC(tp, ptrace__PT_ATTACH_no_EINTR);
return (atf_no_error());
}

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