git: 1f8d845d1cdf - main - ptrace_test PT_SC_REMOTE: fix a race

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=1f8d845d1cdfeaefa539df5f6f33bec3da65152c

commit 1f8d845d1cdfeaefa539df5f6f33bec3da65152c
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-04-16 15:02:58 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2025-04-17 20:33:47 +0000

    ptrace_test PT_SC_REMOTE: fix a race
    
    Only one of PT_TRACE_ME/PT_ATTACH is needed.  Having them both causes
    the race between parent and child on the attachment way.
    
    Reviewed by:    markj
    Sponsored by:   The FreeBSD Foundation
    MFC after:      2 weeks
    Differential revision:  https://reviews.freebsd.org/D49678
---
 tests/sys/kern/ptrace_test.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tests/sys/kern/ptrace_test.c b/tests/sys/kern/ptrace_test.c
index db681293f043..de411af6bc40 100644
--- a/tests/sys/kern/ptrace_test.c
+++ b/tests/sys/kern/ptrace_test.c
@@ -4378,7 +4378,10 @@ ATF_TC_BODY(ptrace__PT_SC_REMOTE_getpid, tc)
 		exit(0);
 	}
 
-	attach_child(fpid);
+	wpid = waitpid(fpid, &status, 0);
+	REQUIRE_EQ(wpid, fpid);
+	ATF_REQUIRE(WIFSTOPPED(status));
+	REQUIRE_EQ(WSTOPSIG(status), SIGSTOP);
 
 	pscr.pscr_syscall = SYS_getpid;
 	pscr.pscr_nargs = 0;