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

This commit is contained in:

Konstantin Belousov

2025-04-16 18:02:58 +03:00

parent a6b7d5cdda

commit 1f8d845d1c

1 changed files with 4 additions and 1 deletions

									
										tests/sys/kern/ptrace_test.c
									
		+4
		-1
	
												View File
												
				@@ -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;