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charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: dd1252e300636b40cc10473cda8d93032e26e12c Auto-Submitted: auto-generated Date: Sun, 16 Aug 2026 02:47:18 +0000 Message-Id: <6a8124b6.437cf.149526f3@gitrepo.freebsd.org> The branch stable/15 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=dd1252e300636b40cc10473cda8d93032e26e12c commit dd1252e300636b40cc10473cda8d93032e26e12c Author: Olivier Cochard AuthorDate: 2026-07-30 14:28:42 +0000 Commit: Konstantin Belousov CommitDate: 2026-08-16 02:41:38 +0000 tests/procdesc: Fix race in pdopenpid_pdwait_only_one (cherry picked from commit 727a83e90098e1c0fc4acdcf9b8099a70e6ea2b2) --- tests/sys/kern/procdesc.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/tests/sys/kern/procdesc.c b/tests/sys/kern/procdesc.c index 541f15b49338..1feaef34e2cb 100644 --- a/tests/sys/kern/procdesc.c +++ b/tests/sys/kern/procdesc.c @@ -519,16 +519,29 @@ ATF_TC_WITHOUT_HEAD(pdopenpid_pdwait_only_one); ATF_TC_BODY(pdopenpid_pdwait_only_one, tc) { pid_t child; - int fd1, fd2, status; + int fd1, fd2, pip[2], status; + + ATF_REQUIRE_EQ(pipe(pip), 0); child = pdfork(&fd1, PD_DAEMON); ATF_REQUIRE_MSG(child >= 0, "pdfork: %s", strerror(errno)); - if (child == 0) + if (child == 0) { + char c; + + close(pip[1]); + /* Block until the parent has opened the second fd. */ + (void)read(pip[0], &c, 1); _exit(42); + } + ATF_REQUIRE(close(pip[0]) == 0); + /* Open the second fd while the child is still alive. */ fd2 = pdopenpid(child, 0); ATF_REQUIRE_MSG(fd2 >= 0, "pdopenpid: %s", strerror(errno)); + /* Release the child so that it exits. */ + ATF_REQUIRE(close(pip[1]) == 0); + /* Collect via the first fd. */ ATF_REQUIRE_MSG(pdwait(fd1, &status, WEXITED, NULL, NULL) == 0, "pdwait(fd1): %s", strerror(errno));