The branch stable/15 has been updated by olce:
URL:
https://cgit.FreeBSD.org/src/commit/?id=7140f620a5695b023e76e482dab50133479f0a0b
commit 7140f620a5695b023e76e482dab50133479f0a0b
Author: Olivier Certner <o...@freebsd.org>
AuthorDate: 2025-09-01 09:31:23 +0000
Commit: Olivier Certner <o...@freebsd.org>
CommitDate: 2025-09-18 08:50:31 +0000
jail.2: Mention EPERM is returned on open directories
The manual page does not directly mention this reason for getting EPERM,
instead referring the reader to chroot(2). We have had some questions
about it recently, in part due to a bug (fixed), and this case is not an
obvious permission/problem, so let's be more explicit.
PR: 280809
Reviewed by: jamie
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D52319
(cherry picked from commit ef2f36be8fce8cf7a62ce7d33ab1c4a181fac3e2)
---
lib/libsys/jail.2 | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/lib/libsys/jail.2 b/lib/libsys/jail.2
index d3f871608c1d..ee4e5b03d38e 100644
--- a/lib/libsys/jail.2
+++ b/lib/libsys/jail.2
@@ -23,7 +23,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd September 9, 2025
+.Dd September 15, 2025
.Dt JAIL 2
.Os
.Sh NAME
@@ -555,6 +555,9 @@ and
call
.Xr chroot 2
internally, so they can fail for all the same reasons.
+In particular, they return the
+.Bq Er EPERM
+error when the process to join a jail has open directories.
Please consult the
.Xr chroot 2
manual page for details.
