Hi Michael, On Tue, Jan 07, 2025 at 02:57:00PM +0100, Michal Clapinski wrote: > Only singlethreaded processes can setns into time ns. > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/kernel/time/namespace.c?h=v6.12#n309 > > Signed-off-by: Michal Clapinski <mclapinski@xxxxxxxxxx> Thanks for the patch! I have slightly adapted the commit message, and applied the patch. <https://www.alejandro-colomar.es/src/alx/linux/man-pages/man-pages.git/commit/?h=contrib&id=48618d7701d55ca9401b259bb4e6200d841df6d0> Cheers, Alex > --- > man/man2/setns.2 | 12 +++++++++++- > 1 file changed, 11 insertions(+), 1 deletion(-) > > diff --git a/man/man2/setns.2 b/man/man2/setns.2 > index f32a91bd8..619717b77 100644 > --- a/man/man2/setns.2 > +++ b/man/man2/setns.2 > @@ -237,7 +237,17 @@ Using > to change the caller's cgroup namespace does not change > the caller's cgroup memberships. > .TP > -Network, IPC, time, and UTS namespaces > +Time namespaces > +In order to reassociate itself with a new time namespace, > +the caller must have the > +.B CAP_SYS_ADMIN > +capability both in its own user namespace and in the user namespace > +that owns the target namespace. > +.IP > +A multithreaded process may not change time namespace with > +.BR setns (). > +.TP > +Network, IPC, and UTS namespaces > In order to reassociate itself with a new network, IPC, time, or UTS namespace, > the caller must have the > .B CAP_SYS_ADMIN > -- > 2.47.1.613.gc27f4b7a9f-goog > -- <https://www.alejandro-colomar.es/>
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