On Thu, Jun 12, 2025 at 08:02:04AM +0200, Salvatore Bonaccorso wrote:
> In commit b5325b2a270f ("coredump: hand a pidfd to the usermode coredump
> helper") a new core_pattern specifier, %F, was added to provide a pidfs
> to the usermode helper process referring to the crashed process.
>
> Update the documentation to include the new core_pattern specifier.
>
> Link: https://github.com/systemd/systemd/pull/37125
> Link: https://lwn.net/Articles/1024160/
> Signed-off-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx>
> ---
Thanks!
Just throwing a random thought out there: It would be nice if we could
optionally create a connection between a source code path/file and the
documentation directory/file in Documentation. For example, coredump
stuff is documented in Documentation/admin-guide/sysctl/kernel.rst so
there could be a line to that effect in fs/coredump.c and it creates a
warning if that file is removed.
Maybe that's dumb but it certainly would help to not miss such updates
in the future.
Christian
> Documentation/admin-guide/sysctl/kernel.rst | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
> index dd49a89a62d3..f1b2ab219a08 100644
> --- a/Documentation/admin-guide/sysctl/kernel.rst
> +++ b/Documentation/admin-guide/sysctl/kernel.rst
> @@ -177,6 +177,7 @@ core_pattern
> %E executable path
> %c maximum size of core file by resource limit RLIMIT_CORE
> %C CPU the task ran on
> + %F pidfd number
> %<OTHER> both are dropped
> ======== ==========================================
>
> --
> 2.49.0
>
