There is somehow no description of %c corename format specifier for /proc/sys/kernel/core_pattern. The %c corename format specifier is used by user-space application such as systemd-coredump, so it should be documented. To find where %c is handled in the kernel source code, look at function format_corename() in fs/coredump.c. Signed-off-by: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxx> --- 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 def0748..4557907 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -213,6 +213,7 @@ core_pattern is used to specify a core dumpfile pattern name. %h hostname %e executable filename (may be shortened) %E executable path + %c maximum size of core file by resource limit RLIMIT_CORE %<OTHER> both are dropped * If the first character of the pattern is a '|', the kernel will treat -- 1.8.3.1