On Thu, 10 Dec 2020 16:21:34 +0800 Fengfei Xi <xi.fengfei@xxxxxxx> wrote: > Since the default value of sysctl_max_map_count is defined as > DEFAULT_MAX_MAP_COUNT from mm/util.c > > int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; > > DEFAULT_MAX_MAP_COUNT is defined as 65530 (65535-5) in include/linux/mm.h > > #define MAPCOUNT_ELF_CORE_MARGIN (5) > #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) > > Signed-off-by: Fengfei Xi <xi.fengfei@xxxxxxx> > --- > Documentation/admin-guide/sysctl/vm.rst | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst > index f455fa00c..834c3fc74 100644 > --- a/Documentation/admin-guide/sysctl/vm.rst > +++ b/Documentation/admin-guide/sysctl/vm.rst > @@ -428,7 +428,7 @@ While most applications need less than a thousand maps, certain > programs, particularly malloc debuggers, may consume lots of them, > e.g., up to one or two maps per allocation. > > -The default value is 65536. > +The default value is 65530. Applied, thanks. jon
