Upstream was changed:
https://gitlab.com/procps-ng/procps/-/blob/master/pgrep.c long cmdlen = get_arg_max() * sizeof(char); where get_arg_max is defined as: /* * SC_ARG_MAX used to return the maximum size a command line can be * however changes to the kernel mean this can be bigger than we can * alloc. Clamp it to 128kB like xargs and friends do * Should also not be smaller than POSIX_ARG_MAX which is 4096 */ static size_t get_arg_max(void) { #define MIN_ARG_SIZE 4096u #define MAX_ARG_SIZE (128u * 1024u) size_t val = sysconf(_SC_ARG_MAX); if (val < MIN_ARG_SIZE) val = MIN_ARG_SIZE; if (val > MAX_ARG_SIZE) val = MAX_ARG_SIZE; return val; } Was added 1 year ago:https://gitlab.com/procps-ng/procps/-/commit/bb96fc42956c9ed926a1b958ab715f8b4a663dec