On Sun, 5 Mar 2023 at 23:17, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > I looked at this again. It's not a limit on the number of kernel command line > parameters AFAICT. It's a limit on the number of parameters that are passed to > the init process. Basically any parameter that is not recognized as a kernel > parameter OR anything that is after "--" on the kernel command line is put into > an array of limited size for passing to the init process. Ah: that completely explains it, thank you; my testing was inadequete. I had been testing this using fairly-arbitrary (and therefore unrecognized) parameter names, so it is expected and correct that when the number of those exceeds MAX_INIT_ARGS, the kernel does not boot. For completeness I'll perform similar testing soon using known-parameter names.
