Petr Mladek wrote: > It might be even more straightforward when the per-console value > defines the effective console level. I mean the following semantic: > > + "console_loglevel" would define the default loglevel used > by consoles at runtime. > > + the per-console loglevel could override the default > console_loglevel. > > + We would need a custom handler for the sysctl "console_loglevel". > It would write the given value to the global console_loglevel > variable and for all already registered consoles (con->loglevel). But some functions change console_loglevel without sysctl (e.g. console_verbose() when reporting hung tasks and panic()). Should con->loglevel be changed (which might result in too much messages to slow consoles) when console_loglevel changes? > > The value will be used also for all newly registered consoles > when they do not have any custom one. > > > + The handler for "loglevel" early param should behave the same > as the sysctl handler. > > > IMHO, there is no perfect solution. The advantage of the above > proposal is that you "see" and "use" exactly what you "set".
