Messages in this thread |  | | From | John Ogness <> | | Subject | Re: [RFC 1/2] printk: Add kernel parameter: mute_console | | Date | Thu, 22 Oct 2020 15:16:19 +0206 |
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On 2020-10-22, Petr Mladek <pmladek@suse.com> wrote: > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 02d4adbf98d2..52b9e7f5468d 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -2974,6 +2974,12 @@ > Used for mtrr cleanup. It is spare mtrr entries number. > Set to 2 or more if your graphical card needs more. > > + mute_console [KNL] > + Completely disable printing of kernel messages to > + the console. It can still be used as stdin, stdout, > + and stderr for the init process. Also it can be used > + for login.
IMHO it would make more sense for this to be a console option:
console=ttyS0,115200,mute
Then other consoles could still exist that are not muted.
On a side note, I am considering proposing something similar for my printk-rework efforts. Once console printers are moved to kthreads, some users may not care about latencies and instead prefer synchronous printing. My idea for this is to provide a "sync" option for the console:
console=ttyS0,115200,sync
John Ogness
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