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    SubjectRe: [PATCH v2] printk: Add kernel parameter to disable writes to /dev/kmsg
    On Mon, Apr 25, 2016 at 12:18:15PM -0700, Greg Kroah-Hartman wrote:
    > On Mon, Apr 25, 2016 at 09:06:51PM +0200, Peter Zijlstra wrote:
    > > On Mon, Apr 25, 2016 at 02:56:06PM -0400, Steven Rostedt wrote:
    > > > +static bool __read_mostly devkmsg_disabled;
    > > > +static int __init disable_devkmsg(char *str)
    > > > +{
    > > > + devkmsg_disabled = true;
    > > > + return 0;
    > > > +}
    > > > +__setup("printk.disable_kmsg_write", disable_devkmsg);
    > >
    > > Again, please default enable and use an easier name to toggle this.
    > > Userspace flooding this with junk is really insane.
    >
    > If you default enable, you break working systems today that want to log
    > stuff through this interface, sorry.

    Oh, you mean those 'working' systems that livelocked my box because I
    had console to serial enabled which could not keep up with the endless
    flood of shite?

    This systemd exposure has seriously eroded your sanity.

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