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    SubjectRe: [PATCH 3.13 35/99] tty: Set correct tty name in active sysfs attribute
    On Fri, Feb 21, 2014 at 03:52:44PM +0100, Hannes Reinecke wrote:
    > On 02/21/2014 03:48 PM, Josh Boyer wrote:
    > > On Thu, Feb 20, 2014 at 6:52 PM, Greg Kroah-Hartman
    > > <gregkh@linuxfoundation.org> wrote:
    > >> 3.13-stable review patch. If anyone has any objections, please let me know.
    > >>
    > >> ------------------
    > >>
    > >> From: Hannes Reinecke <hare@suse.de>
    > >>
    > >> commit d8a5dc3033af2fd6d16030d2ee4fbd073460fe54 upstream.
    > >>
    > >> The 'active' sysfs attribute should refer to the currently active tty
    > >> devices the console is running on, not the currently active console.
    > >>
    > >> The console structure doesn't refer to any device in sysfs, only the tty
    > >> the console is running on has. So we need to print out the tty names in
    > >> 'active', not the console names.
    > >>
    > >> This resolves an issue on s390 platforms in determining the correct
    > >> console device to use.
    > >
    > > Just to be double sure this is seen, Ray points out that it breaks
    > > current plymouth because the heuristic changed. Hold off on this one?
    > >
    > Without this patch systemd won't present a login console for s390.
    > I'd prefer fixing plymouth.

    We can't break working userspace programs, sorry. I'll go revert this
    patch from the stable kernel's, and from Linus's tree as well, as we
    can't break things when 3.14 comes out either.

    I'll be glad to take a patch that does not break existing systems...

    thanks,

    greg k-h


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