Re: Question about the maintenance of OOT RT patches for LTS releases (v12.x and v18.x)

["Luis Claudio R. Goncalves" <lgoncalv@redhat.com>]

On Thu, Aug 20, 2026 at 04:23:14PM +0200, Sebastian Andrzej Siewior wrote:
> On 2026-08-19 11:30:11 [-0500], Bryan Brattlof wrote:
> > > I did assume we have v6.18 in maintenance but somehow it skipped. *I*
> > > usually skip updates if there are no clashes and nothing changes.
> > 
> > Did we decide to skip v6.18 ? There are a few people internally asking 
> > me for a roadmap again with some guidance on the lifetime of the branch.
> 
> As of v6.18.45 the v6.18.37-rt6 applies as-is. Winthin the git tree, the
> stable tree tag can be merged. Does this work?

There seems to be a conflict when applying the 8250 nbcon patches. IIRC you
fixed that conflict (or something quite close to that) on v7.1-rc.

The conflict:

$ git checkout -b test01 v6.18.37-rt6
$ git rebase -v v6.18.45
  Changes from 0c503cf3dde2e53614f05261ece12f9d3d4c3c20 to bf3be28f6721e24961992ebb9e61c0cf21a56806:
  ...
  Rebasing (1/29)
  dropping bea58d7ab5ba4367a3208ecd1854a74b66b21f51 net: gro_cells: fix lock imbalance in gro_cells_receive() -- patch contents already upstream
  Rebasing (2/29)
  Auto-merging drivers/tty/serial/8250/8250_port.c
  CONFLICT (content): Merge conflict in drivers/tty/serial/8250/8250_port.c
  Auto-merging include/linux/serial_8250.h
  error: could not apply 0b053910fa95... Reapply "serial: 8250: Switch to nbcon console"

Bryan, is this the problem you are seeing?

Luis

> 
> > ~Bryan
> 
> Sebastian
> 
---end quoted text---