Re: [PATCH net v2] ipv6: fix a BUG in rt6_get_pcpu_route() under PREEMPT_RT

[Steven Rostedt]

On Mon, 22 Dec 2025 12:16:39 -0500
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> On Mon, 22 Dec 2025 09:50:58 +0100
> Eric Dumazet <edumazet@xxxxxxxxxx> wrote:
> 
> > > Link: https://syzkaller.appspot.com/bug?extid=9b35e9bc0951140d13e6
> > > Fixes: 951f788a80ff ("ipv6: fix a BUG in rt6_get_pcpu_route()")    
> > 
> > I would rather find when PREEMPT_RT was added/enabled, there is no
> > point blaming such an old commit
> > which was correct at the time, and forcing pointless backports to old
> > linux kernels.  
> 
> Ack!

Fixes: d2d6422f8bd1 ("x86: Allow to enable PREEMPT_RT.")

That was the first commit to enable PREEMPT_RT on any architecture (just
happened to be x86).

-- Steve