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From: Greg KH <gregkh@linuxfoundation.org>
To: Kai Lueke <kailueke@linux.microsoft.com>
Cc: stable@vger.kernel.org
Subject: Re: xfrm regression in 5.10.94
Date: Tue, 1 Mar 2022 20:38:21 +0100	[thread overview]
Message-ID: <Yh52LSGjBz+yF/HO@kroah.com> (raw)
In-Reply-To: <e8d57c20-56f8-f457-1db5-e6d5ed9618b6@linux.microsoft.com>

On Tue, Mar 01, 2022 at 05:34:00PM +0100, Kai Lueke wrote:
> Hi,
> > Why is 5.10 special and newer kernels are not?  This change shows up for
> > them, right?  Either this is a regression for all kernel releases and
> > needs to be resolved, or it is ok for any kernel release.
> >
> > Please work with the networking developers to either resolve the
> > regression of determine what needs to be done here for userspace to work
> > properly.
> 
> I agree, thanks. I tried it
> (https://marc.info/?t=164607426900002&r=1&w=2) and got this response
> from Steffen Klassert now:
> 
> > In general I agree that the userspace ABI has to be stable, but
> > this never worked. We changed the behaviour from silently broken to
> > notify userspace about a misconfiguration.
> >
> > It is the question what is more annoying for the users. A bug that
> > we can never fix, or changing a broken behaviour to something that
> > tells you at least why it is not working.
> >
> > In such a case we should gauge what's the better solution. Here
> > I tend to keep it as it is.
> (https://marc.info/?l=linux-netdev&m=164615098503579&w=2)
> 
> Given it's unlikely to have this reverted in general I personally think
> that reverting for the LTS kernels makes sense at least...

Again, there is nothing "special" about LTS kernels for stuff like this.
It's fixing a bug that the kernel developers wanted to have fixed, and
so it gets backported everywhere relevant.

If I were to somehow "wait" on taking this, it's only delaying your
fixes from ever happening :)

thanks,

greg k-h

      reply	other threads:[~2022-03-01 19:38 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-28 12:22 xfrm regression in 5.10.94 Kai Lüke
2022-02-28 17:16 ` Greg KH
2022-03-01 16:34   ` Kai Lueke
2022-03-01 19:38     ` Greg KH [this message]

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