linux-kernel - Re: [PATCH 4.19 000/170] 4.19.14-stable review

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Message-ID: <20190108182938.GA19265@roeck-us.net>
Date:   Tue, 8 Jan 2019 10:29:38 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Breno Leitao <leitao@...ian.org>, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        shuah@...nel.org, patches@...nelci.org,
        ben.hutchings@...ethink.co.uk, lkft-triage@...ts.linaro.org,
        stable@...r.kernel.org
Subject: Re: [PATCH 4.19 000/170] 4.19.14-stable review

On Tue, Jan 08, 2019 at 07:13:22PM +0100, Greg Kroah-Hartman wrote:
> On Tue, Jan 08, 2019 at 10:09:51AM -0800, Guenter Roeck wrote:
> > On Tue, Jan 08, 2019 at 06:56:40PM +0100, Greg Kroah-Hartman wrote:
> > > On Tue, Jan 08, 2019 at 09:25:03AM -0800, Guenter Roeck wrote:
> > > > On Mon, Jan 07, 2019 at 01:30:27PM +0100, Greg Kroah-Hartman wrote:
> > > > > This is the start of the stable review cycle for the 4.19.14 release.
> > > > > There are 170 patches in this series, all will be posted as a response
> > > > > to this one.  If anyone has any issues with these being applied, please
> > > > > let me know.
> > > > > 
> > > > > Responses should be made by Wed Jan  9 10:43:54 UTC 2019.
> > > > > Anything received after that time might be too late.
> > > > > 
> > > > 
> > > > Still (for v4.19.13-171-gc68ce175c3b8):
> > > > 
> > > > arch/powerpc/kernel/signal_64.c: In function ‘sys_rt_sigreturn’:
> > > > arch/powerpc/kernel/signal_64.c:761:21: error: ‘msr’ undeclared 
> > > > 
> > > > AFAICS commit 5c784c8414fba ("powerpc/tm: Remove msr_tm_active()") is missing.
> > > 
> > > Breno on this thread just said that this patch should not be applied,
> > > and another one will be submitted upstream instead to solve the problem
> > > correctly and then we can backport it.
> > > 
> > > So we can live with this build issue for now.
> > > 
> > 
> > I think you should drop the offending patch in this case. It doesn't make
> > sense to keep it - all it accomplishes is to break various builds. What is
> > the point of doing that ? Is that somehow better than living with the bug
> > it is supposed to fix ?
> 
> That's what the developers involved seem to say.
> 
That will prevent anyone affected from actually using 4.19.14, and earlier
kernels will still have the problem people are now so concerned about.
In other words, this will accomplish exactly nothig except confirm the
notion that stable releases are not well tested. I _really_ don't get
the point, sorry.

Guenter