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

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Message-ID: <1547130295@msgid.manchmal.in-ulm.de>
Date:   Thu, 10 Jan 2019 15:42:06 +0100
From:   Christoph Biedl <linux-kernel.bfrz@...chmal.in-ulm.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Breno Leitao <leitao@...ian.org>,
        Guenter Roeck <linux@...ck-us.net>,
        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

Greg Kroah-Hartman wrote...

> I dropped e1c3743e1a20 ("powerpc/tm: Set MSR[TS] just prior to recheckpoint")
> from the stable trees, which is what I was told was the commit that was
> causing the problems by Christoph and Breno (on to: now).
>
> Was that not the offending commit?  If so, what one was?
>
> totally confused,

Sorry for not getting back to you earlier. Building yesterday's
release (v4.19.14) *failed*, bisect led to

| commit a9935a12768851762089fda8e5a9daaf0231808e (HEAD)
| Author: Breno Leitao <leitao@...ian.org>
| Date:   Mon Nov 26 18:12:00 2018 -0200
|
|     powerpc/tm: Unset MSR[TS] if not recheckpointing

Reverting that commit seems to be sufficient, build passes then.

Additionally, neither 4.20 nor 5.0-rc1 show this problem. The
| commit 6f5b9f018f4c7686fd944d920209d1382d320e4e upstream.
builds as well, so I'll try to find the missing prerequisite next.

An example .config is attached.

    Christoph

View attachment ".config" of type "text/plain" (57834 bytes)