linux-kernel - Re: Regression in kernel 4.12-rc1 for Powerpc 32

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Message-ID: <20170621212257.GN10672@ZenIV.linux.org.uk>
Date:   Wed, 21 Jun 2017 22:22:57 +0100
From:   Al Viro <viro@...IV.linux.org.uk>
To:     Larry Finger <Larry.Finger@...inger.net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Thorsten Leemhuis <regressions@...mhuis.info>
Subject: Re: Regression in kernel 4.12-rc1 for Powerpc 32 - bisected to
 commit 3448890c32c3

On Wed, Jun 21, 2017 at 10:10:57AM -0500, Larry Finger wrote:

> I finally finished the bisection by patching each commit that was affected
> by the bootstrap crash. The faulty change is commit
> 3448890c32c32c482c3ec20baa8fdd2ab4f94cc0 ("powerpc: get rid of zeroing,
> switch to RAW_COPY_USER"). I am very confident in the bisection.
> 
> As I know nothing of assembly for ppc32, I have not been able to attempt to
> find the problem with these patches.

How about the .config that works on parent of that commit?