linux-kernel - Re: [Ksummit-discuss] bug-introducing patches

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Message-ID: <20180503160046.GH23311@1wt.eu>
Date:   Thu, 3 May 2018 18:00:46 +0200
From:   Willy Tarreau <w@....eu>
To:     Sasha Levin <Alexander.Levin@...rosoft.com>
Cc:     "Theodore Y. Ts'o" <tytso@....edu>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "ksummit-discuss@...ts.linuxfoundation.org" 
        <ksummit-discuss@...ts.linuxfoundation.org>
Subject: Re: [Ksummit-discuss] bug-introducing patches

On Thu, May 03, 2018 at 03:01:08PM +0000, Sasha Levin wrote:
> On Thu, May 03, 2018 at 04:52:05PM +0200, Willy Tarreau wrote:
> >I wouldn't be much surprised if you'd find that among those not introduced
> >in the current merge window, many were introduced in the previous release.
> 
> Interesting. Here it is for v4.16-rcX fixes that fix something
> introduced before v4.14:
> 
> rc1 30
> rc2 87
> rc3 51
> rc4 68
> rc5 23
> rc6 113
> rc7 61
> 
> So I'm not sure if what you described is really the case.

This is rather interesting and probably deserves some analysis or
explanation. I agree that probably a number of the 61 fixes in rc7
could have cooked a little bit more if they fixed 5 months-old bugs.

Willy