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

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Message-ID: <20180510153658.GE98604@atomide.com>
Date:   Thu, 10 May 2018 08:36:58 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     "Theodore Y. Ts'o" <tytso@....edu>,
        Sasha Levin <Alexander.Levin@...rosoft.com>,
        Greg KH <gregkh@...uxfoundation.org>, "w@....eu" <w@....eu>,
        "ksummit-discuss@...ts.linuxfoundation.org" 
        <ksummit-discuss@...ts.linuxfoundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [Ksummit-discuss] bug-introducing patches

* Tony Lindgren <tony@...mide.com> [180508 14:52]:
> * Theodore Y. Ts'o <tytso@....edu> [180508 03:50]:
> > Would I pull down linux-next, and fire up a VM running gce-xfstests?
> > Sure.  But that's not a real-life use case; that's just running canned
> > test cases.  And more often than not, linux-next will be broken while
> > Linus's -rcX tree is just fine; which is why I do most of my ext4
> > testing using patches based on top of -rcX, not based on top of
> > linux-next.
> 
> Ideally we would somehow always end up with an -rc1 that people dare
> to use though for the "prosumer" testing :)

BTW, the reason why I think we all should test Linux next on regular
basis is that it's often "some other people's branches(tm)" that cause
the regressions :) Maybe because their own test cases did not show
any regressions, or because they were unable to test the patches.
Or it's because of some "clean-up" work that's completely untested
on some systems.

And that's how we end up with regressions getting merged into -rc1.

Regards,

Tony