linux-kernel - Re: [PATCH 000/190] Revertion of all of the umn.edu commits

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Date:   Wed, 21 Apr 2021 17:09:45 +0200 (CEST)
From:   Jiri Kosina <jikos@...nel.org>
To:     Kangjie Lu <kjlu@....edu>
cc:     Guenter Roeck <linux@...ck-us.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Aditya Pakki <pakki001@....edu>, Qiushi Wu <wu000273@....edu>,
        x86@...nel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...ux.ie>,
        Michael Turquette <mturquette@...libre.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Jean Delvare <jdelvare@...e.com>,
        Will Deacon <will@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Johan Hovold <johan@...nel.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Johannes Berg <johannes@...solutions.net>,
        Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH 000/190] Revertion of all of the umn.edu commits

On Wed, 21 Apr 2021, Kangjie Lu wrote:

> > Therefore I'd like to ask Kangjie Lu (who is CCed here) to consider
> > revising his statement in the attempted public clarification:
> >
> >         "The experiment did not introduce any bug or bug-introducing
> > commit into
> >          OSS."
> >
> > at [1] as it's clearly not true. Missing mutex unlock clearky is a bug
> > introduced by this experiment.
> >
> 
> Hi everyone,
> 
> I am so sorry for the concerns. I fully understand why the community is
> angry. Please allow me to have a very quick response, as Jiri requested. We
> will provide a detailed explanation later.

Thanks.

> These are two different projects. The one published at IEEE S&P 2021 has
> completely finished in November 2020. 

What about 8a94644b440 then? It's from May 2020, it has been committed to 
the tree, and it introduces a NULL pointer dereference on 
kobject_init_and_add() failure.

-- 
Jiri Kosina
SUSE Labs