linux-kernel - Re: WARNING: ODEBUG bug in vudc

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Message-ID: <CACT4Y+aj8cmoBjBt==9y=NCThOrntadAghsgMx2gBFGpD8B8VQ@mail.gmail.com>
Date:   Fri, 15 Mar 2019 09:27:51 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     shuah <shuah@...nel.org>
Cc:     Valentina Manea <valentina.manea.m@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        USB list <linux-usb@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: WARNING: ODEBUG bug in vudc_probe

On Thu, Mar 14, 2019 at 6:15 PM shuah <shuah@...nel.org> wrote:
>
> Hi Dmitry,
>
> On 3/11/19 8:18 AM, Dmitry Vyukov wrote:
> > On Mon, Mar 11, 2019 at 3:16 PM Dmitry Vyukov <dvyukov@...gle.com> wrote:
> >>
>
> >>
> >> The boot seems to be fixed now, but what commit fixed it?
> >>
> >> This bug makes all kernels starting from 4.14 unbootable for the
> >> purposes of bisection. If we figure out what was the bug and what
> >> fixed it, we can think of possible ways of unbreaking kernel boot.
> >
> >
>
>
> Upstream commit:
> commit e28fd56ad5273be67d0fae5bedc7e1680e729952
>
> 4.14.81 commit:
>
> commit 255624a35b4ca228bac9a1f135263e28c27c4640
>
> Please let me know if you are still seeing the problem. I will start
> looking at it.

Hi Shuah,

Thanks for info.
No, I don't see the problem at head. I am seeing the problem when
trying to do bisection and trying to figure out some practical way of
doing it.