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    SubjectRe: [PATCH RESEND v3 0/5] media: uvcvideo: Fix race conditions
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    On 3/11/21 11:36 PM, Dominique MARTINET wrote:
    > Hi,
    >
    > Guenter Roeck wrote on Thu, Sep 17, 2020 at 07:16:17PM -0700:
    >> On 9/17/20 5:47 AM, Laurent Pinchart wrote:
    >>> On Wed, Sep 16, 2020 at 07:25:42PM -0700, Guenter Roeck wrote:
    >>>> Something seems to have gone wrong with v3 of this patch series.
    >>>> I am sure I sent it out, but I don't find it anywhere.
    >>>> Resending. Sorry for any duplicates.
    >>>
    >>> I haven't checked the mailing list, but I've found it in my inbox :-)
    >>> I'm not forgetting about you, just been fairly busy recently. I still
    >>> plan to try and provide an alternative implementation in the V4L2 core
    >>> (in a form that I think should even be moved to the cdev core) that
    >>> would fix this for all drivers.
    >>>
    >> Thanks for letting me know. As it turns out, this problem is responsible
    >> for about 2% of all Chromebook crashes, so I'll probably not wait for
    >> the series to be accepted upstream but apply it as-is to the various
    >> ChromeOS kernel branches.
    >
    > We have a customer who reported the same issue recently, has there been
    > any development?
    >

    Not that I know of. We applied the series to all Chrome OS kernel branches,
    and it reliably fixes the problem for us. We'd like to have the problem
    fixed upstream; until that happens we'll have to carry the series forward.

    > I don't see anything in either uvc nor v4l2 that would address the race
    > since this mail half a year ago (well, I could have missed it ;))
    >

    The problem still exists in the upstream kernel.

    Guenter

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