On Sun, 17 Feb 2019, Sudip Mukherjee wrote:
> Hi Thomas,
>
> On Sun, Feb 17, 2019 at 11:53 AM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >
> > On Sun, 17 Feb 2019, Sudip Mukherjee wrote:
> >
> > > Hi Greg,
> > >
> > > On Mon, Dec 24, 2018 at 12:52:22PM +0100, gregkh@xxxxxxxxxxxxxxxxxxx wrote:
> > > >
> > >
> <snip>
> > > I think we have a real usecase which is triggering this error and I was
> > > still in the middle of debugging that. But my initial analysis was
> > > showing that the userspace thread was stuck in the indefinite loop.
> > > I have a reliable reproducer of the problem and will setup a test
> > > tomorrow and confirm.
> >
> > There are more patches in that area and you also need a fixed glibc.
>
> I can see 1a1fb985f2e2 ("futex: Handle early deadlock return
> correctly") is already there in 4.14-stable.
> Is anything else missing, other than this one?
>
> glibc might be a problem, but lets see what can be done.
Those two are the kernel side of affairs I think.
The relevant glibc commits are:
8f9450a0b7a9e78267e8ae1ab1000ebca08e473e
823624bdc47f1f80109c9c52dee7939b9386d708
Thanks,
tglx
