Re: [PATCH 1/2] ras: fix an off-by-one error in __find_elem()

[Cong Wang]

On Wed, Apr 17, 2019 at 2:15 PM Luck, Tony <tony.luck@xxxxxxxxx> wrote:
>
> On Tue, Apr 16, 2019 at 07:37:41PM -0700, Cong Wang wrote:
> > On Tue, Apr 16, 2019 at 7:31 PM Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:
> > > Yes it is, I have a stacktrace in production which clearly shows
> > > del_elem.isra.1+0x34/0x40, unlike the one I triggered via fake
> > > PFN's. I can show you if you want, it is on 4.14, so very unlikely
> > > it is interesting to anyone here.
> >
> > Correct myself:
> >
> > The one triggered via fake PFN's also shows
> > del_elem.constprop.1+0x39/0x40.
> >
> > Sorry for the mistake, I kinda read into another crash...
>
> Ok. Now I follow what you are saying. I'll try to rephrase
> here.

Yes, your detailed analysis is correct. Sorry if I caused any
confusion here.

>
>
> So I'm now liking this version of the patch by Cong:
>
...
> Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx>


Thanks for reviewing my patch!