Re: 3.14 stable regression don't remove from shrink list in select_collect()

From: Guillaume Morin
Date: Mon Jan 25 2016 - 12:09:32 EST


On 25 Jan 11:25, Jason Baron wrote:
>
> On 01/25/2016 11:05 AM, Shawn Bohrer wrote:
> > I recently updated some machines to 3.14.58 and they reliably get soft
> > lockups. Sometimes the soft lockup recovers and some times it does
> > not. I've bisected this on the 3.14 stable branch and arrived at:
> >
> > c214cb82cdc744225d85899fc138251527f75fff don't remove from shrink
> > list in select_collect()
> >
> > Reverting this commit plus adding back dentry_lru_del() which was
> > removed later on top of 3.14.58 resolves the issue for me. I've
> > included a patch at the bottom with the revert.
>
> I ran into this too on 3.14. You can revert these patches as you've done
> or backport the upstream fixes mentioned here:
>
> http://www.spinics.net/lists/stable/msg111544.html

I actually messed up the commit ids in that message, the fixed list is
here:
http://www.spinics.net/lists/stable/msg111553.html

--
Guillaume Morin <guillaume@xxxxxxxxxxx>