Re: [PATCH 5.15 000/124] 5.15.36-rc1 review

[John Donnelly]

On 4/26/22 13:38, Greg Kroah-Hartman wrote:
> On Tue, Apr 26, 2022 at 12:24:24PM -0500, John Donnelly wrote:
> > On 4/26/22 12:52 PM, Greg Kroah-Hartman wrote:
> > > On Tue, Apr 26, 2022 at 12:37:21PM -0500, john.p.donnelly@xxxxxxxxxx wrote:
> > > > 76723ed1fb89 2021-12-01 | locking/rwsem: Make handoff bit handling more
> > > > consistent
> > > >
> > > > In Linux 5.15.y.
> > >
> > > That commit is in 5.15.6, released December 1, 2021.  And this just now
> > > shows up?  How is this related to 5.15.36-rc1?
> >
> > Hi,
> >
> > This  was briefly discussed in :
> >
> > Re: [PATCH v5] locking/rwsem: Make handoff bit handling more consistent
>
> Have a lore.kernel.org link?  Why not continue it there?


https://lore.kernel.org/all/eae41639-cbca-4ea6-417f-f9b34a7138ea@xxxxxxxxxx/

I tried and the thread is quiet.

> > Additional testing shows the rwsem hang still exists.  It takes a 24hr fio
> > soak test to show up.
> >
> > It likely still exists in Linux 5.18.y too. We will be testing that in the
> > future as time permits.
>
> Can you test 5.17.y also as there is no 5.18.y yet :)



We did.    It failed there too . ;-) We happened to have 5.18.rc2 in the 
work queue
> thanks,
>
> greg k-h