[Bug 216007] XFS hangs in iowait when extracting large number of files

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https://bugzilla.kernel.org/show_bug.cgi?id=216007

--- Comment #22 from Mel Gorman (mgorman@xxxxxxx) ---
(In reply to Mel Gorman from comment #20)
> (In reply to Peter Pavlisko from comment #19)
> > (In reply to Mel Gorman from comment #18)
> > > Created attachment 301044 [details]
> > > Patch to always allocate at least one page
> > > 
> > > Hi Peter,
> > > 
> > > Could you try the attached patch against 5.18 please? I was unable to
> > > reproduce the problem but I think what's happening is that an array for
> > > receiving a bulk allocation is partially populated and the bulk allocator
> > is
> > > returning without allocating at least one page. Allocating even one page
> > > should hit the path where kswapd is woken.
> > 
> > Hi Mel,
> > 
> > I tried this patch and it does indeed work with 5.18.0-rc7. Without the
> > patch it freezes, after I apply the patch the archive extracts flawlessly.
> 
> Thanks Peter, I'll prepare a proper patch and post it today. You won't be
> cc'd as I only have the bugzilla email alias for you but I'll post a
> lore.kernel.org link here.

https://lore.kernel.org/all/20220526091210.GC3441@xxxxxxxxxxxxxxxxxxx/

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