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

[bugzilla-daemon@kernel.org]

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

--- Comment #20 from Mel Gorman (mgorman@suse.de) ---
(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.

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