Re: [BUG] fatal hang untarring 90GB file, possibly writeback related.

James Bottomley
2011-05-10T14:01:09Z

On Tue, 2011-05-10 at 11:21 +0100, Mel Gorman wrote:
> I really would like to hear if the fix makes a big difference or
> if we need to consider forcing SLUB high-order allocations bailing
> at the first sign of trouble (e.g. by masking out __GFP_WAIT in
> allocate_slab). Even with the fix applied, kswapd might be waking up
> less but processes will still be getting stalled in direct compaction
> and direct reclaim so it would still be jittery.

"the fix" being this

https://lkml.org/lkml/2011/3/5/121

In addition to your GFP_KSWAPD one?

OK, will retry with that.

James