Hello there, I see some bad behavior of xfs, which I can reproduce: 1. Create some directories and files on xfs volume (I use ~800000 files and 80000 directories on 4GB RAM system) 2. Create workload, that produces light page cache pressure (say, 4-8 MB/s) and while pagecache eats all of free ram. I use the code from [1]) 3. Stat all the objects on xfs volume The result depends on kernel version: 3.2) See kswapd struggling through D-state for several minutes. 3.7) See kswapd struggling through D-state forever Same steps on ext4 do not produce any bad results -- [1] https://bugzilla.kernel.org/show_bug.cgi?id=53031 [2] _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs