On Wed, 2011-04-27 at 19:25 +0100, Colin Ian King wrote: > Just like to add that I've seen almost identical issues with 2.6.38 > copying large amounts of data to an ext4 filesystem with systems with > small amounts of memory. > > I found that increasing /sys/fs/ext4/sdaX/max_writeback_mb_bump worked > around the issue. With the PREEMPT kernel, values of 256 and 512 don't prevent kswapd spinning up to 99% and staying there. James -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html