On Tue, Apr 26, 2011 at 01:49:25PM +0800, Dave Young wrote: > Hi, > > When memory pressure is high, readahead could cause oom killing. > IMHO we should stop readaheading under such circumstancesãIf it's true > how to fix it? Good question. Before OOM there will be readahead thrashings, which can be addressed by this patch: http://lkml.org/lkml/2010/2/2/229 However there seems no much interest on that feature.. I can separate that out and resubmit it standalone if necessary. Thanks, Fengguang -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>