hi, > When I glanced at this first, I missed that you altered the watermark > check as well. When I said "Code wise the patch is fine", I was wrong. > Compaction works in units of pageblocks and the watermark check > is necessary. Reducing it to COMPACT_CLUSTER_MAX*2 leads to the > possibility of compaction via /proc causing livelocks in low memory > situations depending on the value of min_free_kbytes. ok, thanks a lot for the explanation. Huang Shijie -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. 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>