Hi there ... > Re-verification from testers that these patches really do fix their > problems would be appreciated. Even if hangs disappear, please confirm > that the values for nr_isolated_anon and nr_isolated_file in *both* > /proc/zoneinfo and /proc/vmstat are sensible (i.e. usually zero). I applied these patches to 2.6.38.8 and it run for nearly a month without any problems. Even Though I did not check nr_isolated_*. As (at least) patch3 made it into 2.6.39.3 I did not apply the others any more. And it occurred again this morning: sysload at 2, iowait at 80% on an idle (single core) system $ grep nr_isolated /proc/zoneinfo /proc/vmstat /proc/zoneinfo: nr_isolated_anon 0 /proc/zoneinfo: nr_isolated_file 1 /proc/zoneinfo: nr_isolated_anon 0 /proc/zoneinfo: nr_isolated_file 4294967295 /proc/zoneinfo: nr_isolated_anon 0 /proc/zoneinfo: nr_isolated_file 0 /proc/vmstat:nr_isolated_anon 0 /proc/vmstat:nr_isolated_file 0 I captured several SysRq-* logs, in case they're of interest. Thomas -- 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>