On Mon 07-02-11 22:06:54, Michal Hocko wrote: > Hi Andrea, > > I am currently running into an issue when khugepaged is running 100% on > one of my CPUs for a long time (at least one hour as I am writing the > email). The kernel is the clean 2.6.38-rc3 (i386) vanilla kernel. > > I have tried to disable defrag but it didn't help (I haven't rebooted > after setting the value). I am not sure what information is helpful and > also not sure whether I am able to reproduce it after restart (it is the > first time I can see this problem) so sorry for the poor report. > > Here is some basic info which might be useful (config and sysrq+t are > attached): > ========= And I have just realized that I forgot about the daemon stack: # cat /proc/573/stack [<c019c981>] shrink_zone+0x1b9/0x455 [<c019d462>] do_try_to_free_pages+0x9d/0x301 [<c019d803>] try_to_free_pages+0xb3/0x104 [<c01966d7>] __alloc_pages_nodemask+0x358/0x589 [<c01bf314>] khugepaged+0x13f/0xc60 [<c014c301>] kthread+0x67/0x6c [<c0102db6>] kernel_thread_helper+0x6/0x10 [<ffffffff>] 0xffffffff -- Michal Hocko SUSE Labs SUSE LINUX s.r.o. Lihovarska 1060/12 190 00 Praha 9 Czech Republic -- 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>