On Tue, 27 Dec 2011 21:33:04 +0800 Hillf Danton <dhillf@xxxxxxxxx> wrote: > On Tue, Dec 27, 2011 at 8:20 AM, KAMEZAWA Hiroyuki > <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: > > On Mon, 26 Dec 2011 20:35:46 +0800 > > Hillf Danton <dhillf@xxxxxxxxx> wrote: > > > >> On Sun, Dec 25, 2011 at 6:21 PM, Nikolay S. <nowhere@xxxxxxxxxxxxxxxx> wrote: > >> > > >> > Uhm.., is this patch against 3.2-rc4? I can not apply it. There's no > >> > mem_cgroup_lru_del_list(), but void mem_cgroup_del_lru_list(). Should I > >> > place changes there? > >> > > >> > And also, -rc7 is here. May the problem be addressed as part of some > >> > ongoing work? Is there any reason to try -rc7 (the problem requires > >> > several days of uptime to become obvious)? > >> > > >> > >> Sorry, Nikolay, it is not based on the -next, nor on the -rc5(I assumed it was). > >> The following is based on -next, and if you want to test -rc5, please > >> grep MEM_CGROUP_ZSTAT mm/memcontrol.c and change it. > >> > >> Best regard > >> > > > > Hmm ? memcg is used ? Why do you consider this will be a help ? > > > > Hi Kame > > Please see the livelock at > https://lkml.org/lkml/2011/12/23/222 > > and if it is related to the hog here, please check if the following is > in right direction. > But linux-next and his 3.2-rc5 has totally different LRU design. 3.2-rc doesn't have unified memcg/global LRU and memcg doesn't affect kswapd behavior if not used. Thanks, -Kame > Thanks > Hillf > --- > > --- a/mm/memcontrol.c Mon Dec 26 20:34:38 2011 > +++ b/mm/memcontrol.c Tue Dec 27 20:05:12 2011 > @@ -3637,6 +3637,7 @@ static int mem_cgroup_force_empty_list(s > list = &mz->lruvec.lists[lru]; > > loop = MEM_CGROUP_ZSTAT(mz, lru); > + WARN_ON((long)loop < 0); > /* give some margin against EBUSY etc...*/ > loop += 256; > busy = NULL; > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- 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>