> CC: "Johannes Weiner" <han...@cmpxchg.org>, linux-kernel@vger.kernel.org, > linux...@kvack.org, "cgroups mailinglist" <cgro...@vger.kernel.org>, > "KAMEZAWA Hiroyuki" <kamezawa.hir...@jp.fujitsu.com>, righi.and...@gmail.com >> CC: "Johannes Weiner" <han...@cmpxchg.org>, linux-kernel@vger.kernel.org, >> linux...@kvack.org, "cgroups mailinglist" <cgro...@vger.kernel.org>, >> "KAMEZAWA Hiroyuki" <kamezawa.hir...@jp.fujitsu.com>, righi.and...@gmail.com >>On Wed 10-07-13 18:25:06, azurIt wrote: >>> >> Now i realized that i forgot to remove UID from that cgroup before >>> >> trying to remove it, so cgroup cannot be removed anyway (we are using >>> >> third party cgroup called cgroup-uid from Andrea Righi, which is able >>> >> to associate all user's processes with target cgroup). Look here for >>> >> cgroup-uid patch: >>> >> https://www.develer.com/~arighi/linux/patches/cgroup-uid/cgroup-uid-v8.patch >>> >> >>> >> ANYWAY, i'm 101% sure that 'tasks' file was empty and 'under_oom' was >>> >> permanently '1'. >>> > >>> >This is really strange. Could you post the whole diff against stable >>> >tree you are using (except for grsecurity stuff and the above cgroup-uid >>> >patch)? >>> >>> >>> Here are all patches which i applied to kernel 3.2.48 in my last test: >>> http://watchdog.sk/lkml/patches3/ >> >>The two patches from Johannes seem correct. >> >>From a quick look even grsecurity patchset shouldn't interfere as it >>doesn't seem to put any code between handle_mm_fault and mm_fault_error >>and there also doesn't seem to be any new handle_mm_fault call sites. >> >>But I cannot tell there aren't other code paths which would lead to a >>memcg charge, thus oom, without proper FAULT_FLAG_KERNEL handling. > > >Michal, > >now i can definitely confirm that problem with unremovable cgroups persists. >What info do you need from me? I applied also your little 'WARN_ON' patch. > >azur
Ok, i think you want this: http://watchdog.sk/lkml/kern4.log -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
