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    SubjectRe: [BUGFIX][PATCH] memcg rcu lock fix in swap code (Was Re: [BUG] an RCU warning in memcg
    On Fri, 23 Apr 2010 11:55:16 +0800
    Li Zefan <lizf@cn.fujitsu.com> wrote:

    > Li Zefan wrote:
    > > KAMEZAWA Hiroyuki wrote:
    > >> On Fri, 23 Apr 2010 11:00:41 +0800
    > >> Li Zefan <lizf@cn.fujitsu.com> wrote:
    > >>
    > >>> with CONFIG_PROVE_RCU=y, I saw this warning, it's because
    > >>> css_id() is not under rcu_read_lock().
    > >>>
    > >> Ok. Thank you for reporting.
    > >> This is ok ?
    > >
    > > Yes, and I did some more simple tests on memcg, no more warning
    > > showed up.
    > >
    >
    > oops, after trigging oom, I saw 2 more warnings:
    >

    ok, I will update. thank you.




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